How to prevent laying hens from giving birth prematurely

Chicken can be said to be the first of the four major poultry in China, and it is raised all over the country. There are many kinds of raising chickens, and laying hens are one of the more popular breeds. When we raise laying hens, the opening time is very important, many people will encounter the phenomenon of laying hens early, seriously affecting the breeding and economic benefits of laying hens. So how can we prevent laying hens from laying prematurely? Let's take a look at it with the editor.

1. Constant light during the brooding period.

In the laying hen breeding period and breeding period, we should according to the local natural light time. From the day the chicks break their shells, it is calculated that when the chickens are about 5 months old, the longest sunshine hours will be regarded as a constant sunshine time. Except that the chicks should be in full light every day from the fourth day to the week. From the 8th day to the 140th day, the constant light time should be used as the standard. If the natural sunshine time is insufficient, then it is necessary to do a good job of artificial light replenishment. Then, from the beginning of the 21st week, add about half an hour or so each week until you keep it at about 16 hours a day.

2. Gradually increasing light during the laying period

This method is the opposite of the first method. However, from the fourth day to the seventh day, full light should be given priority to. From the 8th day to the 140th day, we first need to check the sunshine time of the flock at the age of 5 months. Then in the 2-week-old light time should be about 7 hours, similarly, if the natural light is insufficient, it is necessary to replenish the light manually. At the beginning of the third week, the weekly reduction is about 25 minutes, until the final reduction of 7 hours, maintaining natural light. Then from the age of 21 weeks, an increase of about half an hour a week to 16 hours a week.

3. Points for attention

At present, many chicken breeds in chicken farms are mainly high-yielding hybrid strains of laying hens. And this kind of laying hen itself has the ability to start early, so it can be properly stimulated by light, so that the new hen can start laying earlier, and the breeding cost can be reduced. Therefore, the above two methods should be flexibly adjusted according to the actual situation. And light management is not the only way to control the sexual maturity and birth date of laying hens. It can also be controlled by feed restriction, but the sexual maturity time of laying hens can not be managed simply by controlling body weight. Therefore, it is best to combine feed restriction and light management according to the standard body weight of laying hens to ensure that laying hens can start production at the right time.

The above is a brief introduction to how to prevent laying hens from starting prematurely. The starting time of laying hens is very important, neither too early nor too late, so we must pay more attention. That's all for today's introduction. This article is for reference only. I hope it can help you all.