CN105145478B - A kind of method for breeding promoting 0~2 monthly age lamb histoorgan and gastrointestinal development - Google Patents

Abstract

The invention provides a feeding method for promoting the development of tissues, organs and gastrointestinal tract of 0-2 month-old lambs. The lambs are fed with their mothers from newborn to 14 days old, and gradually transition from breast milk to feeding milk substitutes at 15-17 days old; The 18-day-old lamb was weaned and fed milk replacer until 60-day-old; at the same time, the lambs began to train to eat pelleted starter at the 14-day-old, and the lamb began to increase the amount of starter 5 days after weaning to ensure that the lamb could eat the starter at any time. Foodstuffs. The invention determines the recommended feeding amount of the scientific milk replacer and starter, can promote the healthy development of the tissues, organs and gastrointestinal tract of the lamb, and alleviate the weaning stress to the greatest extent.

Description

A feeding method for promoting the development of tissues, organs and gastrointestinal tract of lambs aged 0-2 months

technical field

The invention relates to the technical field of animal husbandry, in particular to a feeding method for promoting the development of tissues, organs and gastrointestinal tract of 0-2 month-old lambs.

Background technique

my country is a big sheep raising country in the world, with a population of 280 million sheep and an annual output of about 4 million tons of mutton. However, the price of mutton remains high and is higher than the international market level. The lagging technology of sheep raising has affected the development of the industry. There are more than 100 million newborn lambs in my country every year, but the mortality rate is more than 10%, that is, more than 10 million dead lambs, which has caused huge losses to the reproduction of animal husbandry. One of the reasons is the malnutrition or imbalance of lambs during lactation (0-2 months of age). Studies have found that only relying on breast milk cannot meet the nutritional needs of lambs, especially multiple lambs, which will affect the normal development of lambs, especially the development of tissues, organs and gastrointestinal tract. At present, my country's sheep breeding industry is changing from traditional to modern breeding, from free-range breeding to large-scale and intensive breeding, which requires lambs from newborn to 2 months of age to have similar growth rates and developmental degrees. And because lamb body development is bad, especially the difference of body weight is big, has had a strong impact on intensive and large-scale feeding management.

The degree of development of tissues, organs and gastrointestinal tract of lambs from newborn to 2 months old is related to the later growth and production performance of lambs. Studies have shown that the weight of internal organs and the organ index reflect the development status of the animal body, the mass of internal organs can be used as an indicator of its function, and the internal organ index reflects the nutritional status and physiological function state of the animal. For example, the liver is the largest digestive and metabolic organ among internal organs. Hepatic metabolic activity is affected by changes in the content and types of hepatic metabolic substrates, and increased hepatic metabolic activity manifests as an increase in liver weight. The degree of development of the lamb's stomach directly affects the feed intake and feed utilization of the sheep, especially the development of the rumen. The intestinal tract, especially the small intestine, is the main site for the digestion and absorption of nutrients. It shares the digestive function with the stomach, and the change in its weight reflects the digestion and absorption of nutrients. Currently, there are very limited studies on the effects of feeding patterns on the development of tissues, organs and gastrointestinal tract of lambs aged 0-2 months. Our research found that nutritional factors are one of the key factors limiting the development of digestive organs in lambs aged 0-2 months, especially the development of rumen and liver has a significant impact. Regulating the nutrient intake of lambs through feeding patterns can effectively promote the development of lambs' internal organs and gastrointestinal tract.

Contents of the invention

In order to solve the problems in the prior art, the purpose of the present invention is to provide a feeding method for promoting the development of tissues, organs and gastrointestinal tract of 0-2 month-old lambs.

In order to realize the object of the invention, the technical scheme of the present invention is as follows:

A feeding method for promoting the development of tissues, organs and gastrointestinal tract of lambs aged 0 to 2 months. The lambs are fed in the delivery room from birth to 14 days old and breastfed with their mothers, and gradually transition from breast milk to feeding milk substitutes at 15 to 17 days old; The 18-day-old lamb was weaned, separated from the ewe, and transferred from the farrowing room to the lamb house, where the milk replacer was fed until 60 days old, during which the daily feeding amount of milk replacer was adjusted according to the age of the lamb; Start training to eat pelleted starters at the age of 12, and begin to increase the amount of starters quantitatively after 5 days of weaning. The number of starters is not limited to ensure that the lambs can eat starters at any time.

