Pre-hatch and Post-hatch Egg Breakout and Hatchability Analysis as an Indicator to Increase Layer Breeder Performance and Egg Hatchability
نویسندگان
چکیده
منابع مشابه
Effect of Hatching Egg Size on Hatchability and Chick Hatch-weight of Indigenous Venda Chickens
An experiment was conducted to determine the effect of hatching egg size on hatchability and hatch-weight of indigenous Venda chickens (Gallus gallus domesticus). Three different egg size groups classified into small: (<49 g) medium: (50-59 g) and large:(60-69 g) were used in the experiment. A complete randomized design was used for the experiment. Simultaneously a quadratic type equation was u...
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Eggs obtained from 46 and 42 weeks old meat (Hybro) and layer (Leghorn) breeders flocks, respectively were used to examine the effects of genetic type of birds and egg size (small, medium and large) on variables of eggshell characteristics and hatchability traits. The variables measured were egg weight (EW), egg surface area (ESA) and eggshell characteristics (shell conductance (EC), per cent s...
متن کاملمطالعه اثرات شستشو، مدت زمان و دمای نگهداری بر خصوصیات جوجه کشی تخم غازهای بومی استان آذربایجان شرقی
The aim of this study was to investigate the effects of washing, storage time and storage temperature on hatchability and post- hatch growth of East Azarbaijan goose eggs. A total of 144 clean goose eggs were randomly selected from Malekan goose research station, East Azarbaijan and were asigned randomly for each treatment. There were 12 treatments in a factorial arrangement 2×3×2 based on...
متن کاملEffects of Electric Field During Incubation of Eggs on the Hatchability and Post-Hatch Performance of Meat Chickens
The effects of electric field (EF) during incubation of eggs on hatchability traits, and post-hatch performance, nutrient utilization and carcass characteristics of meat chickens were investigated in 2 trials. Eggs from a meat-type breeder flock were incubated under EF of 30kV/m, 60Hz during the first 18 d of incubation as compared with the control incubation treatment (C). Chicks hatched from ...
متن کاملEffects of In Ovo Feeding of L-Carnitine and Satureja Khuzistanica Extract on Hatchability, Post-Hatch Performance and Carcass Characteristics in Broiler Chickens
This study was carried out to investigate the effects of in ovo feeding of L-carnitine and Satureja Khuzistanica extract on hatchability, post-hatch performance and carcass traits in broiler chickens. A total of 560 fertile eggs of Ross 308 strain (36-wk-old breeder flock) were assigned randomly to seven treatments with four replicates and 20 eggs per replicate. Treatments included control grou...
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ژورنال
عنوان ژورنال: Journal of Applied Sciences
سال: 2019
ISSN: 1812-5654
DOI: 10.3923/jas.2019.818.826