干旱区生态环境知识资源中心(Arid): Effects of stocking density and environmental conditions on performance, immunity, carcase characteristics, blood constitutes, and economical parameters of cobb 500 strain broiler chickens

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DOI	10.1080/1828051X.2020.1757522
	Effects of stocking density and environmental conditions on performance, immunity, carcase characteristics, blood constitutes, and economical parameters of cobb 500 strain broiler chickens
	Gholami, Majid; Chamani, Mohammad; Seidavi, Alireza; Sadeghi, Ali Asghar; Aminafschar, Mehdi
通讯作者	Seidavi, A
来源期刊	ITALIAN JOURNAL OF ANIMAL SCIENCE
ISSN	1594-4077
EISSN	1828-051X
出版年	2020
卷号	19 期号:1 页码:524-535
英文摘要	The effects of stocking density and environmental conditions on performance, economic profit, carcase characteristics, immunity, and blood plasma parameters of Cobb 500 strain of broiler chickens were evaluated. The 4 climate regions (mild and humid, semi-arid, alpine, hot and dry) and 4 densities (10, 15, 17 and 20 chicks/m(2)) were carried out as a completely randomised design with 4 x 4 factorial arrangement of treatments. The corn and soybean based diets were formulated according to the nutrition requirements guide of the Cobb 500 for starter and grower periods. The amount and the composition of the diet were the same for all experimental groups. Growth performance and feed intake were measured weekly. After the injection of sheep red blood cell at 15 and 35 days, blood samples were taken at 24 and 42 days, respectively, to study the immunity of broiler chickens. At the end of the experiment, 3 birds were slaughtered from each experimental unit for measuring the weights of carcase, abdominal fat, gastrointestinal organs (the total weight of gastrointestinal tract and caeca, and liver) and blood parameters. The interaction effects of stocking density and climate region on feed conversion ratio (in starter period), survival rate, cost, profit, cholesterol, triglyceride, high density lipoproteins (HDL), HDL/low density lipoproteins (LDL) ratio, and liver enzymes aspartate aminotranferases (AST), also known as serum glutamic oxaloacetic transaminase (SGOT), and alanine aminotranferase (ALT) were significant (p < .05). Climate and density each had a significant effect on production index (p < .05). The highest production index was obtained in alpine climate. Moreover, the density of 10 chicks/m(2) showed the highest production index. The results showed that rearing Cobb strain chickens in hot and dry climate and at the density of 17 chicks/m(2) had the most economic benefit. Based on the results of this study to achieve the highest profit in different climates, a density of 17 chicks/m(2) (0.633 ft(2) per bird) is recommended for Cobb 500 strain chickens.
英文关键词	Antibody cholesterol climate economic environment
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000532835900001
WOS关键词	GROWTH-PERFORMANCE ; MEAT QUALITY ; VITAMIN-E ; SUPPLEMENTATION ; INDICATORS ; WELFARE ; HOT
WOS类目	Agriculture, Dairy & Animal Science ; Agriculture, Multidisciplinary ; Veterinary Sciences
WOS研究方向	Agriculture ; Veterinary Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324451
作者单位	[Gholami, Majid; Chamani, Mohammad; Sadeghi, Ali Asghar; Aminafschar, Mehdi] Islamic Azad Univ, Sci & Res Branch, Dept Anim Sci, Tehran, Iran; [Seidavi, Alireza] Islamic Azad Univ, Rasht Branch, Dept Anim Sci, Rasht, Iran
推荐引用方式 GB/T 7714	Gholami, Majid,Chamani, Mohammad,Seidavi, Alireza,et al. Effects of stocking density and environmental conditions on performance, immunity, carcase characteristics, blood constitutes, and economical parameters of cobb 500 strain broiler chickens[J],2020,19(1):524-535.
APA	Gholami, Majid,Chamani, Mohammad,Seidavi, Alireza,Sadeghi, Ali Asghar,&Aminafschar, Mehdi.(2020).Effects of stocking density and environmental conditions on performance, immunity, carcase characteristics, blood constitutes, and economical parameters of cobb 500 strain broiler chickens.ITALIAN JOURNAL OF ANIMAL SCIENCE,19(1),524-535.
MLA	Gholami, Majid,et al."Effects of stocking density and environmental conditions on performance, immunity, carcase characteristics, blood constitutes, and economical parameters of cobb 500 strain broiler chickens".ITALIAN JOURNAL OF ANIMAL SCIENCE 19.1(2020):524-535.