Resumo

SANCHEZ, Tania; LAMELA, L; LOPEZ, O  e  BENITEZ, M. Influence of the Sorbifauna probiotic on milk production and quality of grazing crossbred milking cows. Pastos y Forrajes [online]. 2015, vol.38, n.3, pp. 183-188. ISSN 2078-8452.

The objective of the research was to evaluate the inclusion of the Sorbifauna probiotic on milk production and its quality of Holstein × Zebu cows which grazed in an association of Leucaena leucocephala cv. Cunningham and Megathyrsus maximus cv. Likoni; the study was conducted in the period May-June, 2013, at the Pastures and Forages Research Station Indio Hatuey. Twelve cows (clinically healthy) were used in a Switch Back design, with three treatments: A: grazing in the association + 60 g of additive, B: grazing in the association + 90 g of additive, and C: grazing in the association + 120 g of additive. The pasture availability and milk production were measured, for which the average initial milk production, (10,0 ± 2,2 kg), in 84 ± 54 days of lactation, was taken into consideration. In addition, the fat, protein, lactose and total solid percentages were determined. The milk production was 11,9; 12,1 and 12,2 kg/cow/day, without significant differences among the treatments, just like for fat (3,8; 4,0 and 3,9 %) and protein (3,3; 3,4 and 3,4 %); in the lactose and total solids a similar performance was also obtained. It is concluded that there were no significant differences in the milk production and quality in medium-potential cows when including the Sorbifauna probiotic in a silvopastoral system, for which it is recommended to evaluate it in grass systems without fertilization.

Palavras-chave : Leucaena leucocephala cv. Cunningham; Megathyrsus maximus cv. Likoni; silvopastoral system.

        · resumo em Espanhol     · texto em Espanhol     · Inglês ( pdf ) | Espanhol ( pdf )