Effect of dietary supplementation with Saponaria officinalis root on rumen and milk fatty acid proportion in dairy cattle
Journal Title: Animal Science Papers and Reports - Year 2016, Vol 34, Issue 3
Abstract
The objective of the present study was to evaluate the impact of powdered Saponaria officinalis (SO) root on fatty acid (FA) proportion in the rumen fluid and milk of dairy cows. The SO is a good source of triterpenoid saponins and it can be considered as a promising, natural additive for modulating FA proportion in ruminant’s milk. Three rumen cannulated Polish Holstein cows were assigned to a 3 x 3 Latin square design. The cows received the following treatments: basal diet (Control), basal diet supplemented with either 440 g/day/animal (SO1) or 660 g/day/animal (SO2) of S. officinalis root. In the rumen fluid of cows fed SO2, trans-11 C18:1, cis-9, cis-12 C18:2 and total n-6 FA were significantly elevated, while concentration of cis-9, trans-11 C18:2 decreased. The SO2 diet significantly increased the milk yield and milk fat content. As far as the milk is concerned, the proportion of five FAs increased in response to SO treatment (trans-11 and cis-9 C18:1, cis-9, cis-12 C18:2 and its conjugated isomers cis-9, trans-11 and trans-10, cis-12). The results demonstrated that powdered SO root may effectively modulate milk FA proportion in dairy cows.
Authors and Affiliations
Joanna Szczechowiak, Małgorzata Szumacher-Strabel, Mohamed El-Sherbiny, Magdalena Bryszak, Adam Cieślak
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