Scientific elimination of low-grade laying hens

Elimination of low-yielding or discontinued chickens based on appearance

1. Look at feces. High-yield chicken droppings are often loose and soft, with high water content, falling into the ground, the fecal column under the cage is relatively high, chickens with no production or low-production chickens are dry, strips, and the fecal column under the cage is low. Some chickens are yellowish white. Or the green dung, the feathers around the anus are contaminated, and the fallen feathers can be seen in the faeces.

2. Look at chicken feet. Normal chicken feet have varying degrees of wear; chickens with low and discontinued chickens wear less.

3 see the action. The normal laying hens respond sensitively to changes in the external environment. They have flexible movements, loud calls, and long feeding times. Low-producing chickens and discontinued chickens are depressed and have a short feeding time.

Touching out low-yielding chickens and discontinued chickens

1. Touch keel, phalangeal spacing. The high-yield chickens have soft and thin phalanges, and the spacing between the phalanges and the phalanges and keels is relatively wide, about 6-8 cm. The low-yield chickens and discontinued chickens have relatively stiff toe bones and are curved inwards with a small distance, generally l-3 cm.

2. Touch the abdomen. Normal laying hens have less subcutaneous fat in the abdomen and are soft and elastic; while there are lump or running water-like objects in the abdomen, chickens are thin, and the chest muscles are thin. Some chickens have thick abdominal fat and are overweight.

3. Touch the skin. The skin of normal laying hens is soft and transparent; the skin of low-producing or discontinued chickens looks dry, has a rough feeling, is less transparent and has pigmentation, and has more dander.

4. Touch the anus. Normally, the anus of laying hens is moist. After 10 days of laying, the pigment around the anus fades. The anus of the low-producing chicken and the discontinued chicken is dry. After about 10 days of discontinued production, pigmentation occurs.

Hearing out low-yielding chickens and discontinued chickens

The high-yield chickens are loud and the low-yield chickens are low and hoarse.

View record

General chicken breeding households have egg production records. If large groups of egg production decline, they should record in detail. After the recovery of large groups of egg production, if individual chickens are discontinued, record the egg production rate in the cage group, and then find out the discontinued chickens by watching, listening, touching, etc.

Isolation observation treatment

For the suspected or expected treatment of discontinued chickens to be treated for isolation and observation, observation of a period of time, the recovery of good chickens can be transferred to large groups of feeding, if determined to be cured, promptly eliminated to reduce the waste of drugs and feed.

Fried Series

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