• Title/Summary/Keyword: Early Lactation

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Development of cordycepin fortified milk production in Holstein cows I. Effects of various levels of Cordyceps militaris mycelia from grains supplement on cordycepin content in milk in dairy cows (Cordycepin 강화 우유 생산에 관한 연구 I. 동충하초 균사체의 적정사용량 결정을 위한 사양연구)

  • Yeo, J.M.;Lee, S.H.;Kim, D.H.;Hwang, J.H.;Kim, W.Y.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.11 no.1
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    • pp.103-111
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    • 2009
  • This study was carried out to determine effects of long-term supply of Cordyceps militaris mycelia on cordycepin content in milk in dairy cows. Ten Holstein cows in the early stages of lactation were divided into two groups. Control group received no supplement whereas treatment group received 6% of C. militaris mycelia of their dry matter intake for 6 months. Feed intake, milk urea nitrogen and somatic cell counts were not affected by long-term supply of C. militaris mycelia for the whole period. In addition, milk yield and milk composition were not affected by long-term supply of C. militaris mycelia at any time of the periods with the exception of milk protein content and yield. The average of milk protein content and yield from the whole period was higher for C. militaris mycelia supplement group than for the control group. As expected, cordycepin in whole blood and milk was not detected in the control group. The range of cordycepin content in the treatment was 0.31~0.38µ/ml and 0.18~0.26(µ/ml for whole blood and milk, respectively. Individual variation was found to be very high and, furthermore cordycepin was undetected in some milk samples. Thus, no clear pattern could be seen in cordycepin content in milk throughout the whole period. Overall, the results of the present study suggest that the transfer efficiency of cordycepin to milk by supplementing C. militaris mycelia in dairy cows was unpredictable and low.

Development of cordycepin fortified milk production in Holstein cows II. Effects of long-term supply of Cordyceps militaris mycelia on cordycepin content in milk in dairy cows (Cordycepin 강화 우유 생산에 관한 연구 II. 장기간 동충하초 균사체급여가 우유 중의 cordycepin 함량 변화에 미치는 영향)

  • Yeo, J.M.;Lee, S.H.;Kim, D.H.;Hwang, J.H.;Kim, W.Y.
    • Journal of Practical Agriculture & Fisheries Research
    • /
    • v.11 no.1
    • /
    • pp.113-123
    • /
    • 2009
  • This study was carried out to determine effects of long-term supply of Cordyceps militaris mycelia on cordycepin content in milk in dairy cows. Ten Holstein cows in the early stages of lactation were divided into two groups. Control group received no supplement whereas treatment group received 6% of C. militaris mycelia of their dry matter intake for 6 months. Feed intake, milk urea nitrogen and somatic cell counts were not affected by long-term supply of C. militaris mycelia for the whole period. In addition, milk yield and milk composition were not affected by long-term supply of C. militaris mycelia at any time of the periods with the exception of milk protein content and yield. The average of milk protein content and yield from the whole period was higher for C. militaris mycelia supplement group than for the control group. As expected, cordycepin in whole blood and milk was not detected in the control group. The range of cordycepin content in the treatment was 0.31~0.38µ/ml and 0.18~0.26(µ/ml for whole blood and milk, respectively. Individual variation was found to be very high and, furthermore cordycepin was undetected in some milk samples. Thus, no clear pattern could be seen in cordycepin content in milk throughout the whole period. Overall, the results of the present study suggest that the transfer efficiency of cordycepin to milk by supplementing C. militaris mycelia in dairy cows was unpredictable and low.