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Feed and method for relieving subclinical syndrome of hens in egg laying period

A technology for syndrome and laying period, which is applied in the field of animal nutrition research, can solve the problems of lack of stability and regularity, and achieve the effect of increasing feed cost, increasing egg production rate, and reducing feed-to-egg ratio

Pending Publication Date: 2021-01-15
JIANGSU INST OF POULTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing improvement measures lack stability and regularity, and methods that can coordinate and improve the main antagonistic phenotypes of subclinical metabolic syndrome in laying hens are urgently needed

Method used

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  • Feed and method for relieving subclinical syndrome of hens in egg laying period
  • Feed and method for relieving subclinical syndrome of hens in egg laying period
  • Feed and method for relieving subclinical syndrome of hens in egg laying period

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Effects of Different Contents of Methionine on Hen Production Performance, Egg Quality, and Related Tissues

[0018] 1 ration formulation

[0019] According to the feed formula table of Hailan brown layer hens, the methionine content was increased and decreased by 0.1% respectively by 0.2%, and the basal diet was prepared (as shown in Table 1), and the methionine content was respectively 0.1% (LM) and 0.2% ( Con) and 0.3% (HM) diets, in which the proportion of methionine decreased in the LM and Con groups was supplemented with rice bran. Store in a dry place away from light after bagging.

[0020] Table 1 Feed formula for Hailan brown layer hens

[0021]

[0022] 2 Experimental design

[0023] 2.1 Test material and grouping

[0024] In this experiment, 70-week-old Hailan brown layer hens were selected as experimental animals. The average daily feed consumption was 110g / hen, and they were fed at 8:00 am and 2:00 pm every day. Calculate according to the...

Embodiment 1

[0055] Example 1 shows that 54% methionine does increase the specific gravity of eggshells at the age of 78 weeks, which may improve the quality of eggshells, but different methionine contents in the feed have no significant impact on the laying performance of laying hens. content had no significant effect on other egg quality, heart-to-body ratio, spleen-to-body ratio, and liver-to-body ratio of laying hens.

Embodiment 2

[0056] Example 2: Effects of Dimethylglycine on Hen Production Performance, Egg Quality, and Related Tissues

[0057] 1 ration formulation

[0058] 1.1 According to the feed formula table of Hailan brown layer hens, reduce the content of methionine from 0.2% (Con) to 0.1% (LM);

[0059] 1.2 Add 0.025%, 0.05%, 0.075%, 0.1% and 0.125% dimethylglycine to the premix with methionine content of 0.1% (LM), respectively, denoted as N1, N2, N3, N4 and N5.

[0060] 1.3 Use rice bran to make up for the reduced proportion of methionine.

[0061] Fully mix 1.1, 1.2, 1.3 with dietary ingredients (as shown in Table 9) to obtain rations with methionine content of 0.2% (Con) and 0.1% (LM) respectively, and methionine content of 0.1%, dimethyl The diets with glycine contents of 0.025% (N1), 0.05% (N2), 0.075% (N3), 0.1% (N4) and 0.125% (N5) were stored in bags in a dry place away from light until use.

[0062] Table 9 Feed formula for Hailan brown layer hens

[0063]

[0064] 2 Experimen...

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Abstract

The invention relates to a feed for relieving the subclinical syndrome of hens in the egg laying period. 0.05-0.10 percent by mass of dimethyl glycine is added into the feed. The invention further provides a method for relieving the subclinical syndrome of hens in the egg laying period. The method comprises the step of adding 0.05-0.10 percent by mass of dimethylglycine into daily ration. The feedhas the beneficial effects that (1) the feed-egg ratio of hens can be extremely reduced by adding dimethyl glycine, the egg laying rate of the hens can be remarkably increased, the egg weight of thehens can be remarkably increased, and the color and luster of yolk can be improved; the estrogen level is improved, and the increasing abdominal fat percentage caused by reduction of methionine can beimproved; and the liver inflammation is relieved, the original lipid turnover balance of a body is changed, and lipid deposition in egg yolk is improved; According to the application method, the nutrient concentration of methionine in the daily ration is reduced by 22-35%, and the production cost can be reduced.

Description

technical field [0001] The invention relates to the field of animal nutrition research, in particular to a feed and a method for alleviating subclinical syndrome of laying hens. Background technique [0002] Subclinical metabolic syndrome in laying hens is a physiological metabolic syndrome unique to hens. It mainly manifests as a sudden drop in egg production rate and progressive fatty liver disease during the transition from the peak egg production to the late egg production period. , feed-to-egg ratio increases and egg quality decreases, which greatly affect the breeding benefits. This symptom develops gradually, and the incidence rate of chickens in the late laying period is as high as 95%, especially in some local breeds, which has a great impact on the health and laying performance of hens; Drug addition and other ways to prevent it, the mechanism of occurrence is not yet clear. Estrogen is mainly produced and secreted by the ovaries of chickens, and a high level of ...

Claims

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Application Information

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IPC IPC(8): A23K50/75A23K20/142A01K67/02
CPCA23K50/75A23K20/142A01K67/02
Inventor 童海兵施寿荣胡艳邵丹王强沈一茹肖蕴祺张珊张安
Owner JIANGSU INST OF POULTRY SCI
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