CN101711552B - Breeding method of feeding non-protective amino acid to early-weaning lambs, feedstuff and preparation method thereof - Google Patents

Abstract

A feeding method and feeding feed for early weaned lambs fed with non-protective amino acids and a preparation method thereof; Feeding feed. The present invention changes the traditional concept and feeding method that do not consider amino acid nutrition for early weaned lambs, and can greatly (about 20%) increase the growth rate of early weaned fattened lambs by feeding the early weaned lambs with non-protective amino acid feeding method , and can significantly increase the daily gain, carcass weight, net meat weight, lean meat weight and lean meat percentage of lambs, thus proving that directly feeding non-protective amino acids to lambs after early weaning is a way to improve lamb production Simple and effective feeding methods for performance. In addition to lambs, the present invention is equally applicable to other young ruminants such as cattle, deer, and camels.

Description

Feeding method and feeding feed for early weaned lambs fed with non-protective amino acid and its preparation method

technical field

The invention relates to the technical field of raising early weaned lambs, and relates to a feeding method and feed for early weaned lambs fed with non-protective amino acids (that is, a feed for fed early weaned lambs with non-protected amino acids) and a preparation method thereof.

Background technique

Early weaning is an important aspect to improve the efficiency of meat production. First, because the female animal can be used for the next round of mating after the young animal is weaned, early weaning is one of the important methods to improve the reproductive rate; second, breast milk is important for young animals, Especially for older young animals, their quantity and nutrients may not necessarily meet the nutritional needs of young animals. Only by providing additional corresponding nutrients can young animals grow fastest. Now, lambs are generally weaned at two or three months (Wang Jinwen. Sheep Fat Lamb Production. China Agricultural University Press, Beijing: 2008), and calves are generally weaned at two months. Such a relatively long lactation period obviously improves In addition to the cost, it is not suitable for the effective use of the reproductive characteristics of perennial estrus ewes, and it may not fully develop the growth potential of ruminant young animals. The relatively recognized early weaning time of lambs is 42 days old (Yin Chang'an. Meat sheep in house feeding. China Agricultural University Press, Beijing: 2005). However, regardless of when weaning is followed by providing the animal with adequate nutrition for growth. Therefore, in order to develop intensive meat calves and lamb production methods in agricultural areas and improve the productivity of ruminant young animals, it is necessary to conduct research on the digestive development and nutritional needs of newborn cattle and sheep, especially early weaned cattle and sheep.

In animal production, amino acids, especially lysine and methionine, are generally fed to chickens and pigs to improve animal performance. In fact, the most important nutritional requirement for the growth of young ruminants is also protein amino acid nutrition, but there has been almost no research and practice on feeding untreated or protected important amino acids (ie non-protective amino acids) to young ruminants . One is that the digestive function of young ruminants develops rapidly, which is closely related to the age, and the requirements for the age of the required research animals are relatively high, and the research conditions are not easy to meet; Digestion and metabolism, the added non-protective amino acids will be decomposed in large quantities in the rumen, and cannot reach the posterior digestive tract, so they cannot be absorbed and utilized by animals. Therefore, it is not important to supplement high-quality protein or non-protective amino acids; the third is because of the past Lambs are usually weaned at the age of 3 to 4 months, so researchers subconsciously consider ruminant young animals as adult animals, and do not pay attention to amino acid nutrition. Metabolism is also only fed to specially treated amino acids (ie, protective amino acids), such as metabolizable protected methionine (Klemesrud et al, 2000a, Klemesrud et al, 2000b), rumen-protected lysine coated with polymers, etc. ( Wang Jianhua, Wang Hongrong, Zhang Haiying, et al. Effects of rumen-protective amino acids on nitrogen digestion and metabolism in Inner Mongolia cashmere goats [J]. Journal of Animal Husbandry and Veterinary Medicine, 2006, 37(1): 38-43).

At present, there are no research materials or data publicly reported on the amino acid nutrition of ruminant young animals of different ages, especially after early weaning.

Contents of the invention

The present invention provides a feeding method for feeding non-protective amino acids to early weaned lambs, feeding feed and its preparation method, which overcomes the above-mentioned deficiencies in the prior art, and the present invention changes the traditional concept that amino acid nutrition is not considered for early weaned lambs and feeding method, the growth rate of early weaned and fattened lambs can be greatly improved by adding non-protective amino acid feeding method to early weaned lambs of the present invention, and the daily gain of lambs, carcass weight, net meat weight, lean meat weight and Lean meat percentage has been significantly improved.

