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Effect of melatonin administration prior to calving on milk secretion in the next lactation in dairy cows

Morini Giorgio ; Department of Veterinary-Medical Science, University of Parma, Italy
Maicol Pittella ; Department of Veterinary-Medical Science, University of Parma, Italy
Andrea Poli ; Department of Veterinary-Medical Science, University of Parma, Italy
Fabio De Rensis ; Department of Veterinary-Medical Science, University of Parma, Italy

Puni tekst: engleski, pdf (318 KB) str. 85-89 preuzimanja: 68* citiraj
APA 6th Edition
Giorgio, M., Pittella, M., Poli, A. i De Rensis, F. (2018). Effect of melatonin administration prior to calving on milk secretion in the next lactation in dairy cows . Veterinarska stanica, 49 (2), 85-89. Preuzeto s https://hrcak.srce.hr/223023
MLA 8th Edition
Giorgio, Morini, et al. "Effect of melatonin administration prior to calving on milk secretion in the next lactation in dairy cows ." Veterinarska stanica, vol. 49, br. 2, 2018, str. 85-89. https://hrcak.srce.hr/223023. Citirano 13.07.2020.
Chicago 17th Edition
Giorgio, Morini, Maicol Pittella, Andrea Poli i Fabio De Rensis. "Effect of melatonin administration prior to calving on milk secretion in the next lactation in dairy cows ." Veterinarska stanica 49, br. 2 (2018): 85-89. https://hrcak.srce.hr/223023
Harvard
Giorgio, M., et al. (2018). 'Effect of melatonin administration prior to calving on milk secretion in the next lactation in dairy cows ', Veterinarska stanica, 49(2), str. 85-89. Preuzeto s: https://hrcak.srce.hr/223023 (Datum pristupa: 13.07.2020.)
Vancouver
Giorgio M, Pittella M, Poli A, De Rensis F. Effect of melatonin administration prior to calving on milk secretion in the next lactation in dairy cows . Veterinarska stanica [Internet]. 2018 [pristupljeno 13.07.2020.];49(2):85-89. Dostupno na: https://hrcak.srce.hr/223023
IEEE
M. Giorgio, M. Pittella, A. Poli i F. De Rensis, "Effect of melatonin administration prior to calving on milk secretion in the next lactation in dairy cows ", Veterinarska stanica, vol.49, br. 2, str. 85-89, 2018. [Online]. Dostupno na: https://hrcak.srce.hr/223023. [Citirano: 13.07.2020.]

Sažetak
This study evaluated the effects of melatonin administration 60 days prior to expect calving (drying-off period) on milk yield during the next lactation. Sixty dairy cows were treated with subcutaneous melatonin implants during summer (n=30) or winter (n=30) period. Another 60 animals were not treated and served as the control. There were no differences in the average milk yield between treated and untreated animals (44.5±3.7 and 44.8±5.0 kg/day for melatonin and control cows, respectively). There was an effect of season with a higher winter milk yield than in summer (43.8±5.0 and 47.1±3.0 kg/day for melatonin and control groups, respectively). The interaction between melatonin and season showed no significant effect; however, during winter, milk yield tended to be higher (P=0.06) in control cows than in melatonin treated cows (45.3±3.7 and 49.2±3.0, respectively). This study indicates that treatment with melatonin prior to calving did not modify milk yield during the following lactation. Only a tendency for a reduction in milk yield during winter was observed in melatonin treated cows.

Ključne riječi
melatonin; dairy cow; milk yield

Hrčak ID: 223023

URI
https://hrcak.srce.hr/223023

[hrvatski]

Posjeta: 124 *