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

Abstract

The invention relates to a breeding method of feeding non-protective amino acid to early-weaning lambs, feedstuff and a preparation method thereof. The breeding method is realized in a way as follows: starting to feed the non-protective amino acid feedstuff for early-weaning lambs to the lambs after early weaning. The invention changes the traditional concept and breeding method for early-weaninglambs without consideration on the amino acid nutrients. The method of feeding non-protective amino acid to early-weaning lambs can greatly (about 20%) enhance the growth rate of early-weaning fat lambs, and obviously increase the daily gain, carcass weight, meat weight, lean meat weight and lean meat percentage of lambs, thereby proving that the method of directly feeding non-protective amino acid to early-weaning lambs is a simple and effective breeding method for enhancing the lamb productivity. The invention is not only suitable for lambs, but also suitable for oxen, deer, camels and other young ruminant animals.

Description

technical field [0001] 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 [0002] 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 Agricultur...

AI Technical Summary

Problems solved by technology

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 considered young ruminants as adult animals, and did not pay attention to amino acid nutrition. Metabolism is only fed to specially treated amino acids (i.e., 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)

[0004] 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

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