One of the technical solutions of the present invention is achieved by the following measures: a feed for feeding non-protective amino acids to early weaned lambs, which consists of 4.5 to 5.5 parts of milk powder and 60 to 75 parts of corn flour in parts by weight of raw materials , 20 to 30 parts of cottonseed meal, 6.5 to 8.5 parts of expanded soybean powder, 2.5 to 3.5 parts of stone powder, 0.09 to 0.11 parts of fish meal, 0.4 to 0.5 parts of large salt, 0.02 to 0.03 parts of vitamin/trace element additives 0.3 to 0.5 parts of sodium sulfate, 1.1 to 1.3 parts of non-protected lysine, 0.03 to 0.04 parts of non-protected methionine, and 0.7 to 0.9 parts of betaine to form the No. 1 early weaning lamb fed non- Feeding feed for protective amino acids.

The second technical solution of the present invention is achieved through the following measures: a feed for feeding non-protective amino acids to early weaned lambs, which consists of 60 to 75 parts of corn flour and 20 to 75 parts of cottonseed meal by weight of raw materials. 30 parts, 6.5 to 8.5 parts of puffed soybean powder, 4.5 to 5.5 parts of corn stalks crushed into 2 cm to 4 cm, 2.5 to 3.5 parts of stone powder, 0.09 to 0.11 parts of fish meal, 0.4 to 0.5 parts of large salt, 0.02 to 0.03 parts of vitamin/trace element additives, 0.3 to 0.5 parts of sodium sulfate, 1.1 to 1.3 parts of non-protected lysine, 0.03 to 0.04 parts of non-protected methionine, and 0.5 to 0.7 parts of betaine. No. 2 early weaned lambs were fed non-protective amino acid feed.

The third technical solution of the present invention is achieved by the following measures: a kind of feed for feeding non-protective amino acids to early weaned lambs, which consists of 60 to 75 parts of corn flour and 18 to 75 parts of cottonseed meal by weight of raw materials. 22 parts, 5 to 7 parts of puffed soybean powder, 14 to 18 parts of corn stalks crushed into 2 cm to 4 cm, 1.3 to 1.5 parts of stone powder, 0.09 to 0.11 parts of fish meal, 0.4 to 0.5 parts of large salt, 0.02 to 0.03 parts of vitamin/trace element additives, 0.3 to 0.5 parts of sodium sulfate, 0.7 to 0.9 parts of non-protected lysine, and 0.3 to 0.5 parts of betaine are used to feed non-protected No. 3 early weaned lambs Amino acid feed.

The fourth technical solution of the present invention is achieved by the following measures: a kind of feed for feeding non-protective amino acids to early weaned lambs, which consists of 60 to 75 parts of corn flour and 9.5 to 75 parts of cottonseed meal by weight of raw materials. 11.5 parts, 2.5 to 3.5 parts of puffed soybean powder, 28 to 35 parts of corn stalks crushed into 2 cm to 4 cm, 0.43 to 0.53 parts of urea, 1.2 to 1.4 parts of stone powder, 0.09 to 0.11 parts of fish meal, large 0.4 to 0.5 parts of salt, 0.02 to 0.03 parts of vitamin/trace element additives, 0.3 to 0.5 parts of sodium sulfate, 0.3 to 0.5 parts of non-protective lysine, and 0.1 to 0.3 parts of betaine are No. 4 Early weaned lambs were fed non-protective amino acid feed.

The fifth technical solution of the present invention is achieved by the following measures: a method for preparing feed for feeding non-protective amino acids to the above-mentioned early weaned lambs, which is carried out according to the following steps: first prepare the required amount of milk powder, corn Flour, cottonseed meal, puffed soybean powder, urea, stone powder, fish meal, large salt, vitamin/trace element additive, sodium sulfate, non-protected lysine, non-protected methionine, betaine, mix evenly, and then add the required amount The pulverized corn stalks are evenly mixed to obtain the feed for early-weaned lambs fed with non-protective amino acids.

The sixth technical solution of the present invention is achieved by the following measures: a method for preparing a feed for feeding non-protective amino acids to the above-mentioned early weaned lambs, which is carried out according to the following steps: the required amount of milk powder, corn flour , cottonseed meal, puffed soybean powder, crushed corn stalks, urea, stone powder, fish meal, large salt, vitamin/trace element additives, sodium sulfate, non-protected lysine, non-protected methionine, and betaine Early weaned lambs were fed non-protective amino acid feed.

The seventh technical solution of the present invention is achieved by the following measures: a feeding method for early weaned lambs fed with non-protective amino acids by using the above-mentioned early weaned lambs fed with non-protective amino acid feeding feed, which follows the steps Proceed: After the lambs are weaned, start to feed the early weaned lambs with non-protective amino acid feeding feed. The specific steps of feeding the early weaned lambs with non-protective amino acid feeding feeds are as follows: when the lambs are 22 days to 40 days old No. 1 early weaned lambs fed 150 g to 473 g per day during the first day were fed non-protective amino acid feeding feed; lambs were fed 481 to 797 g per day during the period of 41 days to 80 days. The weaned lambs were fed feeds with non-protective amino acids; the third early weaned lambs were fed with feeds with non-protected amino acids from 81 days to 120 days of age; No. 4 early weaned lambs fed 1099 to 1773 grams per day between 121 days and 240 days old were fed non-protective amino acid feed.