Further, the feeding amount and feeding method of 15-17 day-old lambs are as follows:

Lambs are fed 3-5 times a day with milk substitutes; the feeding amount of milk substitutes is 15 days old: 20-40 grams/day; 16 days old: 60-80 grams/day; 17 days old: 80-100 grams/day sky;

The time for the lamb to breastfeed with the mother is 15 days old: 3-5 times a day, 1-2 hours each time; 16 days old: 2-4 times a day, 1-2 hours each time; 17 days old: 1-3 times a day times, 1 to 2 hours each time.

Preferably, the feeding amount and feeding method of 15-17 day old lambs are:

The lambs were fed milk substitute 4 times a day; the feeding amount of milk substitute was 15 days old: 30 grams/day; 16 days old: 60 grams/day; 17 days old: 90 grams/day;

The time for lambs to breastfeed with their mothers is 15 days: 3 times a day, 1 hour each time; 16 days: 2 times a day, 1 hour each time; 17 days: 1 time a day, 1 hour each time.

Further, the feeding amount and feeding method of the weaned lamb milk replacer are:

From 18 to 56 days old, feed milk replacer 2 to 4 times a day: among them, 18 to 21 days: 80 to 110 g/day; 22 to 28 days: 100 to 140 g/day; 29 to 35 days: 120-160 g/day; 36-42 days: 140-180 g/day; 43-49 days: 160-200 g/day; 50-56 days: 140-180 g/day;

57-60 days old, gradually stop feeding milk substitutes: among them, 57-58 days old, feed milk substitutes 2-3 times a day, and the feeding amount of milk substitutes is 100-120 grams per day; Feed the milk substitute 1-2 times, the feeding amount of the milk substitute is 50-70 g/day;

After 60 days of age, the lambs were transferred to the rearing house and no longer fed milk replacer.

As preferably, the feeding amount and the feeding method of the lamb milk substitute after weaning are:

18-56 days old, feed milk replacer 3 times a day: among them, 18-21 days old: 90 g/day; 22-28 days old: 110 g/day; 29-35 days old: 130 g/day; 36 ～42 days old: 150 g/day; 43～49 days old: 180 g/day; 50～56 days old: 160 g/day;

From 57 to 60 days of age, gradually stop feeding milk substitutes: among them, 57 to 58 days of age, feed milk substitutes twice a day, and the feeding amount of milk substitutes is 100 grams per day; 59 to 60 days of age, feed milk substitutes every day 1 time, the feeding amount of milk replacer is 60 g/day.

Further, quantitatively increase the feeding amount of the starter and the feeding method as follows: the starter is fed unlimited times, and the starter is free to eat at the age of 15-20 days, and the feeding amount is 0-20 g/day; 21-56 Day-old, the amount of starter feed increases linearly. On the basis of the feed amount at 20-day-old, increase by 12-18 grams per day, until 56-day-old, the amount of starter feed is 450-650 g/day; 57-60 days old The lamb starter feed is 500-700 grams per day.

As a preference, quantitatively increasing the feeding amount and feeding method of the starter is as follows: the starter is fed unlimited times, the starter is free to eat at the age of 15 to 20 days, and the feeding amount is 0 to 20 grams per day; 21 to 56 On the basis of the feeding amount at the age of 20 days, increase the amount of starter feed by 15 grams per day to 550 g/day at the age of 56 days; for lambs at the age of 57 to 60 days, the amount of starter feed is 600 g/day.

Further, the formulation method of the milk replacer is as follows: 30-60 minutes before feeding, the milk replacer is brewed with hot water that is boiled and then cooled to 50°C, and the dry matter content of the brewed milk replacer emulsion is kept at 12.5%- 20%, feed when the milk replacer emulsion is cooled to 38-41°C.

As a preference, the formulating method of the milk replacer is as follows: 40 minutes before feeding, the milk replacer is brewed with boiling hot water cooled to 50°C, and the dry matter content in the brewed milk replacer emulsion is kept at 16%. Feed when the milk emulsion is cooled to 38°C.

