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Author Supreena Srisaikham
Alternative Author Wisitiporn Suksombat
Naoki lsobe
Songklanakarin Journal Of Science and Technology
TitleEffects of dietary levels of fresh cassava pulp in dairy cattle diet on productive performance and keeping quality of raw milk
Alternative TitleEffects of dietary levels of fresh cassava pulp in dairy cattle diet on productive performance and keeping quality of raw milk
Imprintปีที่ 40 ฉบับที่ 2, มีนาคม-เมษายน 2561
Call# FOOD 8492

CALL # Volume Number Month Year Barcode Status

AbstractThis research aimed to study the effects of supplementation at three levels of fresh cassava pulp (FCP) in the concentrate diet of dairy cows: 1) 0 kg/d, 2) 3.5 kg/d (35 ppm hydrogen cyanide [HCN]), and 3) 7.0 kg/d (70 ppm HCN). The effects studied were productive performance,milk yield,milk composition,and milk quality. Twenty-four Holstein Friesian crossbred lactating dairy cows were blocked by lactation first and then stratified random balanced by days in milk,milk yields, and body weight. Cows were assigned into randomized complete block design and divided into three groups of 8 cows each. All cows were individually fed 21% crude protein concentrate together with ad libitum fresh grass and FCP according to the supplemented treatments. The results showed that the total HCN content intake increased when the level of FCP supplementation was increased. The supplementation of FCT at either 3.5 or 7.0 kg/d FCP had no negative effects on milk yield and milk composition. Milk thiocyanate concentration, lactoperoxidase (LP) activity,and the keeping quality of milk were increased by supplementation of FCP at 7.0 kg/d and decreased the somatic cell counts, standard plate counts, coliform counts, psychrotrophic counts, and thermophilic counts. The present study suggested that supplementation of FCP at either 3.5 or 7.0 kg/d may be associated primarily with increased efficiency of antibacterial activity of the LP system in raw milk thus improving the milk keeping quality, ln addition, the supplementation at either 3.5 or 7.0 kg/d of FCP possibly decreased the incidence of mastitis in lactating dairy cows
Descriptหน้า 278-289
SubjectFresh cassava pulp
lactoperoxidase activity
keeping quality
microbial counts
lactating dairy cows
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