Delay in feed access and spread of hatch: importance of early nutrition
نویسنده
چکیده
Laboratory of Livestock Physiology, Immunology and Genetics, Department of Biosystems, Kasteelpark Arenberg 30, B-3001 Leuven, Belgium; Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium; Department of Biochemistry and Molecular Biology, College of Biological Sciences, China Agricultural University; Department of Animal Production, School of Agriculture University of Lome, Togo *Corresponding author: [email protected]
منابع مشابه
Spread of hatch and delayed feed access affect post hatch performance of female broiler chicks up to day 5.
It is not rare that newly hatched chicks remain without feed for about 24 to 48 h before they are placed on farms due to a series of logistic operations. Furthermore, the spread in hatching time can also mount up to 30 to 48 h for late v. early hatchers. In other words, the practice is a complex combination of spread of hatch and delayed feed access. The present study was aimed to investigate t...
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Delay in access to feed for 1-d-old chicks impairs posthatch growth. It is a standard practice that 1-d-old chicks are deprived of feed for about 48 h before they are placed on farms. During incubation, there is a spread of 24 to 48 h for late versus early hatching. As spread of hatch increases, number of chicks that are feed-deprived for a longer time before free access (IA) to feed and water ...
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The effect of early transition of the digestive system to exogenous nutrition was examined in three experiments with growing birds. A nutrient mixture (0.5 ml) of glucose, starch and oil (1:1:0.5, by vol) was orally administered immediately after hatch to turkey poults (Meleagris gallopavo) having immediate or delayed access to feed (Expt 1). Increasing amounts (0, 0.25 and 0.5 ml) of this mixt...
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The current study evaluated effects of hatch moment and immediate feed and water access within a 24-h hatch window on chicken growth and development. Five hundred four male chickens obtained from a 49-wk-old Ross 308 breeder flock were assigned to 72 cages based on hatching moment (early, midterm, or late; selected during periods of 475 to 481, 483 to 487, and 489 to 493 h after onset of incuba...
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