In the best implementation mode of the present invention, described method is specifically:

The lambs are raised in the delivery room from birth to 14 days old and breastfed by the mother, and then use 3 days to gradually transition from breast milk to feeding milk substitutes; when the lambs are separated from the ewes at the age of 18 days, they are transferred from the delivery room to the lamb house; the lambs are fed in the lamb house Feed the milk replacer until the age of 60 days. During this period, adjust the daily milk replacer feeding amount according to the age of the lambs; at the same time, the lambs began to train to eat pellet starters at the age of 14, and the lambs began to increase the amount of starter feeds quantitatively after 5 days of weaning , the starter is fed unlimited times to ensure that the lamb can eat the starter at any time;

The feeding amount and feeding method of lamb milk replacer in the 3-day transitional period are as follows: the lamb is fed milk replacer 4 times a day; the feeding amount of milk replacer is 15 days old: 30 grams/day; 16 days old: 60 g/day; 17 days old: 90 g/day; lambs are fed with their mothers respectively: 15 days old: 3 times a day, 1 hour each time, 16 days old: 2 times a day, 1 hour each time, 17 days Age: 1 time a day, 1 hour each time;

The feeding amount and feeding method of the milk replacer for the lambs after weaning are as follows: the lambs are 18-56 days old, and the milk replacer is fed 3 times a day; the milk replacer feeding amount: 18-21 days old: 90 grams/day; 22-28 days: 110 g/day; 29-35 days: 130 g/day; 36-42 days: 150 g/day; 43-49 days: 180 g/day; 50-56 days: 160 g/day; 57-58 days old, feed milk substitute 2 times a day, the feeding amount of milk replacer is 100 g/day; 59-60 days old, feed milk replacer once a day, the feeding amount of milk replacer is 60 g /day; After 60 days of age, the lambs are transferred to the rearing house and no longer fed milk replacer;

The formulation method of the milk replacer is as follows: 40 minutes before feeding, brew the milk replacer with boiled hot water cooled to 50°C, keep the dry matter content in the brewed milk replacer emulsion at 16%, and wait for the milk replacer emulsion to cool. Feed at 38°C;

The quantitatively increased feeding amount and feeding method of the starter are as follows: the starter is fed for an unlimited number of times, and the starter is taken at will at the age of 15 to 20 days, and the feeding amount is 0 to 20 g/day; 21 to 56 On the basis of the feeding amount at the 20-day-old lamb, increase the amount of starter feed by 15 grams per day; until the age of 56 days, the feeding amount of the starter feed is 550 g/day; g/day.

The beneficial effects of the present invention are:

The invention provides a feeding technique for promoting the development of lamb's liver, rumen, small intestine and other important tissues and organs and gastrointestinal tract, thereby promoting the lamb's digestion and absorption of nutrients and improving feed utilization efficiency. The invention is applicable to various young lambs, especially multiple-born lambs. The technology provided by the invention is simple, easy to implement and convenient to use. It is conducive to the rapid and healthy growth of lambs, promotes the recovery of body condition of ewes, and shortens the breeding cycle.

The method of the invention overcomes the disadvantages in the prior art that the starter feed is fed freely and the actual feed intake of the lamb and the scientific weaning timing cannot be determined. Moreover, the present invention determines the recommended feeding amount of scientific milk replacer and starter, which can promote the healthy development of lamb tissues, organs and gastrointestinal tract, and relieve weaning stress to the greatest extent.

Description of drawings

Fig. 1 is a comparison of feed intake of milk substitutes of lambs aged 15-60 days in Examples 1, 2, and 3 of the present invention.

Fig. 2 is a comparison of starter feed intake of lambs aged 15 to 60 days in the experimental example of the present invention between the control group and the lambs in Examples 1, 2 and 3.

Fig. 3 is the body weight comparison of the control group in the experimental example of the present invention and the 20, 40, and 60-day-old lambs in embodiments 1, 2, and 3.

Detailed ways

The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

The methods in the following examples, unless otherwise specified, are conventional methods in the art. All conventional feeding methods involved here refer to lambs aged 0-2 months.

The milk replacer used in the examples is precision lamb milk replacer, and the manufacturer is Beijing Precision Animal Nutrition Research Center; the starter is precision lamb starter, and the manufacturer is Beijing Precision Animal Nutrition Research Center.

