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Feeding method for improving bone quality of laying hens

A feeding method and technology of laying hens, applied in the field of agricultural livestock and poultry breeding, to achieve the effect of improving absorption

Active Publication Date: 2022-05-24
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing methods generally ignore that the growth and development of the skeleton is mainly concentrated in the brooding and rearing stages; moreover, during the laying stage of laying hens, cortical bone and trabecular bone are no longer formed

Method used

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  • Feeding method for improving bone quality of laying hens
  • Feeding method for improving bone quality of laying hens
  • Feeding method for improving bone quality of laying hens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this example, Roman powder laying hens were selected, and the nutrient level of the basic diet of laying hens was prepared with reference to the feeding and management manual of Roman powder laying hens, keeping the amino acid ratio consistent, the basic diet was corn-soybean meal type, and the feed form was powder.

[0029]The vitamin premix is ​​prepared according to the raw material components in Table 1 and Table 2, and the addition amount of vitamin premix in the diet of each ton of laying hens is 2300g; The component configuration of table 2 is continuously fed, and the vitamin D in the diet per kilogram of this example is 3 The content is 300IU, no 25-hydroxyvitamin is added, and wk in the instructions and the accompanying drawings of the instructions indicates the age in weeks.

[0030] Table 1 Weight of each component of vitamin premix in Example 1

[0031]

[0032]

[0033] Each component of the vitamin premix of the present embodiment is as follows ...

Embodiment 2

[0039] In this example, Roman powder laying hens were selected, and the nutrient level of the basic diet of laying hens was formulated with reference to the feeding and management manual of Roman powder laying hens, keeping the amino acid ratio consistent, the basic diet was corn-soybean meal type, and the feed form was powder.

[0040] The vitamin premix is ​​prepared according to the raw material components in Table 3 and Table 4, and the addition amount of vitamin premix in the diet of each ton of laying hens is 2300g; in the 1-20-week-old brooding stage of laying hens, according to Table 3 Continue feeding with the composition in Table 4.

[0041] Table 3 The weight of each component of the vitamin premix in Example 2

[0042]

[0043] Each component of the present embodiment vitamin premix is ​​as follows in the following table 4 by weight percentage:

[0044] Table 4 The weight percentage of each component of the vitamin premix in Example 2

[0045]

[0046]

...

Embodiment 3

[0049] In this example, Roman powder laying hens were selected, and the nutrient level of the basic diet of laying hens was formulated with reference to the feeding and management manual of Roman powder laying hens, keeping the amino acid ratio consistent, the basic diet was corn-soybean meal type, and the feed form was powder.

[0050] The vitamin premix is ​​prepared according to the raw material components in Table 5 and Table 6, and the addition amount of the vitamin premix in the diet of each ton of laying hens is 2300 g; Continue feeding with the composition in Table 6.

[0051] Table 5 The weight of each component of the vitamin premix in Example 3

[0052]

[0053]

[0054] The components of the present embodiment vitamin premix are as follows in the following table 6 by weight percentage:

[0055] Table 6 The weight percentage of each component of the vitamin premix in Example 3

[0056]

[0057] In this example, 2800 IU of vitamin D3 was added to the diet ...

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Abstract

The invention discloses a feeding method for improving bone quality of laying hens, which comprises the following steps: simultaneously adding vitamin D3 and 25-hydroxyvitamin D3 into a vitamin premix, continuously feeding the laying hens in a brooding and breeding stage of 1-20 weeks old by using the vitamin premix which is simultaneously added with the vitamin D3 and the 25-hydroxyvitamin D3 into a feed, the content of the vitamin D3 in each kilogram of the feed is 2800IU, and the content of the 25-hydroxy vitamin D3 in each kilogram of the feed is 56mu g. The bone quality is regulated and controlled in the main stage and key stage of bone growth and development of the laying hens of 1-20 weeks old, and the vitamin D3 and the 25-hydroxy vitamin D3 are added into the vitamin premix at the same time, so that the bone health and the absorption of calcium phosphate substances in intestinal tracts are remarkably improved. The tibia ash content, tibia strength, cortical bone mineral density, bone trabecula bone mineral content, cortical bone mineral content, bone trabecula quantity, tibia strength and calcium and phosphorus content of the laying hens in the early egg laying period and the late egg laying period are remarkably improved.

Description

technical field [0001] The invention belongs to the field of agricultural livestock and poultry breeding, in particular to a feeding method for improving the bone quality of laying hens. Background technique [0002] The bone quality of laying hens is closely related to the production performance. First, the abnormality of the bones of laying hens will lead to an increase in the death rate of laying hens and a decrease in the egg production rate; in addition, the bone quality of laying hens is also closely related to the quality of eggshells. During formation, the skeleton can be mobilized to provide 40% of the daily calcium for the eggshell, and up to 60% when the hens are fed a low-calcium diet. Therefore, improving the bone quality of laying hens is very important to improve laying performance and eggshell quality. However, skeletal abnormalities in laying hens, such as osteoporosis, laying hen fatigue syndrome, and keel fractures, are common in laying hens, especially d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02A23K50/75A23K10/37A23K20/174
CPCA01K67/02A23K50/75A23K10/37A23K20/174Y02P60/87
Inventor 丁雪梅李东东张克英王建萍白世平曾秋凤玄玥彭焕伟吕莉
Owner SICHUAN AGRI UNIV
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