The eighth technical solution of the present invention is achieved through the following measures: a feeding feed using the above-mentioned early weaned lambs fed with non-protective amino acids is applied to the feeding method of early weaned lambs fed with non-protected amino acids.

The ninth technical solution of the present invention is achieved through the following measures: the application of feed containing essential amino acids without any special protection treatment (ie non-protective amino acids) in the feeding method of early weaned lambs.

Technical effects of the present invention: the present invention changes the traditional concept and feeding method that do not consider amino acid nutrition to early weaned lambs, and can greatly (about 20%) improve early weaned lambs through the present invention's early weaned lambs feeding non-protective amino acid feeding method. The growth rate of weaned and fattened lambs can be significantly improved, and the daily gain, carcass weight, net meat weight, lean meat weight and lean meat percentage of lambs can be significantly improved, thus proving that feeding non-protective lysine directly to early weaned lambs Acid is a simple and effective feeding method to improve lamb performance. At the same time, because the lambs are weaned early, it is conducive to the next round of mating of the female animals, thereby increasing the reproductive rate. Except for lambs, since cattle, deer, camels and other ruminants all have rumens, their digestion characteristics are also all the same, so the present invention is also applicable to other ruminant young animals such as cattle, deer and camels.

Detailed ways

The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions and actual conditions of the present invention.

Example 1, the early weaned lambs are fed with non-protective amino acid feed (i.e. the ration of the present invention) by weight of raw materials from 4.5 parts to 5.5 parts of milk powder, 60 parts to 75 parts of corn flour, 20 parts of cottonseed meal to 30 parts, expanded soybean powder 6.5 to 8.5 parts, stone powder 2.5 to 3.5 parts, fish meal 0.09 to 0.11 parts, large salt 0.4 to 0.5 parts, vitamin/trace element additives 0.02 to 0.03 parts, sodium sulfate 0.3 parts to 0.5 parts, 1.1 to 1.3 parts of non-protected lysine, 0.03 to 0.04 parts of non-protected methionine, and 0.7 to 0.9 parts of betaine to form the first feeding feed for early weaned lambs fed with non-protected amino acids (i.e. the diet of the present invention).

Embodiment 2, this early weaned lamb is fed with non-protective amino acid feeding feed (i.e. the ration of the present invention) by weight of raw materials by 4.5 parts or 5.5 parts of milk powder, 60 parts or 75 parts of corn flour, 20 parts of cottonseed meal Or 30 parts, 6.5 parts or 8.5 parts of expanded soybean powder, 2.5 parts or 3.5 parts of stone powder, 0.09 or 0.11 parts of fish meal, 0.4 or 0.5 parts of large salt, 0.02 or 0.03 parts of vitamin/trace element additives, 0.3 parts of sodium sulfate or 0.5 parts, 1.1 or 1.3 parts of non-protected lysine, 0.03 or 0.04 parts of non-protected methionine, 0.7 or 0.9 parts of betaine, which is the first feed for early weaned lambs fed with non-protected amino acids (i.e. the diet of the present invention).

Embodiment 3, this early weaned lamb is fed with non-protective amino acid feeding feed (i.e. the ration of the present invention) by weight of raw materials from 60 parts to 75 parts of corn flour, 20 parts to 30 parts of cottonseed meal, expanded soybean meal 6.5 to 8.5 parts, 4.5 to 5.5 parts of corn stalks crushed into 2 cm to 4 cm, 2.5 to 3.5 parts of stone powder, 0.09 to 0.11 parts of fish meal, 0.4 to 0.5 parts of large salt, 0.02 parts of vitamin/trace element additives 0.03 to 0.03 parts, 0.3 to 0.5 parts of sodium sulfate, 1.1 to 1.3 parts of non-protected lysine, 0.03 to 0.04 parts of non-protected methionine, and 0.5 to 0.7 parts of betaine to form the second early weaned lamb Add the feedstuff (ie the diet of the present invention) of non-protective amino acid.

