Effect of feeding regimen and body weight of mandarah local strain on : 2-Productive and reproductive performance of laying hens.
Abstract: A total number of 400 hens and 40 males of Mandarah local strain was classified into three classes being small (W1), intermediate (W2) and large (W3) body weight. Each class received three levels of feed intake (L1, L2 and L3) from 20 up to 40 wks old in a 3X3 factorial arrangement of treatments. Forty female and four male birds from the intermediate body weight were fed ad libitum as a control group. Birds were divided equally and housed into 20 floor pens, two pens (replicates) per treatment, each pen contained 20 females and 2 males.
Average body weight of the W1, W2 and W3 bird classes were 1258, 1384 and 1500 g respectively. This study aimed to establish the optimum economical feed consumption during the laying period 20-40 weeks old . Egg production percentage was not significantly affected by either feeding system or body weight . Group of W1 recorded best egg production % while those of W3 recorded significantly higher average egg weight . The hatchability percentage of those groups (W1 and L1) was higher than the other groups. The best-feed conversion ratio of feed restricted groups were obtained by L1 and W1 groups followed by L3 , W3 and L2 , W2 and then by the control group. Economically, it could be concluded that the feed restriction system during laying period is very important to save about 20-25% of total feed cost and to enhance the production and reproductive performance of Mandarah local strain birds.
Keywords: Mandarah local strain , feed restriction , egg production , hatchability, feeding system .
Publication year 2001
Pages 1069-1078
Availability location 7 شارع نادى الصيد-الدقى(معهد بحوث الانتاج الحيوانى)
Availability number
Organization Name
City القاهرة
serial title Egyption J. nutrition and feeds
Department Poultry Nutrition Research Department
Author(s) from ARC
Agris Categories Animal feeding
AGROVOC
TERMS		 Body weight. Egg hatchability. Egg production. Feeding systems. Layer chickens. Performance testing. Reproduction.
Publication Type Journal
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