Influence of sex and rearing method on performance and flock uniformity in broilers—implications for research settings

Author(s)
England, Ashley
Gharib-Naseri, Kosar
Kheravii, Sarbast K
Wu, Shu-Biao
Publication Date
2023-03
Abstract
<p>Male and female broiler chickens differ in their growth performance, carcass part weights and nutrient requirements. The potential reasons for these differences have been explored by looking at differences in nutrient digestibility, nutrient transporter gene expression as well as gut microbiota populations between male and female birds. Studies have shown that male broilers have higher crude protein requirements compared to female broilers. The expression of monosaccharide and amino acid transporters show conflicting results as expression depends on the interactions between sex and bird age and breed as well as which tissue is sampled. Differences in microbiota populations between the genders were reported which may contribute towards performance differences, however research in this area is limited. The differences observed between the sexes contribute to increased variation in nutrition trials, and the potential to rear birds as equally mixed-sex becomes an option to reduce the variation introduced by the sex effect. Difference in rearing options obviously would only be feasible provided a quick, practical and cost-effective method of sexing birds is available, a topic that is also discussed in this review.</p>
Citation
Animal Nutrition, v.12, p. 276-283
ISSN
2405-6383
2405-6545
Link
Language
en
Publisher
Zhongguo Xumu Shouyi Xuehui,Chinese Association of Animal Science and Veterinary Medicine
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
Title
Influence of sex and rearing method on performance and flock uniformity in broilers—implications for research settings
Type of document
Journal Article
Entity Type
Publication

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