Method for increasing calcium of laying hens in an expected laying period

A technology for laying hens and chicken feed, which is applied in the field of calcium increase in laying hens during the expected delivery period, and can solve problems such as nutrient loss, aggravated physiological diarrhea, and poor eggshell quality
CN112715477AInactive Publication Date: 2021-04-30BEIJING HUADU YUKOU POULTRY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING HUADU YUKOU POULTRY
Publication Date
2021-04-30
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method for increasing calcium of laying hens in an expected laying period. The method comprises the following steps that 5% of premix is provided for the laying hens, and the recommended square stone powder content of the premix is gradually increased from 15 weeks, so that the daily ration stone powder content is gradually increased to 8 - 8.5% in percentage by mass in 22 weeks from 0.8 - 1.2% in percentage by mass in 15 weeks. Marrow bone development and calcium deposition in about 16 weeks are considered, an addition amount of stone powder is gradually increased in advance from 15 weeks, transition is finer, calcium nutrition is more accurate, feed changing stress is reduced, chicken diarrhea is reduced, and the situation that the laying rate is rapidly increased and calcium supply cannot be achieved in the peak period of chicken flocks is avoided.
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Description

technical field

[0001] The invention relates to the technical field of feed nutrition for laying hens, in particular to a method for increasing calcium for laying hens at the expected delivery date. Background technique

[0002] The expected laying date of laying hens generally refers to 15 weeks to the start of laying. According to the feeding stage of Yukou poultry industry, the expected laying date is 99-5% egg production rate (about 44 days in total). Although the expected date of delivery is short, it belongs to the preparation stage before laying. At this stage, laying hens grow and develop rapidly, and calcium deposits in the medullary bone rapidly. Since 20-40% of the calcium in the eggshell is supplied by the medullary bone, if this stage is not prepared in advance Calcium reserves, it is easy to cause poor eggshell quality at the start of production, and the increase in broken soft-shell eggs will seriously cause cage fatigue in laying hens (commonly known as paral...

Claims

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