Example 1

The lambs were fed from birth to 14 days old in the delivery room and breastfed with their mothers, and then used 3 days to gradually transition from breast milk to feeding milk substitutes. The lambs were separated from the ewes at the age of 18 days and transferred from the farrowing room to the lamb house. The lambs were fed milk replacer in the lamb house until 60 days old, during which the daily milk replacer feeding amount was adjusted according to the age of the lambs. At the same time, the lambs began to train to eat granular starters at the age of 14 days, and the amount of starters was increased quantitatively after 5 days of weaning. The number of starters was not limited to ensure that the lambs could eat starters at any time.

The feeding amount and feeding method of the lamb milk replacer in the 3-day transitional period are as follows: the lamb is fed with the milk replacer 3 times a day; the feeding amount of the milk replacer is 15 days old: 40 grams/day; 16 days old: 80 g/day; 17 days old: 100 g/day; lambs are fed with their mothers respectively: 15 days old: 4 times a day, 2 hours each time, 16 days old: 3 times a day, 2 hours each time, 17 days Age: 2 times a day, 1 hour each time.

After weaning, the lambs are transferred from the farrowing room to the lamb house for rearing.

The amount and feeding method of the milk substitute for the lambs after weaning are as follows: the lambs are 18-56 days old, and the milk substitute is fed twice a day. Among them, 18 to 21 days: 110 grams/day; 22 to 28 days: 140 grams/day; 29 to 35 days: 160 grams/day; 36 to 42 days: 180 grams/day; 43 to 49 days Age: 200 g/day; 50-56 days: 180 g/day. From 57 to 60 days of age, gradually stop feeding milk substitutes. Among them, 57 to 58 days of age, feed milk substitutes twice a day, and the feeding amount of milk substitutes is 120 grams per day; 59 to 60 days of age, feed milk replacers 1 times, the feeding amount of milk replacer is 70 g/day. After 60 days of age, the lambs were transferred to the rearing house and no longer fed milk replacer.

The formulation method of the milk replacer is as follows: 30 minutes before feeding, brew the milk replacer with boiled hot water cooled to 50°C, keep the dry matter content in the brewed milk replacer emulsion at 20%, and wait for the milk replacer emulsion to cool. Feed at 39°C.

The quantitative increase of the feeding amount and feeding method of the starter is as follows: the number of times of feeding the starter is unlimited. 15-20 days old: the starter is free to eat, and the feeding amount is 0-20 g/day; 21-56 days old, the amount of starter feed increases linearly, and on the basis of the 20-day-old feeding amount, increase daily 12 grams. 450 g/day of starter to 56 days of age; 500 g/day of starter for lambs at 57 to 60 days of age.

Example 2

The lambs were fed from birth to 14 days old in the delivery room and breastfed with their mothers, and then used 3 days to gradually transition from breast milk to feeding milk substitutes. The lambs were separated from the ewes at the age of 18 days and transferred from the farrowing room to the lamb house. The lambs were fed milk replacer in the lamb house until 60 days old, during which the daily milk replacer feeding amount was adjusted according to the age of the lambs. At the same time, the lambs began to train to eat granular starters at the age of 14 days, and the amount of starters was increased quantitatively after 5 days of weaning. The number of starters was not limited to ensure that the lambs could eat starters at any time.

The feeding amount and feeding method of lamb milk replacer in the 3-day transitional period are as follows: the lamb is fed milk replacer 5 times a day; the feeding amount of milk replacer is 15 days old: 20 grams/day; 16 days old: 60 g/day; 17 days old: 80 g/day; lambs are fed with their mothers respectively: 15 days old: 5 times a day, 1 hour each time, 16 days old: 4 times a day, 1 hour each time, 17 days Age: 3 times a day, 1 hour each time.

After weaning, the lambs are transferred from the farrowing room to the lamb house for rearing.

