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Low nitrogen discharge daily ration for growing-finishing pig and application thereof

A nitrogen emission, non-starch polysaccharide enzyme technology, applied in the application, animal feed, additional food elements, etc., can solve the problems of reducing the digestibility and activity of plant proteins and amino acids, and achieving intramuscular fat content. Meat ratio, the effect of saving high-quality protein resources

Active Publication Date: 2018-11-20
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that the absorption rate of additional synthetic amino acids in low-nitrogen emission diets is much higher than that of amino acids in plant proteins, so the stimulation to the intestines is small, so the activity of some protein-digesting enzymes may be reduced, and at the same time reduce Digestibility of plant proteins and amino acids in the diet

Method used

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  • Low nitrogen discharge daily ration for growing-finishing pig and application thereof
  • Low nitrogen discharge daily ration for growing-finishing pig and application thereof
  • Low nitrogen discharge daily ration for growing-finishing pig and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1. Effects of NCG and NSP enzyme supplementation in low nitrogen emission diets on pig growth performance, meat quality traits and nutrient digestibility

[0048] 1 Materials and methods

[0049] 1.1 Experimental animals and diet

[0050] Select 360 healthy Duchangda ternary hybrid commercial pigs (the initial weight is about 25kg), half male and female, randomly divided into 5 dietary treatments, each treatment has 6 pigs, each pig is a replicate, and each replicate 12 pigs. The experimental period was divided into three stages: growth period (25-60kg), early fattening (60-90kg) and late fattening (90-110kg).

[0051] The experiment adopted a single-factor completely randomized design, and the diets in each stage were divided into 5 treatments. NSP enzyme group 1 (LPNN1), low nitrogen emission diet+NCG+NSP enzyme group 2 (LPNN2), low nitrogen emission diet+NCG+NSP enzyme group 3 (LPNN3), LPNN1 group was the LP group diet at each stage 0.09% NCG and 0.01% NS...

Embodiment 2

[0129] Example 2. Effects of low nitrogen emission diets on intestinal nutrient digestibility and digestive enzyme activity of growing pigs

[0130] 1 Experiment design and diet

[0131] 10 growing pigs (48.5±2.9) kg were randomly divided into 5 groups, each group had 2 replicates, and the metabolic cages were raised in a single cage. The experiment used a 5 × 3 Yaodon square design, with a total of 5 diets and 3 experimental periods, with a total of 6 replicates for each diet. Each experimental period included a 5-day pre-feeding period and a 5-day fecal and urine collection period.

[0132] Twelve (49.8±3.5) kg growing pigs with ileal T-type fistula were randomly divided into 6 groups, with 2 replicates in each group, and the metabolic cages were raised in a single cage. The experiment used a 6 × 3 Yaodon square design, with a total of 6 diets and 3 experimental periods, with a total of 6 replicates for each diet. Each of these experimental periods consisted of a 5-day pr...

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Abstract

The invention discloses a low nitrogen discharge daily ration. The low nitrogen discharge daily ration comprises the following components according to the weight percentage: 0.07-0.09 % N-carbamylglutamic acid (NCG) and 0.01-0.03 % non-starch polysaccharide (NSP) enzyme. The low nitrogen discharge daily ration disclosed by the invention has the advantages that the N-carbamylglutamic acid and the non-starch polysaccharideenzyme in the daily ration have a synergistic effect, the growing performance, the nutrient digestibility, the carcass quality and the meat quality of a pig can be improved, the usage of a protein feed in the daily ration can also be reduced by 6-9 percentage points on the basis of reducing the protein level of the daily ration by 2-3 percentage points, good protein resources are saved, the utilization efficiency of protein in the daily ration is increased, and the feed cost is reduced.

Description

technical field [0001] The invention relates to the field of animal husbandry feed, in particular to a low nitrogen emission ration for growing and finishing pigs and its application. Background technique [0002] Dietary protein is very important to the health of the carcass and the best growth and production performance. The demand for protein (Crude protein, CP) of pigs is actually the demand for amino acids. Development, shortage of high-quality protein raw materials, prohibition of antibiotics, and the emphasis on environmental pollution of livestock and poultry breeding in my country's new environmental protection law, low-nitrogen emission diets have always been a research hotspot in the field of animal nutrition in my country. [0003] At present, research on low-nitrogen emission diets mainly focuses on pig production performance and intestinal health, and less attention is paid to the impact of low-nitrogen emission balanced amino acid diets on the digestibility of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/30A23K10/37A23K20/142A23K20/189A23K20/26A23K50/30
CPCA23K10/30A23K10/37A23K20/142A23K20/189A23K20/26A23K50/30Y02P60/87
Inventor 谯仕彦王钰明曾祥芳周俊言于海涛舒丹平王德辉
Owner CHINA AGRI UNIV
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