Example 4, the early weaned lambs are fed non-protective amino acid feed (i.e. the ration of the present invention) by weight of raw materials by 60 parts or 75 parts of corn flour, 20 parts or 30 parts of cottonseed meal, expanded soybean meal 6.5 or 8.5 parts, 4.5 or 5.5 parts of corn stalks crushed into 2 cm to 4 cm, 2.5 or 3.5 parts of stone powder, 0.09 or 0.11 parts of fish meal, 0.4 or 0.5 parts of large salt, 0.02 parts of vitamin/trace element additives or 0.03 parts, 0.3 or 0.5 parts of sodium sulfate, 1.1 or 1.3 parts of non-protected lysine, 0.03 or 0.04 parts of non-protected methionine, and 0.5 or 0.7 parts of betaine to form the second early weaned lamb Add the feedstuff (ie the diet of the present invention) of non-protective amino acid.

Example 5, the early weaned lambs are fed with non-protective amino acid feed (i.e. the ration of the present invention) by weight of raw materials from 60 to 75 parts of corn flour, 18 to 22 parts of cottonseed meal, expanded soybean meal 5 to 7 parts, 14 to 18 parts of corn stalks crushed into 2 cm to 4 cm, 1.3 to 1.5 parts of stone powder, 0.09 to 0.11 parts of fish meal, 0.4 to 0.5 parts of large salt, 0.02 parts of vitamin/trace element additives part to 0.03 part, 0.3 part to 0.5 part of sodium sulfate, 0.7 part to 0.9 part of non-protective lysine, and 0.3 part to 0.5 part of betaine to form the feeding feed ( Namely the diet of the present invention).

Embodiment 6, this early weaned lamb is fed with non-protective amino acid feeding feed (i.e. the ration of the present invention) by weight of raw materials by 60 parts or 75 parts of corn flour, 18 parts or 22 parts of cottonseed meal, expanded soybean meal 5 or 7 parts, 14 or 18 parts of corn stalks crushed into 2 cm to 4 cm, 1.3 or 1.5 parts of stone powder, 0.09 or 0.11 parts of fish meal, 0.4 to 0.5 parts of large salt, 0.02 parts of vitamin/trace element additives 0.03 part to 0.3 part, 0.3 part or 0.5 part of sodium sulfate, 0.7 part or 0.9 part of non-protective lysine, 0.3 part or 0.5 part of betaine to form the feeding feed for No. 3 early weaned lambs feeding non-protective amino acid ( Namely the diet of the present invention).

Example 7, the early weaned lambs are fed with non-protective amino acid feed (i.e. the ration of the present invention) by weight of raw materials from 60 parts to 75 parts of corn flour, 9.5 parts to 11.5 parts of cottonseed meal, expanded soybean meal 2.5 to 3.5 parts, 28 to 35 parts of corn stalks crushed into 2 cm to 4 cm, 0.43 to 0.53 parts of urea, 1.2 to 1.4 parts of stone powder, 0.09 to 0.11 parts of fish meal, 0.4 to 0.5 parts of large salt , 0.02 to 0.03 parts of vitamin/trace element additives, 0.3 to 0.5 parts of sodium sulfate, 0.3 to 0.5 parts of non-protective lysine, and 0.1 to 0.3 parts of betaine to form the fourth early weaning lamb feeding non- The feeding feed of protective amino acids (ie the diet of the present invention).

Example 8, the early weaned lambs were fed with non-protective amino acid feed (i.e. the ration of the present invention) by weight of raw materials by 60 parts or 75 parts of corn flour, 9.5 parts or 11.5 parts of cottonseed meal, expanded soybean meal 2.5 or 3.5 parts, 28 or 35 parts of corn stalks crushed into 2 cm to 4 cm, 0.43 or 0.53 parts of urea, 1.2 or 1.4 parts of stone powder, 0.09 or 0.11 parts of fish meal, 0.4 or 0.5 parts of large salt , 0.02 or 0.03 parts of vitamin/trace element additives, 0.3 or 0.5 parts of sodium sulfate, 0.3 or 0.5 parts of non-protective lysine, and 0.1 or 0.3 parts of betaine are the fourth early weaned lambs fed non- The feeding feed of protective amino acids (ie the diet of the present invention).

Embodiment 9, the feeding feed (i.e. the ration of the present invention) of the early weaned lambs of the above-mentioned embodiments 1 to 8 fed with non-protective amino acids is obtained by the following preparation method: earlier the required amount of milk powder, corn flour , cottonseed meal, puffed soybean powder, urea, stone powder, fish meal, large salt, vitamin/trace element additive, sodium sulfate, non-protected lysine, non-protected methionine, betaine, mix well, and then add the required amount The pulverized corn stalks are evenly mixed to obtain the feeding feed (that is, the ration of the present invention) for early-weaned lambs fed with non-protective amino acids.