The feeding amount and feeding method of the milk substitute for the lambs after weaning are as follows: the lambs are 18-56 days old, and the milk substitute is fed 4 times a day. Among them, 18 to 21 days: 80 grams/day; 22 to 28 days: 100 grams/day; 29 to 35 days: 120 grams/day; 36 to 42 days: 140 grams/day; 43 to 49 days Age: 160 g/day; 50-56 days: 140 g/day. At the age of 57-58 days, feed the milk substitute 3 times a day, and the feeding amount of the milk substitute is 100 g/day; at the age of 59-60 days, feed the milk substitute twice a day, and the feeding amount of the milk substitute is 50 g/day. After 60 days of age, the lambs were transferred to the rearing house and no longer fed milk replacer.

The formulation method of the milk replacer is as follows: 60 minutes before feeding, the milk replacer is brewed with hot water that is boiled and cooled to 50°C, and the dry matter content in the brewed milk replacer emulsion is kept at 12.5%. Feed when cooled to 38°C.

The quantitative increase of the feeding amount and feeding method of the starter is as follows: the number of times of feeding the starter is unlimited. From 15 to 20 days old, the starter can be eaten freely, and the feeding amount is 0-20 g/day; from 21 to 56 days, the feeding amount of the starter increases linearly, and on the basis of the feeding amount of the 20-day-old, increase by 18 grams per day. gram. 650 g/day of starter until 56 days old; 700 g/day of starter for lambs at 57-60 days of age.

Example 3

The lambs were fed from birth to 14 days old in the delivery room and breastfed with their mothers, and then used 3 days to gradually transition from breast milk to feeding milk substitutes. The lambs were separated from the ewes at the age of 18 days and transferred from the farrowing room to the lamb house. The lambs were fed milk replacer in the lamb house until 60 days old, during which the daily milk replacer feeding amount was adjusted according to the age of the lambs. At the same time, the lambs began to train to eat granular starters at the age of 14 days, and the amount of starters was increased quantitatively after 5 days of weaning. The number of starters was not limited to ensure that the lambs could eat starters at any time.

The feeding amount and feeding method of lamb milk replacer in the 3-day transitional period are as follows: the lamb is fed milk replacer 4 times a day; the feeding amount of milk replacer is 15 days old: 30 grams/day; 16 days old: 60 g/day; 17 days old: 90 g/day; lambs are fed with their mothers respectively: 15 days old: 3 times a day, 1 hour each time, 16 days old: 2 times a day, 1 hour each time, 17 days Age: 1 time a day, 1 hour each time.

After weaning, the lambs are transferred from the farrowing room to the lamb house for rearing.

The feeding amount and feeding method of the milk replacer for the lambs after weaning are as follows: the lambs are 18-56 days old, and the milk replacer is fed 3 times a day; the milk replacer feeding amount: 18-21 days old: 90 grams/day; 22-28 days: 110 g/day; 29-35 days: 130 g/day; 36-42 days: 150 g/day; 43-49 days: 180 g/day; 50-56 days: 160 g/day. At the age of 57-58 days, feed the milk replacer twice a day, and the feeding amount of the milk replacer is 100 g/day; at the age of 59-60 days, feed the milk replacer once a day, and the feeding amount of the milk replacer is 60 g/day. After 60 days of age, the lambs were transferred to the rearing house and no longer fed milk replacer.

The formulation method of the milk replacer is as follows: 40 minutes before feeding, brew the milk replacer with boiled hot water cooled to 50°C, keep the dry matter content in the brewed milk replacer emulsion at 16%, and wait for the milk replacer emulsion to cool. Feed at 38°C.

The quantitatively increased feeding amount and feeding method of the starter are as follows: the starter is fed for an unlimited number of times, and the starter is taken at will at the age of 15 to 20 days, and the feeding amount is 0 to 20 g/day; 21 to 56 At the age of days, the amount of starter feed increases linearly, and on the basis of the feed intake at the age of 20 days, increase by 15 grams per day. 550 g/day of starter until 56 days old; 600 g/day of starter for lambs from 57 to 60 days of age.

Experimental example:

Following is the lamb feeding test report that adopts embodiment:

1. Test materials and methods: 64 newborn lambs were used as test animals, and the breed was Hu sheep produced in Jiangsu, China. The 64 test lambs were divided into four groups, each group had 4 repetitions, and each repetition had 4 lambs, half male and half female. The control group was fed to 60 days old by traditional breastfeeding. Experiment 1, 2, and 3 groups of lambs were fed with their mothers at the age of 0 to 14 days, and were fed with the methods of Examples 1, 2, and 3 of the present invention at the age of 15 to 60 days. See Table 1 for the nutritional levels of the milk replacer and starters described in the examples.

