Influence of Feeding Linseed on SCD Activity in Grazing Goat Mammary Glands

• Main Authors: Raffaella Tudisco, Biagina Chiofalo, Vittorio Lo Presti, Valeria Maria Morittu, Giuseppe Moniello, Micaela Grossi, Nadia Musco, Raffaella Grazioli, Vincenzo Mastellone, Pietro Lombardi, Federico Infascelli
• Format: Article
• Language: English
• Published: MDPI AG 2019-10-01
• Series: Animals
• Subjects: goat; stearoyl-coa desaturase; cla; linseed
• Online Access: https://www.mdpi.com/2076-2615/9/10/786

The effects of linseed feeding on the stearoyl-CoA desaturase (SCD) activity were evaluated on grazing dairy goats divided into two homogeneous groups (C, control, and L, treated) fed the same amount of concentrate which, for group L was supplemented with linseed. Milk yield was unaffected by the treatment. Group L showed significantly higher milk fat (4.10% vs 2.94%, <i>p</i> &lt; 0.01) than group S. Within milk fatty acids, group C showed significantly higher levels of saturated fatty acids and lower values of mono-unsaturated and polyunsaturated fatty acids. In group L, total CLAs were higher than in group S (0.646% vs 0.311%; <i>p</i> &lt; 0.01) mainly because of the differences in CLA cis9 trans 11 (0.623% vs 0.304%; <i>p</i> &lt; 0.01). In treated animals, SCD activity, measured as cis9 C14:1/C14:0, was lower than in the control group, mainly in July and August.