Vliyanie zhvachnykh protsessov na molochnuyu produktivnost' korov raznykh porod | The influence of rumination processes on the milk productivity of various cow breeds
2014
Podpalaya, T., Mykolayiv National Agrarian University, Mykolayiv (Ukraine) | Marykina, O.
The article presents the study results concerning the breed traits of ruminant processes in cows in the first lactation period. It was established that under equal feeding and housing conditions, the Holstein cows have an advantage: the duration of rumination compared with Ukrainian Black Pied and Ukrainian Red Spotted dairy breeds. This is reflected in the level of the average daily milk yield. Among the studied breeds, Holstein cows recorded the highest level of daily milk yield (44,9±4,57 kg): by 15.1 kg more (P more than 0,95) compared with the Ukrainian Red Spotted breed and by 13.7 kg more (P less than 0,95) compared with Ukrainian Black Pied breed. The rhythm of rumination affects the productivity of animals, fact confirmed by the highly negative correlative relationship (r=-0,97 when P more than 0,999) recorded by the cows of Ukrainian Red Spotted dairy breed.
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