Table 1 Nutrient levels of milk replacer and starter (dry matter basis, %)

index dry matter crude protein crude fat crude fiber calcium Total Phosphorus Digestible energy MJ/kg milk replacer 94.45 24.31 20.23 0.23 0.94 0.67 18.12 Starter 86.22 18.50 2.46 4.83 0.26 0.43 12.95

Note: Nutrient levels are measured values except for digestible energy which is calculated value.

2. Measurement indicators: Accurately weigh the body weight of lambs at 20, 40, and 60 days of age, and record the daily intake of milk replacer and starter for lambs at 20 to 60 days of age. When the lambs were 60 days old, 4 healthy lambs with close to the average body weight were selected from each group and slaughtered after fasting and water deprivation for 16 hours. The tissues, organs and gastrointestinal tract of the lambs were separated and weighed.

3. Test results

3.1 Lamb growth performance

The growth and development of lambs from newborn to 2 months old are characterized by fast growth and strong plasticity. In this experimental example, the average weight gain during the lamb test of control group, embodiment 1, 2, 3 is respectively 7.25kg, 7.45kg, 7.60kg, 8.95kg; Embodiment 3 lamb weight gain speed is better than other three groups, respectively The other three groups gained weight 23%, 21% and 17% faster. The average starter feed intake of the 60-day-old lambs of the control group, embodiments 1, 2, and 3 was 521, 537, 576, and 615 g/d respectively, and the starter feed intake of the lambs in Example 3 increased by 7.0% compared with the other three groups. %, 14.8% and 18.2% (Figures 1-3). It shows that the feeding of the lamb milk replacer is closely related to the intake of the starter, and the feeding method of Example 3 increases the intake of the starter of the lamb, satisfies the nutritional needs of the lamb, and promotes the growth and development of the lamb.

3.2 Development of important organs of lamb

The weight and organ index of the animal's internal organs reflect the development status of the animal's body, the mass of the internal organ can be used as an approximate index of its function, and the internal organ index reflects the nutritional status and physiological function state of the animal. Especially the liver, as the largest digestive and metabolic organ among internal organs, the increase of its metabolic activity is affected by the content and type of liver metabolic substrates. The increase of liver metabolic activity shows the increase of liver weight. As can be seen from Table 2, the liver weight of embodiment 2 and 3 groups of lambs and its ratio to live weight before slaughter are significantly higher than that of the control group and embodiment 1 group (P<0.05), while the liver value of embodiment 3 groups of lambs It is higher than Example 2 group again. The spleen weight of the lamb in Example 1 group was significantly lower than that in Examples 2 and 3 (P<0.05), and there was no significant difference from the control group. The weight of each group's lamb heart, lung and kidney and the ratio that accounts for the live weight before slaughtering have no significant difference (P>0.05); Show that embodiment 3 and 2 have promoted the development of lamb's liver, help to improve lamb's to feed nutrient substance Digestion and absorption.

Table 2 Lamb internal organ development

3.3 Lamb stomach development

The degree of development of the lamb's stomach directly affects the feed intake and feed utilization of the sheep in the later stage, especially the development of the rumen. From 21 days to 56 days, the lamb's rumen is in the transitional stage from non-ruminating to ruminating, and the rumen is in a rapid development stage at this stage. Can get by table 3, the rumen weight of embodiment 2, 3 groups of lambs and its proportion that accounts for compound stomach are all significantly higher than embodiment 1 and matched group (P<0.05), and the rumen weight of embodiment 3 lambs is significantly higher than Example 2 (P<0.05). There was no significant difference in the weights of reticulum, omasum and abomasum and their proportions in live weight before slaughter (P>0.05). The ratio of omasum to compound stomach in BR group was higher than that in PR group and CON group (P<0.05). There was no significant difference in the ratio of abomasum to compound stomach among the four groups (P>0.05), but the lambs in Example 3 group were still superior to other groups in numerical value. Feeding methods had consistent effects on liver and rumen development. The feeding method in Example 3 has promoted the development of the lamb's rumen.

