Pulina, Giuseppe and D'Andrea, Francesco and Dimauro, Corrado and Cappio Borlino, Aldo (2003) Kinetics of fat and protein secretion in dairy cattle, sheep, goats and buffaloes. Italian Journal of Animal Science, Vol. 2 (Suppl. 1), p. 296-298. eISSN 1828-051X. Article.
The negative correlations of fat and protein concentrations and milk yield, existing in all ruminants dairy species (Oftedal, 1984; Mepham, 1987), reflect a deep mechanism regulating the respective kinetics of secretion of carrier (mainly lactose which is the major responsible for the water drawn to the milk) and of fat and protein. Whereas the correlation coefficients are low (from –0.2 to – 0.4), fat and protein daily yield and milk production are positively and strongly linked (r = 0.8÷0.9). It means that more productive animals have higher fat and protein yield, but their milk has lower concentration of these components. The aim of this work is to investigate the relationships between milk, fat and protein yield in all main ruminant dairy species by using a simple mathematical model.
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