CN101731479A - Feed for pork rich in omega-3 fatty acid and preparation method thereof - Google Patents

Abstract

The invention provides a production method rich in omega that increases the proportion of omega-3 fatty acid in pig intramuscular fat, back fat, abdominal fat, heart and liver fat by 3-7 times, pork rich in omega-3 fatty acid is not easy to oxidize, and has a long storage time. -3 fatty acid pork feed and preparation method thereof. The feed is to add 10% linseed, VE200/kg ration, and 1% Chinese herbal medicine compounded by Ligustrum lucidum and Radix Astragali in a ratio of 1:1 in the compound diet. The steps of the method include: screening of linseed; selection of VE; preparation of compound Chinese herbal medicine; formula of diet; preparation of diet. The feed described in the invention can increase the proportion of omega-3 fatty acid in pig intramuscular fat, back fat, abdominal fat, heart and liver fat by 3-7 times. Moreover, the pork rich in omega-3 fatty acids is not easy to oxidize and has a long storage time.

Description

Feed for producing pork rich in omega-3 fatty acid and preparation method thereof

(1) Technical field

The invention relates to animal science, in particular to a feed for producing pork rich in omega-3 fatty acids and a preparation method thereof.

(2) Background technology

In recent years, scientists have discovered that omega-3 fatty acids are essential fatty acids for the human body. They play an important role in preventing and treating cardiovascular and cerebrovascular diseases, promoting brain growth and development, and improving the body's immunity. They are important substances for maintaining human evolution, health and longevity. When there are enough omega-3 fatty acids in the human body, it can effectively resist the invasion of the following diseases: senile dementia, mental retardation, low memory, immune diseases, etc.; at the same time, it can remove blood vessel "garbage", improve blood vessel elasticity, and effectively prevent heart disease. Cerebrovascular disease. The human body cannot synthesize omega-3 fatty acids, so it can only be ingested from the diet. Omega-3 fatty acids are found in deep-sea fish and seeds of a few plants, and the content in general foods is very small; even if we eat whole grains and vegetables, our daily diet also contains There will be a lack of omega-3 fatty acids. The omega-3 fatty acids in pork fat, the main source of people's intake of fat, are not enough to meet people's health needs. When the intake of saturated fatty acids in dietary fat is too high, it is easy to cause hyperlipidemia and increase the possibility of coronary heart disease. While maintaining a high lean meat percentage, increasing the content of omega-3 fatty acids in pig carcasses to make it more beneficial to the health of consumers will be the development direction of pork production.

The flaxseeds grown in Heilongjiang Province are rich in linolenic acid, but flaxseeds contain some harmful anti-nutritional factors, including cyanoglycosides, vitamin B6 inhibitors, trypsin inhibitors, etc., and cannot be eaten directly. The price of linseed is low, and it also contains high nutritional value. The oil content is 36%-45%, its saturated fatty acid accounts for 9%-11%, unsaturated fatty acid reaches more than 80%, oleic acid 13%-29%, linoleic acid 15% to 30%, 40% to 60% linolenic acid, Dongbei Min pig is a characteristic local pig breed in Heilongjiang Province, ranking fourth in the world's local pig breeds, with firm meat, evenly distributed marbling, and high intermuscular fat content , bright red flesh color, delicate and juicy taste, complete color and fragrance, high litter size, strong disease resistance, resistance to rough feeding, and remarkable hybridization effect.

(3) Contents of the invention

The purpose of the present invention is to provide a production method that increases the proportion of omega-3 fatty acids in pig intramuscular fat, back fat, abdominal fat, heart and liver fat by 3-7 times, and pork rich in omega-3 fatty acids is not easy to oxidize and has a long storage time Feed rich in omega-3 fatty acid pork and its preparation method.

The purpose of the present invention is achieved in that a kind of feed for producing pork rich in omega-3 fatty acid is to add 10% oil content > 36% to 45% in the compound diet, wherein unsaturated fatty acid > 80% %, flaxseed with linolenic acid > 40%, add VE200/kg to the diet at the same time, and then add 1% of Chinese herbal medicine composed of Ligustrum lucidum and Astragalus in a ratio of 1:1. A described preparation method for producing pork feed rich in omega-3 fatty acids, the steps are as follows:

Step 1: Screening of flaxseed

The oil content of linseed is screened out > 36%, among which the unsaturated fatty acid reaches > 80%, and the linolenic acid > 40%, to remove impurities;

Step 2: Selection of VE

Choose dl-a-tocopheryl acetate, the activity is 50%;

Step 3: Preparation of compound Chinese herbal medicine

Astragalus membranaceus and Ligustrum lucidum were dried (60-65°C) and pulverized, passed through a 40-mesh sieve, and mixed in a ratio of 1:1;

Step 4: Diet formulation

The linseed described in step 1, step 2 and step 3 is used in a ratio of 10%, VE is used in a ratio of 200mg/kg diet, and the compound Chinese herbal medicine is used in a ratio of 1% to prepare a diet formula for fattening pigs;

Reference pig diet formula (%): corn 65.6, soybean meal 11.0, wheat bran 10.0, linseed 10.0, calcium hydrogen phosphate 0.4, stone powder 0.9, salt 0.3, lysine (98%) 0.2, choline chloride (50% ) 0.1, trace element premix 0.2, vitamin premix 0.02, vitamin E (50% active) 0.04, compound Chinese herbal medicine 1.0, zeolite 0.06, total 100.0;

Step five: feed preparation

According to the formula described in step 4, the raw materials are pulverized and mixed evenly to make powder.