Embodiment 10, the feeding feed (i.e. the ration of the present invention) of the early weaned lambs of the above-mentioned embodiments 1 to 8 fed with non-protective amino acids is obtained by the following preparation method: the required amount of milk powder, corn flour, Cottonseed meal, puffed soybean flour, corn stover crushed to 2cm to 4cm, urea, rock powder, fish meal, large salt, vitamin/trace element additives, sodium sulfate, unprotected lysine, unprotected methionine, sugar beets The alkali is mixed evenly to obtain the feeding feed (i.e. the ration of the present invention) for the early weaned lambs fed with non-protective amino acids.

Embodiment 11, the feeding method of adding non-protective amino acids to the early weaned lambs is carried out according to the following steps: After the lambs are weaned, start to add the feedstuffs that add non-protective amino acids to the early weaned lambs, and specifically feed the early weaned lambs The feeding steps of feeding non-protective amino acids to lambs are as follows: during the period of 22 days to 40 days in age of lambs, the No. 1 early weaning lambs fed with 150 grams to 473 grams of feeding feeds feeding non-protecting amino acids every day (i.e. this The ration of invention); During lamb age 41 days to 80 days, feed the second early weaning lamb of No. 481 gram to 797 gram every day and add the raising feed (being ration of the present invention) of non-protective amino acid; During lamb age 81 days to 120 days, feed the third early weaning lamb of 804 grams to 1096 grams every day and add the feedstuff (i.e. the diet of the present invention) of non-protective amino acid; In lamb age 121 days to 240 days No. 4 early weaned lambs fed with 1099 grams to 1773 grams every day during the day were fed with non-protective amino acid feed (ie the ration of the present invention).

Embodiment 12, the feeding method of feeding non-protective amino acids to the early weaned lambs is carried out according to the following steps: feed the first No. Feed the feeding feed (i.e. the diet of the present invention) of non-protective amino acid; During lamb age 41 days to 80 days, feed the second early weaning lamb of No. 481 gram to 797 gram every day and add the feeding of non-protective amino acid Feed (i.e. the diet of the present invention); feed the No. 3 early weaned lambs of 804 grams to 1096 grams every day during the lamb's age of 81 days to 120 days and add the feeding feed (i.e. the daily diet of the present invention) of non-protective amino acids. Grain); during lamb age 121 days to 240 days, feed the No. 4 early weaning lamb of 1099 grams to 1773 grams every day and add the feedstuff (being the ration of the present invention) of non-protective amino acid.

In the present invention: the vitamin and trace element additives are products formulated in accordance with the US NRC Lamb Feeding Standard (1985), and can be prepared by themselves or purchased from the market. % are all percentages by weight.

Below is technical effect test of the present invention:

Experiment 1. Effect of feeding non-protective lysine on free feed intake of lambs

The effect of feeding different doses of non-protective lysine on the free feed intake of lambs (that is, the feed fed every day, except for the different doses of non-protective lysine (Lys), other raw materials and their feed The amount is the same, in this case, the effect on the lamb's ad libitum intake). According to the development of the lamb's digestive function, lambs of 60-80 days of age with a faster weight gain and 120-140 days of age with a higher digestibility of corn stalks were selected for experiments to reflect the different ages and different diets. Effects of feeding non-protective lysine under conditions.

Ad libitum intake refers to the amount of ration an animal can eat under the condition of feeding enough ration. High feed intake is positively correlated with high animal performance. Dietary feed intake is generally expressed as the amount of dry matter or organic matter consumed. Dry matter refers to other substances in the diet except water, and organic matter refers to other substances in the diet except water and minerals.

The specific feed intake and the effect of feeding non-protective lysine on the feed intake of 60-80-day-old and 120-140-day-old lambs are shown in Table 1. The feed intake of lambs in the two phases was highest when the non-protective lysine was fed at 1.2% and 0.4%, respectively. The dry matter and organic matter feed intake of 60-80 day-old lambs increased by 10.5% and 5.9% respectively compared with the control; the dry matter and organic matter feed intake of 120-140-day-old lambs both increased by 15.0% compared with the control.

Experiment 2. The effect of feeding non-protective lysine on the digestibility of lamb diets

The effect of feeding different doses of non-protective lysine on the digestibility of lamb diets (that is, the feed fed every day, except for the different doses of non-protective lysine (Lys), other raw materials and their feed The amount is the same, in this case, the effect on the digestibility of the lamb diet). According to the development of the lamb's digestive function, lambs of 60-80 days of age with a faster weight gain and 120-140 days of age with a higher digestibility of corn stalks were selected for experiments to reflect the different ages and different diets. Effects of feeding non-protective lysine under conditions.

The digestibility of diet refers to the proportion of the diet consumed by animals that is digested and absorbed in the digestive tract. The digestion of diet is generally expressed by the digestion of nutrients such as dry matter, organic matter, crude protein, etc., without considering the premise of endogenous influence The following calculation method is: the digestibility of a certain nutrient = (the amount of a certain nutrient consumed - the amount of a certain nutrient excreted in the feces) / the amount of a certain nutrient consumed.

