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- Title
The effect of calcium pantothenate on productive and reproductive performance in lactating dairy cows.
- Authors
Nocek, J.; Vazquez-Anon, M.
- Abstract
Two hundred cows were balanced by parity and previous lactation 305d ME to one of two treatments to determine the effect of supplementing calcium pantothenate (CP, CRYSPAN™, beta crystalline form of calcium pantothenate, Daiichi Fine Chemical Co. Ltd.) on production and reproductive performance in lactating dairy cattle. The Control group was fed a pre- and postpartum diet to meet NRC (2001) requirements. The CP group was fed the Control diet with the addition of 6g/cow/d of CP in the TMR. Cows were housed in free stall group pens (approx. 100cows/group). The experimental period started 21 days before estimated calving date to about 160 days in the subsequent lactation. Approximately 100 cows were assigned to each treatment. The design was a split-plot in time with repeated measures, with cow as the experimental unit. Milk production was not significantly influenced by CP supplementation; however, cows receiving CP produced 0.5 kg more than Control. The 3.5% fat-corrected milk was higher (P = .01) for cows consuming CP compared to Control (38.9 vs. 37.4 kg). This difference was primarily influenced by a higher (P = .02) fat test for cows receiving CP (3.65 vs. 3.51%). This resulted in an increased fat yield (P = .01) for cows receiving CP. Protein percentage was not influenced by treatment; however, yield of protein was higher (P = .02) for cows receiving CP. Cows receiving CP had fewer (P=.10) days open (88.7 vs. 95.6) and a greater (P=.03) percentage of cows pregnant by 150 DIM (76.9 vs. 61.3%) compared to Controls. Supplementing CP in diets of lactating cows improved productive and reproductive performance.
- Publication
Journal of Animal Science, 2006, Vol 84, p267
- ISSN
0021-8812
- Publication type
Academic Journal