The invention is a feed for producing pork rich in omega-3 fatty acid and a preparation method thereof, which can increase the proportion of omega-3 fatty acid in pig intramuscular fat, back fat, abdominal fat, heart and liver fat by 3-7 times. Moreover, the pork rich in omega-3 fatty acids is not easy to oxidize and has a long storage time.

(4) Specific implementation methods

The following examples illustrate the present invention further.

Embodiment 1: A kind of feed of the present invention for producing pork rich in omega-3 fatty acids, adding 10% oil content > 36% to 45% in the compound diet, wherein unsaturated fatty acid > 80%, linolenic acid > 40% flaxseed, and at the same time, add VE200/kg to the diet, and then add 1% of the Chinese herbal medicine made of Ligustrum lucidum and Astragalus in a ratio of 1:1.

A preparation method for producing pork feed rich in omega-3 fatty acids, the steps are as follows:

Step 1: Screening of flaxseed

The oil content of linseed is screened out > 36%, among which the unsaturated fatty acid reaches > 80%, and the linolenic acid > 40%, to remove impurities;

Step 2: Selection of VE

Choose dl-a-tocopheryl acetate, the activity is 50%;

Step 3: Preparation of compound Chinese herbal medicine

Astragalus membranaceus and Ligustrum lucidum were dried (60-65°C) and pulverized, passed through a 40-mesh sieve, and mixed in a ratio of 1:1;

Step 4: Diet formulation

The linseed described in step 1, step 2 and step 3 is used in a ratio of 10%, VE is used in a ratio of 200mg/kg diet, and the compound Chinese herbal medicine is used in a ratio of 1% to prepare a diet formula for fattening pigs;

Reference pig diet formula (%): corn 65.6, soybean meal 11.0, wheat bran 10.0, linseed 10.0, calcium hydrogen phosphate 0.4, stone powder 0.9, salt 0.3, lysine (98%) 0.2, choline chloride (50% ) 0.1, trace element premix 0.2, vitamin premix 0.02, vitamin E (50% active) 0.04, compound Chinese herbal medicine 1.0, zeolite 0.06, a total of 100.0.

Step five: feed preparation

According to the formula described in step 4, the raw materials are pulverized and mixed evenly to make powder.

Embodiment 2: the present invention adds 10% linseed (oil content > 36%～ 45%, of which unsaturated fatty acid > 80%, linolenic acid > 40%). At the same time, VE200/kg was added to the diet. Then add 1% Chinese herbal medicine (coordinated by Ligustrum lucidum and Radix Astragali at a ratio of 1:1. Free feeding, feed to slaughter in the form of powder. Compared with the traditional diet of conventional corn soybean meal, it can improve pig muscle Fat, back fat, abdominal fat, heart and liver fat omega-3 fatty acids 3-7 times. Feeding omega-3 fatty acid-rich pork or lard to rats compared with feeding saturated fatty acid pork or lard, It can reduce the content of low-density lipoprotein cholesterol in rat serum, which is of great significance to the prevention of cardiovascular and cerebrovascular diseases. At the same time, it can improve the antioxidant capacity of rat heart and liver tissue.

Dongbei Min pig is a characteristic local pig breed in Heilongjiang Province. It ranks fourth among local pig breeds in the world. High litter size, strong disease resistance, resistance to rough feeding, and remarkable hybridization effect. The present invention systematically studies flaxseed, and studies the influence of appropriate fat addition amount and addition period on pork quality of min pigs. While rich in high omega-3 unsaturated fatty acids, consumers and sellers can obtain acceptable ideal Meat quality, the purpose of improving pig production efficiency. However, pork rich in omega-3 fatty acids is easily oxidized, and the meat quality problem is also questioned by consumers, and the invention effectively solves this problem at the same time.

Claims (2)

1. the feed of omega-fatty acid pork is rich in a production, it is characterized in that: oil content＞36%～45% of adding 10% in cooperating diet, unrighted acid＞80% wherein, the linseed of leukotrienes＞40%, in diet, add simultaneously the VE200/kg diet, add again 1% cooperate the Chinese herbal medicine that forms by the fruit of glossy privet and the Radix Astragali in 1: 1 ratio.

2. the preparation method of omega-fatty acid pork feed is rich in a production, and it is characterized in that: step is as follows:

Step 1: the screening of linseed

Filter out linseed oil content＞36%, wherein unrighted acid reach＞80%, leukotrienes＞40%, removal of contamination;

The selection of step 2: VE

Select the dl-a-tocopherol acetate for use, active 50%;

Step 3: the preparation of compound Chinese herbal medicine

The Radix Astragali and the fruit of glossy privet are dried the pulverizing of (60～65 ℃) back respectively, cross 40 mesh sieves, mix in 1: 1 ratio;

Step 4: diet recipe

In 10% ratio, VE presses the 200mg/kg diet with step 1, step 2, the described linseed of step 3, and compound Chinese herbal medicine is in 1% ratio modulation growing and fattening pigs diet recipe;

With reference to pig diet recipe (%): corn 65.6, dregs of beans 11.0, wheat bran 10.0, linseed 10.0, calcium monohydrogen phosphate 0.4, stone flour 0.9, salt 0.3, lysine (98%) 0.2, Choline Chloride (50%) 0.1, microelement pre-mix material 0.2, vitamin premix 0.02, vitamin E (50% activity) 0.04, compound Chinese herbal medicine 1.0, zeolite 0.06 adds up to 100.0;

Step 5: diet preparation

Four described prescriptions with evenly mixing after the raw material pulverizing, are made powder set by step.