The dietary digestibility of 60-80-day-old lambs all increased with the feeding of non-protective lysine (Table 2), but the range was not large, and the dry matter, organic matter, crude protein, cellulose, and hemicellulose Compared with the control, the digestibility of energy, calcium and phosphorus increased by 2.1% (P>0.05), 4.1% (P<0.01), 3.1% (P>0.05), 4.1% (P>0.05), 6.9 % (P<0.01), 3.0% (P<0.01), 6.1% (P>0.05) and 4.0% (P>0.05). From the perspective of different levels of addition, the effect is relatively good at 1.2%.

For 120-140-day-old lambs, the digestibility of the diet was only affected at the addition of 0.4% (Table 3), but the range was not large. The dry matter, organic matter, crude protein, cellulose, and hemicellulose and energy digestibility increased by 3.5% (P>0.0), 3.9% (P>0.05), 4% (P<0.01), 7.5% (P>0.05), 1.5% (P>0.05), 3.3% ( P<0.01).

Experiment 3. The effect of feeding non-protective lysine on the digestibility of lamb diet

The effect of feeding different doses of non-protective lysine on the digestibility of lamb diets (that is, the feed fed every day, except for the different doses of non-protective lysine (Lys), other raw materials and their feed The amount is the same, in this case, the effect on the digestibility of the lamb diet). According to the development of the lamb's digestive function, lambs of 60-80 days of age with a faster weight gain and 120-140 days of age with a higher digestibility of corn stalks were selected for experiments to reflect the different ages and different diets. Effects of feeding non-protective lysine under conditions.

The digestibility of the diet refers to the amount of the diet consumed by the animal that is digested and absorbed in the digestive tract. Digestion of the diet is generally expressed by the digestion of nutrients such as dry matter, organic matter, crude protein, etc., without considering the premise of endogenous influence The following calculation method is: the digestibility of a certain nutrient = the amount of a certain nutrient ingested - the amount of a certain nutrient excreted in the feces.

Experiments have shown that feeding non-protective lysine can increase the dietary digestibility of 60-80-day-old lambs (Table 4), but the effect is more obvious when feeding 1.2% level, of which dry matter, organic matter, crude protein, The digestibility of cellulose, hemicellulose, digestible energy and calcium increased by 8.2% (P<0.05), 10.3% (P<0.01), 14.8% (P<0.05), 10.8% (P>0.05) respectively compared with the control group ), 13.2% (P<0.01), 9.0% (P<0.05) and 12.4% (P<0.05). However, when the non-protective lysine feeding rate continued to increase to 1.8%, the digestibility of the diet tended to decrease.

As shown in Table 5, feeding different levels of non-protective lysine to 120-140-day-old lambs can also increase the digestibility of the diet, especially when feeding 0.4% level, the dry matter, organic matter, crude protein , cellulose, hemicellulose, digestible energy, calcium and phosphorus digestibility increased by 19.1% (P<0.01), 16.8% (P<0.01), 22.9% (P<0.01), 24.0% (P<0.01 ), 16.8% (P<0.01), 18.8% (P<0.01), 16.8% (P<0.05) and 13.4% (P<0.05).

Experiment 4. Effect of feeding non-protective lysine on the retention rate (amount) and energy digestion of lamb nitrogen, phosphorus and calcium

The effect of feeding different doses of non-protective lysine on the retention of nitrogen, phosphorus and calcium and energy digestion of lambs (ie: the feed fed every day, except for the different doses of non-protective lysine (Lys) In addition, other raw materials and their feed amounts are the same, in this case, the impact on the retention and energy digestion of lamb nitrogen, phosphorus and calcium). According to the development of the lamb's digestive function, lambs of 60-80 days of age with a faster weight gain and 120-140 days of age with a higher digestibility of corn stalks were selected for experiments to reflect the different ages and different diets. Effects of feeding non-protective lysine under conditions.

The retained amount of a certain nutrient generally refers to the amount ingested by the animal minus the amount excreted from feces and urine. The larger the retained amount, the more accumulated in the animal body. The retention rate refers to the ratio of the retention amount to the food intake. The higher the retention rate, the higher the utilization rate of the animal's diet.

The effect of feeding non-protective lysine on the nutrient metabolism of 60-80-day-old lambs is shown in Table 6. Feeding non-protective lysine increased the nitrogen intake of lambs by 8-9% (P<0.01), but had no significant effect on the excretion of fecal nitrogen, and the excretion of urine nitrogen was between 1.2% and 1.8%. Feeding levels, lower than or equal to the output of the control group. Feeding non-protective lysine significantly increased the nitrogen retention and retention rate of animals, and it was the highest at 1.2% feeding level, which increased by 35.8% (P<0.05) and 22.0% (P<0.05) respectively compared with the control group .

