Comparison of the parameters of the lactation curve between normal and difficult calvings in Iranian Holstein cows
To evaluate effect of dystocia on the lactation curve characteristics for milk yield and composition in Holstein cows, six non-linear models (Brody, Wood, Sikka, Nelder, Dijkstra and Rook) were fitted on 5,917,677 test day records for milk yield (MY), fat (FP) and protein (PP) percentages, fat to pr...
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Format: | Article |
Language: | English |
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Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
2019-04-01
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Series: | Spanish Journal of Agricultural Research |
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Online Access: | http://revistas.inia.es/index.php/sjar/article/view/13673 |