標題: The Importance Of Early Feed For Chicks [打印本頁] 作者: monica 時間: 2007-5-30 22:29 標題: The Importance Of Early Feed For Chicks Early feed intake：Moran (1996)
Immediate 立即采食 24 h Post-hatch出殼后24小時
21 d
BW 體重 674a 598 b
FCR 飼料轉(zhuǎn)化率 1.64 1.65
42 d
BW 1479 1442
FCR 1.94 1.94
Mortality % 死亡率 3.8a 7.0b
Advice:
Stimulate feed and water intake of
ASAP盡快誘食及飲水
The facts事實
Chicks at hatch are not yet mature and are still in a late embryonic phase
剛出殼的雛雞并沒有完全成熟,仍處于胚胎后期
Chicks undergo a transition stage of 24 to 48h before having access to feed
在采食飼料前,雛雞仍需要24-48小時的過渡階段
It is common the chicks are stressed and dehydrated 1st week mortality can be as high as 3 to 4%.
在出殼后的第一周,應激或脫水會造成3%-4%的死亡率.
Early feeding of chicks not only has a permanent effect on body weight and carcass development, but also is critical for a good development of the immune system.
早期飼喂,不僅對體重和胴體質(zhì)量有長遠影響,而且對良好免疫系統(tǒng)的發(fā)育也很關鍵.
The effect of feed restriction on the immune response (Afzal e.a., 1999)
Restricted 限飼 Ad lib自由采食