The digestible energy obtained by lambs also increased with the feeding of non-protective lysine, and it was the highest when feeding 1.2%, an increase of 9% (P<0.01).

As shown in Table 7, when 120-140-day-old lambs were fed with different levels of non-protected lysine, the nitrogen retention and retention rate increased with the increase in the amount of non-protected lysine, and the addition level was 0.4 % was the highest, respectively increased by 32.8% (P<0.05) and 12.5% (P<0.01) compared with the control. Digestible energy was also the highest at 0.4%, which was 18.7% (P<0.01). There was no significant difference in the retention of calcium and phosphorus (P>0.05).

Test five, the present invention is to the impact of slaughtered lamb carcass quality

Experiment on the effect of the feeding method of early weaned lambs fed with non-protective amino acids and the feeding method of the control group without feeding amino acids on the carcass quality of slaughtered lambs

Test object: Small-tailed Han sheep and hornless Dorset hybrid lamb.

The lambs are fed in the whole house, and they are fed once at about 8:00 in the morning and at about 18:00 in the evening. Free access to food and water.

Control group: the feeding method of the control group without feeding amino acids. In the feeding method of the control group without feeding amino acids, the feed of the control group refers to: except that amino acid raw materials are not added, other raw materials have the same composition.

The group of the present invention: a feeding method of feeding non-protective amino acids to early weaned lambs of the present invention.

The difference between the group of the present invention and the control group is that: on the basis of the diet of the control group, required amounts of non-protective lysine and non-protective methionine are added.

As can be seen from Table 8, compared with the matched group, the lamb body weight, carcass weight, net meat weight, lean meat weight and lean meat percentage of the present invention group all have obvious improvement (P＜0.01), and the fat weight has no Significant difference (P>0.05), see Table 1 for details.

The present invention adds the feeding feed of four kinds of early weaning lambs formulated with non-protective amino acids and feeds non-protective amino acids, and is used for feeding early weaning lambs at the age of 22 days to 240 days. left and right) to increase lamb nitrogen retention and increase body weight, so that the daily gain, carcass weight, net meat weight, lean meat weight and lean meat percentage of lambs were all significantly improved, thus proving that feeding non- Protective amino acids, a simple and effective feeding method to improve lamb performance.

Claims (10)

1. an early weaning lamb is added the culturing feed of feeding non-protective amino acid, it is characterized in that by parts by weight of raw materials by 4.5 parts to 5.5 parts of milk powder; 60 parts to 75 parts of corn flour; 20 parts to 30 parts of the cotton benevolence dregs of rice; 6.5 parts to 8.5 parts of soy bean powders; 2.5 parts to 3.5 parts of stone flours; 0.09 part to 0.11 part of fish meal; 0.4 part to 0.5 part of crude salt; 0.02 part to 0.03 part of vitamin and trace mineral supplement; 0.3 part to 0.5 part in sodium sulphate; 1.1 parts to 1.3 parts of non-protective lysines; 0.03 part to 0.04 part of non-protective methionine; 0.7 part to 0.9 part of betaine consists of the culturing feed that number one early weaning lamb is added feeding non-protective amino acid.

2. an early weaning lamb is added the culturing feed of feeding non-protective amino acid, it is characterized in that by parts by weight of raw materials by 60 parts to 75 parts of corn flour; 20 parts to 30 parts of the cotton benevolence dregs of rice; 6.5 parts to 8.5 parts of soy bean powders; be ground into 2 centimetres to 4 centimetres 4.5 parts to 5.5 parts of maize straws; 2.5 parts to 3.5 parts of stone flours; 0.09 part to 0.11 part of fish meal; 0.4 part to 0.5 part of crude salt; 0.02 part to 0.03 part of vitamin and trace mineral supplement; 0.3 part to 0.5 part in sodium sulphate; 1.1 parts to 1.3 parts of non-protective lysines; 0.03 part to 0.04 part of non-protective methionine; 0.5 part to 0.7 part of betaine consists of the culturing feed that No. second early weaning lamb added feeding non-protective amino acid.

