干旱区生态环境知识资源中心(Arid): Cactus-alfalfa blend silage as an alternative feedstuff for Saanen dairy goats: Effect on feed intake, milk yield and components, blood and rumen parameters

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DOI	10.1016/j.smallrumres.2022.106811
	Cactus-alfalfa blend silage as an alternative feedstuff for Saanen dairy goats: Effect on feed intake, milk yield and components, blood and rumen parameters
	Ravari, F. Nourollahi; Tahmasbi, R.; Dayani, O.; Khezri, A.
通讯作者	Dayani, O
来源期刊	SMALL RUMINANT RESEARCH
ISSN	0921-4488
EISSN	1879-0941
出版年	2022
卷号	216
英文摘要	The effects of substituting corn silage (CS) by cactus-alfalfa blend silage (CABS) on feed intake, milk production and composition, blood parameters, rumen fermentation parameters, and feeding behavior of dairy goats were examined here. The spineless cactus (Opuntia ficus Indica) was chopped and blended with alfalfa hay (66:34 % dry matter (DM) basis, respectively) and ensiled for 45 days. After determining the chemical composition of the ensiled material (31.4 % DM, 1.01 mcal/kg NEL, 12.7 % CP and 48.6 % NDF), it was used in feeding dairy goats. Eight Saanen dairy goats (43.5 +/- 3.5 kg BW) were used in a replicated 4 x 4 Latin squares design (21-d period) and fed separated ration, which CS was replaced by levels 0 %, 10 %, 20% and 30 % DM of CABS. Substitution of CS with CABS increased linearly ruminal propionic acid molar with the maximum point of 22.5 (mol/100 mol) and decreased linearly acetic acid and acetate to propionate ratio (P < 0.05). There was no significant difference observed for dry matter intake (DMI), nutrients apparent digestibility, average daily gain (ADG) and milk yield, except for milk composition for all the diets. There was a quadratic effect on milk protein percentage whit the maximum points of 3.83 % by feeding 30 % of CABS (P < 0.006). There was a quadratic effect on somatic cell count (SCC) of milk whit the minimum value of 4.72 (10(5) cell/ml) by feeding 30 % of CABS (P < 0.001). Feeding CABS decreased linearly the concentrations of butyric acid (C4:0) and significantly changed margaric acid (C17:0) in milk fat (P < 0.05). The results of this study indicated that CABS did not affect DMI, milk yield and feeding behavior. However, the increase in milk protein content and the reduction of SCC suggest a positive effect of CABS on improving mammary gland functionality. Therefore, CABS can serve as an alternative feedstuff up to 30 % on DM basis, especially in semi-arid regions, to replace CS in the diet of dairy goats.
英文关键词	Cactus -alfalfa blend silage Feeding behavior Milk yield Phytochemicals Saanen dairy goats Semi -arid regions
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000865449400017
WOS关键词	OPUNTIA-FICUS-INDICA ; MICROBIAL PROTEIN-SYNTHESIS ; NEUTRAL DETERGENT FIBER ; ANTIOXIDANT PROPERTIES ; RUMINAL FERMENTATION ; CHEMICAL-COMPOSITION ; NUTRIENT UTILIZATION ; PROPIONIC-ACID ; AMINO-ACIDS ; DRY-MATTER
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/2XILL650/394499
推荐引用方式 GB/T 7714	Ravari, F. Nourollahi,Tahmasbi, R.,Dayani, O.,et al. Cactus-alfalfa blend silage as an alternative feedstuff for Saanen dairy goats: Effect on feed intake, milk yield and components, blood and rumen parameters[J],2022,216.
APA	Ravari, F. Nourollahi,Tahmasbi, R.,Dayani, O.,&Khezri, A..(2022).Cactus-alfalfa blend silage as an alternative feedstuff for Saanen dairy goats: Effect on feed intake, milk yield and components, blood and rumen parameters.SMALL RUMINANT RESEARCH,216.
MLA	Ravari, F. Nourollahi,et al."Cactus-alfalfa blend silage as an alternative feedstuff for Saanen dairy goats: Effect on feed intake, milk yield and components, blood and rumen parameters".SMALL RUMINANT RESEARCH 216(2022).