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Impact of a trace element supplementation programme on health and performance of cross-breed (Bos indicus x Bos taurus) dairy cattle under tropical farming conditions: a double-blinded randomized field trial

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Abstract
Small-scale urban dairy farms (n=16) in and around Jimma, Ethiopia with cross-bred (Bos indicusxBos taurus) cows were enrolled in a double-blinded intervention study to investigate the effect of a trace element supplementation programme on trace element status and milk concentrations as well as performance [body condition score (BCS), milk yield, leptin], milk composition, antioxidant status (ferric-reducing ability of plasma (FRAP), thiobarbituric acid-reactive substances (TBARS)], blood biochemistry, serum proteins and immune response (antibody titre upon rabies vaccination). The farms were allocated to a (1) placebo or (2) Cu, Zn, Se, Co and I supplementation treatment for 150d. On days 0 and 120, four lactating cows per farm were sampled for milk and plasma, and on day 150 for serum, following primo-vaccination. Cu deficiency was present in 17% and marginal Se deficiency in 30% of initially sampled cows, while no Zn shortage was detected. Over 120days, trace element supplementation caused a bigger increase in plasma Se and Cu concentrations, but also a larger decrease of plasma Fe concentrations. A larger increase in milk Se concentrations was observed in the supplemented group, whereas none of the other elements were affected. BCS decreased more over time in the supplemented group. None of the other parameters of performance and antioxidant status nor milk composition or blood biochemistry was affected by treatment. Antibody response to rabies vaccination did not differ between groups, whereas 1-globulins tended to be lower and -globulins tended to be higher in the supplemented group. In conclusion, despite improved Cu and Se status and Se concentrations in milk, cows on tropical urban dairy farms did not seem to benefit from trace element supplementation, with respect to the parameters investigated.
Keywords
STEERS, COPPER STATUS, FED DIETS, MILK, ZINC-DEFICIENCY, HOLSTEIN COWS, REPRODUCTIVE-PERFORMANCE, SELENIUM SUPPLEMENTATION, LEPTIN CONCENTRATIONS, zebu, supplements, IMMUNE-RESPONSE, mineral, deficiency

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Citation

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Chicago
Dermauw, Veronique, Ellen Dierenfeld, Gijs Du Laing, Johan Buyse, Bernard Brochier, Steven Van Gucht, Luc Duchateau, and Geert Janssens. 2015. “Impact of a Trace Element Supplementation Programme on Health and Performance of Cross-breed (Bos Indicus x Bos Taurus) Dairy Cattle Under Tropical Farming Conditions: a Double-blinded Randomized Field Trial.” Journal of Animal Physiology and Animal Nutrition 99 (3): 531–541.
APA
Dermauw, V., Dierenfeld, E., Du Laing, G., Buyse, J., Brochier, B., Van Gucht, S., Duchateau, L., et al. (2015). Impact of a trace element supplementation programme on health and performance of cross-breed (Bos indicus x Bos taurus) dairy cattle under tropical farming conditions: a double-blinded randomized field trial. JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION, 99(3), 531–541.
Vancouver
1.
Dermauw V, Dierenfeld E, Du Laing G, Buyse J, Brochier B, Van Gucht S, et al. Impact of a trace element supplementation programme on health and performance of cross-breed (Bos indicus x Bos taurus) dairy cattle under tropical farming conditions: a double-blinded randomized field trial. JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION. 2015;99(3):531–41.
MLA
Dermauw, Veronique, Ellen Dierenfeld, Gijs Du Laing, et al. “Impact of a Trace Element Supplementation Programme on Health and Performance of Cross-breed (Bos Indicus x Bos Taurus) Dairy Cattle Under Tropical Farming Conditions: a Double-blinded Randomized Field Trial.” JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION 99.3 (2015): 531–541. Print.
@article{4397849,
  abstract     = {Small-scale urban dairy farms (n=16) in and around Jimma, Ethiopia with cross-bred (Bos indicusxBos taurus) cows were enrolled in a double-blinded intervention study to investigate the effect of a trace element supplementation programme on trace element status and milk concentrations as well as performance [body condition score (BCS), milk yield, leptin], milk composition, antioxidant status (ferric-reducing ability of plasma (FRAP), thiobarbituric acid-reactive substances (TBARS)], blood biochemistry, serum proteins and immune response (antibody titre upon rabies vaccination). The farms were allocated to a (1) placebo or (2) Cu, Zn, Se, Co and I supplementation treatment for 150d. On days 0 and 120, four lactating cows per farm were sampled for milk and plasma, and on day 150 for serum, following primo-vaccination. Cu deficiency was present in 17\% and marginal Se deficiency in 30\% of initially sampled cows, while no Zn shortage was detected. Over 120days, trace element supplementation caused a bigger increase in plasma Se and Cu concentrations, but also a larger decrease of plasma Fe concentrations. A larger increase in milk Se concentrations was observed in the supplemented group, whereas none of the other elements were affected. BCS decreased more over time in the supplemented group. None of the other parameters of performance and antioxidant status nor milk composition or blood biochemistry was affected by treatment. Antibody response to rabies vaccination did not differ between groups, whereas 1-globulins tended to be lower and -globulins tended to be higher in the supplemented group. In conclusion, despite improved Cu and Se status and Se concentrations in milk, cows on tropical urban dairy farms did not seem to benefit from trace element supplementation, with respect to the parameters investigated.},
  author       = {Dermauw, Veronique and Dierenfeld, Ellen and Du Laing, Gijs and Buyse, Johan and Brochier, Bernard and Van Gucht, Steven and Duchateau, Luc and Janssens, Geert},
  issn         = {0931-2439},
  journal      = {JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION},
  language     = {eng},
  number       = {3},
  pages        = {531--541},
  title        = {Impact of a trace element supplementation programme on health and performance of cross-breed (Bos indicus x Bos taurus) dairy cattle under tropical farming conditions: a double-blinded randomized field trial},
  url          = {http://dx.doi.org/10.1111/jpn.12209},
  volume       = {99},
  year         = {2015},
}

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