期刊
WORLDS POULTRY SCIENCE JOURNAL
卷 77, 期 2, 页码 301-312出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00439339.2021.1898296
关键词
Adiposity; appetite; gut hormones; satiety
Broiler chickens eat more and grow faster than layer chickens, but excessive body fat accumulation due to hyperphagia is a serious issue. Understanding the complex mechanism of food intake regulation in chickens, particularly the role of peripheral hormones, is crucial for addressing the problem of broiler chicken obesity.
Broiler chickens eat more feed and grow faster than layer chickens. However, hyperphagia-induced excessive accumulation of body fat in broiler chickens has become a serious problem in the modern poultry industry. Species specificity in terms of the physiological role of appetite-regulating hormones and neuropeptides can make it difficult to understand the mechanisms underlying the central regulation of food intake in chickens. Therefore, although the appetite regulatory system of chickens has been a focus of research in recent decades, the mechanisms underlying the hyperphagia of broiler chickens are not fully understood. Our previous studies demonstrated that peripheral hormones significantly suppress food intake in chicks. These findings suggest that postprandial elevation of peripheral anorexigenic hormones plays important roles in appetite regulation in chickens. This review provides an overview of recent findings on the role of peripheral hormones in the regulation of food intake in chickens and proposes the new insight of avian-species-specific system of peripheral regulation of food intake and promising strategies for reducing body fat mass in broiler chickens.
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