干旱区生态环境知识资源中心(Arid): Effects of an ensiled mixture based on orange pulp on the intake and performance of fattening male lambs

Arid

DOI	10.1016/j.anifeedsci.2024.115897
	Effects of an ensiled mixture based on orange pulp on the intake and performance of fattening male lambs
	Nargeszadeh, Vida; Rouzbehan, Yousef; Fazaeli, Hassan; Rezaei, Javad
通讯作者	Rouzbehan, Y
来源期刊	ANIMAL FEED SCIENCE AND TECHNOLOGY
ISSN	0377-8401
EISSN	1873-2216
出版年	2024
卷号	309
英文摘要	Forty Afshari male lambs (body weight = 28 kg +/- 2.2 kg) were used to assess the effects of ensiled mixture based on orange pulp (EMOP) on intake, average daily gain, nitrogen (N) balance, digestibility, estimated microbial N synthesis (EMNS), rumen variables, blood metabolites, total antioxidant capacity (TAC), and in vitro methane (CH4) emission. The EMOP contained (per kg dry matter; DM) 320 g fresh orange pulp, 300 g wheat straw, 110 g beet pulp, 82 g corn flour, 82 g corn gluten, 82 g rice bran, 20 g urea, 2 g ammonium sulfate, and 2 g vitamin -mineral premix. This homogenous mixture was packed into 40-L plastic containers and ensiled for 90 days. The experimental diets contained different levels (0, 180, 360, or 540 g/kg DM) of EMOP, which were individually assigned to four groups of fattening lambs (10 replicates) in a randomized trial. Lambs were fed with the diets twice daily for 74 days (10-d adaptation and 64-d recording period). Animal performance, rumen fermentation, EMNS, N balance, and blood metabolites were determined and data were analyzed using the MIXED procedure in SAS. Increasing the dietary level of EMOP improved the digestibilities of organic matter and ash -free neutral detergent fiber, and feed efficiency (FE) (L, P = 0.04). The EMOP inclusion in the diet decreased rumen ammoniaN concentration (L, P = 0.04), total protozoa count (L, P = 0.03), in vitro CH4 emission (L, P < 0.001), and blood urea -N concentration (L, P = 0.02), but increased total ruminal volatile fatty acids content (P = 0.03), cellulolytic bacteria population (L, P = 0.01), the amount of EMNS (L, P = 0.02), N retention (L, P = 0.01), and blood TAC level (L, P = 0.01). Overall, feeding EMOP, up to 540 g/kg of diet DM, improved FE, nutrient digestibility, rumen fermentation, and general health of Afshari lambs. Ensiling fresh orange pulp in combination with dry feeds can be a valuable way to preserve this by-product as a feedstuff, particularly in the arid and semi -arid areas, which may reduce the ration cost of lamb -meat production, without negative effects on fattening performance.
英文关键词	Lamb Orange pulp Mixed silage based on orange pulp Antioxidant capacity Animal growth
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001185642600001
WOS关键词	WATER ADDITION
WOS类目	Agriculture, Dairy & Animal Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402822
推荐引用方式 GB/T 7714	Nargeszadeh, Vida,Rouzbehan, Yousef,Fazaeli, Hassan,et al. Effects of an ensiled mixture based on orange pulp on the intake and performance of fattening male lambs[J],2024,309.
APA	Nargeszadeh, Vida,Rouzbehan, Yousef,Fazaeli, Hassan,&Rezaei, Javad.(2024).Effects of an ensiled mixture based on orange pulp on the intake and performance of fattening male lambs.ANIMAL FEED SCIENCE AND TECHNOLOGY,309.
MLA	Nargeszadeh, Vida,et al."Effects of an ensiled mixture based on orange pulp on the intake and performance of fattening male lambs".ANIMAL FEED SCIENCE AND TECHNOLOGY 309(2024).