Influence of Darkness Program on Performance Characteristics and Some Physiological Parameters of Ross 308 Boiler Chicks

Kalaba, Z. M.; Ismail, F. S.; Abd El Salam, A. K.; Sherif, Sara Kh.

doi:10.21608/jappmu.2023.236040.1092

	Influence of Darkness Program on Performance Characteristics and Some Physiological Parameters of Ross 308 Boiler Chicks
Journal of Animal and Poultry Production
Article 1, Volume 14, Issue 10, October 2023, Page 113-118 PDF (691.72 K)
Document Type: Original Article
DOI: 10.21608/jappmu.2023.236040.1092
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Authors
Z. M. Kalaba ¹; F. S. Ismail²; A. K. Abd El Salam²; Sara Kh. Sherif²
¹Poultry Production Department; Faculty of Agriculture; Mansoura University; Mansoura: Egypt
²Poult. Produc. Dept.; Fac. of Agric.; Mans. Uni.; Mansoura; Egypt.
Abstract
The experimental designed to measure the effect of darkening programs on growth rates and some blood parameters in broiler chicks. Six hundred Ross308 chicks Wing-banded at 1-day old were divided into four trail groups, each with 3 replications. The chicks were raised on ground litter containing sawdust. Chick's were subjected to four darkness program: Treatment 1, serviced as a control (24 light + zero dark), Treatment 2 (18 L + 6 D continues when chicks arrived 150 g), Treatment 3 (1 hour of darkness at 2^ndday, 2 hours of darkness at the start of the 2^nd week, 3 hours of darkness at the start of the 3^th week, 4 hours of darkness at the start of the 4^th week and 5 hours of darkness at the start of the 5^th week) and Treatment 4 (1 hour of darkness from the 4^th day until the 7^th day, 4 hours of darkness from the 8^th day until the 14^th day, and 6 hours of darkness from the 15^thday until the 30^thday). The results indicated that, the positive effect of the darkness schedule program which used in the experimental trail is treatment four.
Keywords
Darkness; Schedule; Growth; Physiological parameter


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