Influence of feeding on goat milk yield and milk composition in organic farming
2003
Spruzs, J. | Selegovska, E. (Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Dept. of Animal Science)
The research was carried out in one of the biggest organic goat farms in Latvia "Licisi". A total of 30 goats were used in feeding trial to determine the effect of Fodder yeast and Yeast culture Yea-Sacc**1026 on goat milk yield and in milk composition. The chemical composition of milk was determined using apparatus Milko Scan 133B. The amount of lysozymes - using the method of nefelometric, the amount of Circulated immune complex (CIC) and cholesterol - using spectrophotometric method. Adding of Fodder yeast and Yeast culture Yea-Sacc**1026 in ration did not affect goat milk yield, but in organic farm for optimization of protein it is possible to include fodder yeast in ration. To increase feed intake we recommend yeast culture Yea-Sacc**1026 in organic goat farm. Milk fat content increased by 0.43% by using yeast culture Yea-Sacc**1026 in ration, but the content of protein in milk were increased by both - Fodder yeast and yeast culture Yea-Sacc**1026. The research results showed that greatest effect of these additives was the improvement of unspecific resistance indicators in goat's milk. The highest increase of lysozymes in milk was monitored under the influence of Fodder yeast: 2.5 times more compare to control group. The highest increase of CIK was monitored after using yeast culture Yea-Sacc**1026: 2 times more in comparison with the control group. Also the use of both feed additives allowed obtaining goat milk with decreased content of cholesterol.
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