3. an early weaning lamb is added the culturing feed of feeding non-protective amino acid, it is characterized in that by parts by weight of raw materials by 60 parts to 75 parts of corn flour; 18 parts to 22 parts of the cotton benevolence dregs of rice; 5 parts to 7 parts of soy bean powders; be ground into 2 centimetres to 4 centimetres 14 parts to 18 parts of maize straws; 1.3 parts to 1.5 parts of stone flours; 0.09 part to 0.11 part of fish meal; 0.4 part to 0.5 part of crude salt; 0.02 part to 0.03 part of vitamin and trace mineral supplement; 0.3 part to 0.5 part in sodium sulphate; 0.7 part to 0.9 part of non-protective lysine; 0.3 part to 0.5 part of betaine consists of the culturing feed that No. three early weaning lamb added feeding non-protective amino acid.

4. an early weaning lamb is added the culturing feed of feeding non-protective amino acid, it is characterized in that by parts by weight of raw materials by 60 parts to 75 parts of corn flour; 9.5 parts to 11.5 parts of the cotton benevolence dregs of rice; 2.5 parts to 3.5 parts of soy bean powders; be ground into 2 centimetres to 4 centimetres 28 parts to 35 parts of maize straws; 0.43 part to 0.53 part in urea; 1.2 parts to 1.4 parts of stone flours; 0.09 part to 0.11 part of fish meal; 0.4 part to 0.5 part of crude salt; 0.02 part to 0.03 part of vitamin and trace mineral supplement; 0.3 part to 0.5 part in sodium sulphate; 0.3 part to 0.5 part of non-protective lysine; 0.1 part to 0.3 part of betaine consists of the culturing feed that No. four early weaning lamb added feeding non-protective amino acid.

5. preparation early weaning lamb claimed in claim 1 method of adding the culturing feed of feeding non-protective amino acid is characterized in that carrying out in the steps below: milk powder, corn flour, the cotton benevolence dregs of rice, soy bean powder, stone flour, fish meal, crude salt, vitamin and trace mineral supplement, sodium sulphate, non-protective lysine, non-protective methionine, the betaine of requirement mixed namely get the culturing feed that the early weaning lamb is added feeding non-protective amino acid first.

6. prepare the method that early weaning lamb claimed in claim 2 is added the culturing feed of feeding non-protective amino acid for one kind; it is characterized in that carrying out in the steps below: first the corn flour of requirement, the cotton benevolence dregs of rice, soy bean powder, stone flour, fish meal, crude salt, vitamin and trace mineral supplement, sodium sulphate, non-protective lysine, non-protective methionine, betaine are mixed, the maize straw that adds again the pulverizing of requirement mixes and namely gets the culturing feed that the early weaning lamb is added feeding non-protective amino acid.

7. prepare the method that early weaning lamb claimed in claim 3 is added the culturing feed of feeding non-protective amino acid for one kind; it is characterized in that carrying out in the steps below: first the corn flour of requirement, the cotton benevolence dregs of rice, soy bean powder, stone flour, fish meal, crude salt, vitamin and trace mineral supplement, sodium sulphate, non-protective lysine, betaine are mixed, the maize straw that adds again the pulverizing of requirement mixes and namely gets the culturing feed that the early weaning lamb is added feeding non-protective amino acid.

8. prepare the method that early weaning lamb claimed in claim 4 is added the culturing feed of feeding non-protective amino acid for one kind; it is characterized in that carrying out in the steps below: first the corn flour of requirement, the cotton benevolence dregs of rice, soy bean powder, urea, stone flour, fish meal, crude salt, vitamin and trace mineral supplement, sodium sulphate, non-protective lysine, betaine are mixed, the maize straw that adds again the pulverizing of requirement mixes and namely gets the culturing feed that the early weaning lamb is added feeding non-protective amino acid.

9. an early weaning lamb that utilizes claim 1 or 2 or 3 or 4 described early weaning lambs to add the culturing feed of feeding non-protective amino acid is added the method for breeding of feeding non-protective amino acid, it is characterized in that carrying out in the steps below: begin to add after lamb wean and feed the culturing feed that this early weaning lamb is added feeding non-protective amino acid, the step of culturing feed that the early weaning lamb of specifically feeding is added feeding non-protective amino acid is as follows: 150 grams of feeding add the culturing feed of feeding non-protective amino acid every day to the number one early weaning lambs of 473 grams during 22 days to 40 days at the lamb age in days; 481 grams to No. second early weaning lambs of 797 grams of feeding are added the culturing feed of feeding non-protective amino acid every day during 41 days to 80 days at the lamb age in days; 804 grams to No. three early weaning lambs of 1096 grams of feeding are added the culturing feed of feeding non-protective amino acid every day during 81 days to 120 days at the lamb age in days; 1099 grams to No. four early weaning lambs of 1773 grams of feeding are added the culturing feed of feeding non-protective amino acid every day during 121 days to 240 days at the lamb age in days.

10. one kind is utilized the in early days application in the weaned lamb method for breeding of culturing feed that claim 1 or 2 or 3 or 4 described early weaning lambs add feeding non-protective amino acid.