干旱区生态环境知识资源中心(Arid): AWASSI SHEEP MILK FATTY ACID PROFILE DURING LACTATION UNDER A TRADITIONAL GRAZING SYSTEM IN SEMI-ARID REGIONS

Arid

DOI	10.36899/JAPS.2022.4.0492
	AWASSI SHEEP MILK FATTY ACID PROFILE DURING LACTATION UNDER A TRADITIONAL GRAZING SYSTEM IN SEMI-ARID REGIONS
	Youssef, M.; Hilali, M. E. D.; Saab, S. Abi
通讯作者	Youssef, M
来源期刊	JOURNAL OF ANIMAL AND PLANT SCIENCES-JAPS
ISSN	1018-7081
EISSN	2309-8694
出版年	2022
卷号	32 期号:4 页码:909-917
英文摘要	The effects of lactation stage, farm and the stage ?? farm interaction on the main components, physicochemical characteristics and fatty acid profile of Awassi ewes??? milk were studied (n = 16) over all lactation stages starting from day 10 to avoid colostral milk which is very rich in nitrogen due to globulins. Milk was sampled on the following control days: D10, D30, D70, D100 and D130. Ewes grazed on available natural pasture and supplemented with maize, soybean meal, concentrate according to their needs. Milk samples were analyzed for milk composition using Milkoscan FT120 instrument and milk fatty acids profile was performed with a gas chromatography equipped with flame ionization detection (GC-FID). Monounsaturated fatty acid and polyunsaturated fatty acid (PUFA) contents were negatively correlated with the advance of lactation stage. The PUFAs as C18:2t isomers and conjugated linoleic acid (CLA) had their highest contents at D30 (0.87??0.05%, 1.13??0.05%; respectively). Omega 3 fatty acids had their highest value, 1.41??0.05%, at D70 and the omega 6: omega 3 ratio had its lowest value, 1.52??0.19%, during D30???D70, which was optimal. Thus, the increase in healthy milk fatty acids from grazing ewes will provide healthier dairy products for later human consumption especially from earlier periods in lactation.
英文关键词	Milk composition fatty acids lactation stage Awassi sheep
类型	Article
语种	英语
开放获取类型	Green Submitted, hybrid
收录类别	SCI-E
WOS记录号	WOS:000835073500002
WOS关键词	CHEMICAL-COMPOSITION ; FEEDING STRATEGIES ; SEASONAL-CHANGES ; CLA CONTENT ; DAIRY EWES ; YIELD ; STAGE ; QUALITY ; BREED ; GOAT
WOS类目	Agriculture, Multidisciplinary ; Biology ; Veterinary Sciences
WOS研究方向	Agriculture ; Life Sciences & Biomedicine - Other Topics ; Veterinary Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393280
推荐引用方式 GB/T 7714	Youssef, M.,Hilali, M. E. D.,Saab, S. Abi. AWASSI SHEEP MILK FATTY ACID PROFILE DURING LACTATION UNDER A TRADITIONAL GRAZING SYSTEM IN SEMI-ARID REGIONS[J],2022,32(4):909-917.
APA	Youssef, M.,Hilali, M. E. D.,&Saab, S. Abi.(2022).AWASSI SHEEP MILK FATTY ACID PROFILE DURING LACTATION UNDER A TRADITIONAL GRAZING SYSTEM IN SEMI-ARID REGIONS.JOURNAL OF ANIMAL AND PLANT SCIENCES-JAPS,32(4),909-917.
MLA	Youssef, M.,et al."AWASSI SHEEP MILK FATTY ACID PROFILE DURING LACTATION UNDER A TRADITIONAL GRAZING SYSTEM IN SEMI-ARID REGIONS".JOURNAL OF ANIMAL AND PLANT SCIENCES-JAPS 32.4(2022):909-917.