Table 3 Lamb stomach development

2.4 Lamb intestinal development

The intestinal tract, especially the small intestine, is the main site for the digestion and absorption of nutrients, and changes in its weight affect the digestion and absorption of nutrients. The weights of small intestine and large intestine of lambs in Example 2 and Group 3 were significantly higher than those in Example 1 and the control group (P<0.05), while Example 3 was higher than Example 2 in numerical value. There was no significant change in the ratio of gut weight to live weight before slaughter (P>0.05) (Table 4). Show that embodiment 2 and 3 groups have promoted lamb intestinal development.

Table 4 Lamb gut development

To sum up, there is a close relationship between the lamb milk replacer and the feed intake of the lamb starter, and the feeding method in Example 3 of the present invention promotes the improvement of the feed intake of the lamb starter. Combined with the development of liver, rumen, and intestine, it can be found that different feeding methods have a significant impact on the development of lamb tissues, organs and intestines. Combining with the changes of lamb starter feed intake, it can be seen that the development of lamb liver, rumen and intestinal tract is closely related to the feed intake of milk replacer and starter. The higher starter feed intake of lambs in Example 3 of the present invention makes rumen fermentation produce more volatile acids, especially butyric acid, which can promote rumen development, and the development of rumen provides more nutrients for the liver and intestinal tract, thereby promoting the development of the latter.

Although the present invention has been described in detail with general descriptions and specific embodiments above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.

Claims (1)

1. a kind of method for breeding promoting 0~2 monthly age lamb histoorgan and gastrointestinal development, which is characterized in that the method Specially：

Lamb is come into being to the raising of 14 ages in days in, with female lactation, being then gradually transitioned into feeding from breast milk using 3 day time in delivery room Milk replacer；It is detached to 18 days old lambs with ewe, lamb house is transferred to by delivery room；Lamb feeds milk replacer until 60 in lamb drylot feeding During which age in days adjusts daily milk replacer scale of feeding according to lamb age in days；Meanwhile lamb starts training feeding particle in 14 ages in days and opens Foodstuff, lamb start quantitative increase opened guideway scale of feeding after weaning 5 days, opened guideway feeds unlimited number, ensures that lamb at any time can Have opened guideway；

3 day transitional period lamb milk replacer scale of feeding and feeding method are：Lamb feeds milk replacer 4 times daily；Milk replacer Scale of feeding be respectively 15 ages in days：30 grams/day；16 ages in days：60 grams/day；17 ages in days：90 grams/day；Lamb with female lactation time Respectively 15 ages in days：3 times a day, every time 1 hour, 16 ages in days：2 times a day, every time 1 hour, 17 ages in days：1 time a day, every time 1 Hour；

Milk replacer scale of feeding and feeding method after the lamb wean are：18~56 age in days of lamb feeds milk replacer 3 daily It is secondary；Milk replacer scale of feeding：18~21 ages in days：90 grams/day；22~28 ages in days：110 grams/day；29~35 ages in days：130 grams/day；36 ~42 ages in days：150 grams/day；43~49 ages in days：180 grams/day；50~56 ages in days：160 grams/day；57~58 ages in days are fed daily Milk replacer 2 times, 100 grams/day of milk replacer scale of feeding；59~60 ages in days, feed milk replacer 1 time daily, and 60 grams of milk replacer scale of feeding/ It；Lamb is transferred to incubation house after 60 ages in days, no longer feeds milk replacer；

The concocting method of the milk replacer is：First 40 minutes are fed with the brewed in hot water milk replacer for boiling postcooling to 50 DEG C, guarantor Dry matter content in the milk replacer lotion after brewing is held to feed when milk replacer lotion is cooled to 38 DEG C 16%；

The scale of feeding and feeding method of the quantitative increase opened guideway be：Opened guideway feeds unlimited number, and 15~20 ages in days are opened Foodstuff is arbitrarily searched for food, and scale of feeding is 0~20 gram/day；21~56 ages in days, opened guideway scale of feeding is linearly increasing, is fed in 20 ages in days On the basis of amount, increase by 15 grams daily；To 56 550 grams/day of age in days opened guideway scales of feeding；57~60 days old lamb opened guideways are fed 600 grams/day of amount.