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http://dx.doi.org/10.5187/JAST.2007.49.3.359

Effects of SDN® as a Microbial Culture on Milk Production, Milk Composition and Somatic Cell Counts of Lactating Cows  

Kim, Youg-Kook (Division of Animal Science and Resources, Chungnam National University)
Lee, S.R. (B&B Korea Co., Ltd.)
Back, W.H. (B&B Korea Co., Ltd.)
Lee, I.D. (Division of Animal Science and Resources, Chungnam National University)
Bae, H.C. (Division of Animal Science and Resources, Chungnam National University)
Back, S.H. (Division of Animal Science and Resources, Chungnam National University)
Publication Information
Journal of Animal Science and Technology / v.49, no.3, 2007 , pp. 359-368 More about this Journal
Abstract
Holstein cows(n=12) were assigned to one of three diets containing control diet and diets containing a microbial culture, 50ml(T1) and 100ml(T2) SDN(R)(amicrobial culture), per day. The basal diet containing concentrate mixture, corn silage and timothy hay were fed midlactating cows for 12 weeks. Milk production tended to be higher for cows fed T2 diet (20.8kg/day) than fed T1(19.7kg/d) and control diet (19.2kg/day).  There was a tendency of an increase in 4% FCM for cows fed T2 diet(19.6kg/day) than T1(18.8kg/d) and control diet(18.4kg/day). Milk components were not found to be different between cows fed control diet and SDN(R) diets. There was a tendency an increase in milk protein for cows fed control diet(3.43%) compared with microbial diets, T1 and T2(3.08% and 3.20%). However, milk protein production was not significantly different between control diet(0.65kg/d) and T1(0.61kg/d) or T2(0.67kg/d). Somatic cell counts for cows fed T1(72,000) and T2(60,000/ml) were lower than cows fed control diet (108,000/ml) (P<0.05). In conclusion, the cows that were fed diets containing SDN(R) as a microbial culture resulted a tendency of an increase in milk production and a reduction of somatic cell counts which indicates improved milk quality and hygiene.
Keywords
Milk production; Milk composition; Somatic cell counts;
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