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http://dx.doi.org/10.5187/JAST.2006.48.3.479

Management, Feeding Practices, Milk Yield and its Quality in Korean Dairy Farms: a Survey  

김현섭 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
이왕식 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
기광석 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
이현준 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
백광수 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
안병석 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
아주말 칸 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
김상범 (Dairy Cattle Research Division, National Livestock Research Institute, RDA)
Publication Information
Journal of Animal Science and Technology / v.48, no.3, 2006 , pp. 479-486 More about this Journal
Abstract
The current study was conducted to examine the effect of feeding and management practices on milk quality and dairy farm productivity in Korea. Fifty dairy farms in Gyunggi (11), Gangwon (22), Chungnam (17) provinces were surveyed to collect data on the herd size, housing style, feeding management, waste disposal, milking practices and milk yield. Milk tank samples from all farms under study were also collected to enumerate its composition and quality parameters. Large dairy herds are equiped with better housing, milking and waste control facilities than medium and small dairy herds. Higher concentrate feeding to lactating cows was noticed in small dairy herds (47.51 %) than in medium (32.59 %) and large dairy herds (31.82 %). The decrease in concentrate feeding to lactating cows with increase in number of cows per farm resulted in a simultaneous increase in the use of imported forages. Bacterial count in milk was affected by housing and milking facilities at dairy farms. Higher bacterial counts (Coliform and E. coli) in milk were observed in cows housed in stanchion than those under free stall with saw dust bedding. The bacterial counts were higher with bucket milking system than with pipe-line and parlour systems. The increase in the number of dairy cows per farm and thus better management and milking facilities resulted in a reduction in somatic cell score. Milk yield (per cow) was higher in herds with less somatic cell score. Average milk protein concentration was between 2.89 to 2.98 % and milk urea nitrogen was between 21.81 to 23.31mg/ml on surveyed dairy farms. This study concluded that large herd size with better dairy cow management facilities is crucial to produce quality milk with better dairy farm income.
Keywords
Feeding and management style; Milk quality; Dairy farm;
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