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Daily ration with low nitrogen emission in later stage of finishing pigs with weight being 90-120kg

A technology for nitrogen discharge and fattening pigs, applied in animal feed, additional food elements, animal feed, etc., can solve problems such as amino acid imbalance, no recommended amino acid value in the late fattening period, and inhibit normal growth of animals, so as to improve utilization efficiency Effect

Inactive Publication Date: 2014-09-17
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, it is necessary to supplement synthetic amino acids to ensure the normal growth performance of pigs, and excessive addition will most likely cause an imbalance of amino acids in the diet, thereby inhibiting the feed intake of animals and inhibiting the normal growth of animals
Therefore, it is very important to grasp the optimal requirement of essential amino acids when formulating low-nitrogen emission diets. The current nutritional standards do not give recommended values ​​for the nutritional requirements of amino acids in the late finishing period. There are few relevant literatures, especially the systematic research on 90-120 kg finishing pigs under the net energy system is seldom reported

Method used

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  • Daily ration with low nitrogen emission in later stage of finishing pigs with weight being 90-120kg
  • Daily ration with low nitrogen emission in later stage of finishing pigs with weight being 90-120kg
  • Daily ration with low nitrogen emission in later stage of finishing pigs with weight being 90-120kg

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1. Effects of standard ileal digestible lysine levels on growth performance, serum urea nitrogen and carcass quality of 90-120kg fattening pigs under the condition of low nitrogen discharge diet

[0031] 1.1 Experimental animals and experimental diets

[0032] Select 108 Duroc × Changbai × Large White Sanyuan healthy finishing sows with an initial body weight of 90 kg, and randomly divide them into 6 treatments, each treatment has 6 repetitions, and each repetition (column) has 3 pigs, and the test period is 30 days . The experimental diet was based on standard ileal digestible amino acids, and the net energy level was uniformly 2.48Mcal / kg. 0.67% and 0.73%; sulfur-containing amino acids, threonine, tryptophan, valine and isoleucine meet 110% of the NRC (2012) recommended ratio, and the rest of the nutrients meet or exceed the NRC (2012) recommended value.

[0033] 1.2 Feeding management

[0034] The experiment was carried out in the experimental pig farm of ...

Embodiment 2

[0085] Example 2. Verifying the optimal ratio of threonine and lysine in the standard ileum of 90-120 kg finishing pigs under the condition of low nitrogen emission diet

[0086] 1.1 Experimental animals and experimental diets

[0087] Select 90 Duroc × Landrace × Large White Sanyuan healthy finishing sows with an initial body weight of 90 kg, and randomly divide them into 5 treatments, each treatment has 6 repetitions, and each repetition (column) has 3 pigs, and the test period is 30 days . The experimental diet was based on standard ileal digestible amino acids, the net energy level was uniformly 2.48Mcal / kg, and the SID Thr / Lys in the diet were 0.54, 0.60, 0.66, 0.72, and 0.78, respectively. Refer to Experiment 1 to select the limiting lysine level, sulfur-containing amino acids, tryptophan, valine and isoleucine meet 110% of the NRC (2012) recommended ratio, and the rest of the nutrients meet or exceed the NRC (2012) recommended value.

[0088] 1.2 Feeding management

...

Embodiment 3

[0120] Example 3. Research on the optimal ratio of tryptophan and lysine in the standard ileum of 90-120 kg fattening pigs under the condition of low nitrogen discharge diet

[0121] 1.1 Experimental animals and experimental diets

[0122] Select 90 Duroc × Changbai × Large White Sanyuan healthy fattening sows with an initial body weight of 90kg, and randomly divide them into 5 treatments, each treatment has 6 repetitions, and each repetition (column) has 3 pigs, and the test period is 35 days . The experimental diet was based on standard ileal digestible amino acids, the net energy level was uniformly 2.48Mcal / kg, and the SID Trp / Lys in the diet were 0.12, 0.15, 0.18, 0.21, 0.24, respectively. Refer to Experiment 1 to select the limiting lysine level, sulfur-containing amino acids, threonine, valine and isoleucine meet 110% of the NRC (2012) recommended ratio, and the rest of the nutrients meet or exceed the NRC (2012) recommended value.

[0123] 1.2 Feeding management

[...

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Abstract

The invention discloses a daily ration with low nitrogen emission in later stage of finishing pigs with weight being 90-120kg. The daily ration comprises the following components by weight percent: 8.7-13.5% of protein and 0.49-0.73% of standard ileum digestible lysine, wherein the weight ratio of the standard ileum digestible tryptophan to the standard ileum digestible lysine is not less than 0.16%; the weight ratio of standard ileum digestible threonine to the standard ileum digestible lysine is not less than 0.61; the weight ratio of standard ileum digestible sulfur-containing amino acid to the standard ileum digestible lysine is not less than 0.57; the content of the net energy of daily ration with low nitrogen emission is 2.48Mcal / kg. Results show that the daily ration is capable of obtaining growth property and carcass quality similar to normal proteome, reducing the emission amount of animal nitrogen on the basis of cost consumption, thereby greatly improving the utilization efficiency of nitrogen in the animal.

Description

technical field [0001] The invention belongs to the technical field of animal nutrition and relates to a 90-120kg fattening pig late stage low-nitrogen discharge ration. Background technique [0002] In recent decades, the genetic traits of animals have been improved by means of breeding, and the growth rate and carcass quality of fattening pigs have gradually increased. At present, most of the fattening pigs are slaughtered at about 90-100 kg, which fails to give full play to the optimal growth potential of the animals, resulting in a great waste of labor and feeding costs. However, the domestic "Pig Feeding Standards" (2004) still lacks nutritional standards for the late stage of fattening (90-120kg), and fails to provide the necessary recommended amino acid values ​​for pig production. [0003] At the same time, with the rapid growth of domestic feed production, the gap between the supply and demand of protein raw materials is also increasing. How to precisely formulate...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16A23K20/142A23K20/147A23K50/30
Inventor 谯仕彦马文峰曾祥芳宋青龙张海燕
Owner CHINA AGRI UNIV
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