THE EFFECT OF ANTIBIOTIC IONOPHORES ON MILK PRODUCTION AND COMPOSITION IN ANGORA GOATS.
P.R. KING AND D. WENTZEL.
GROOTFONTEIN COLLEGE OF AGRICULTURE, MIDDELBURG CAPE, 5900.
There have been allegations from practice of a possible detrimental effect of ionophores on milk production and composition in lactating small stock. Alkaline-ionophore treated whole grain is commonly used as a supplement for lactating Angora goats. The effect of these ionophores on lactation in Angora goats was therefore investigated.
Four groups of ten lactating does were supplemented with chocolate grain containing either no ionophores, lasalocid sodium, salinomycin and monensin sodium respectively. The does were milked at regular intervals during the lactation period. Milk production was determined and a milk sample was analysed for protein, fat, ash, phosphate and calcium content.
No significant differences (p > 0.05) in milk production or milk composition were found among the various groups.
It is concluded that the inclusion of ionophores at the recommended rate in the diet of lactating Angora ewes has no detrimental effect on milk production and milk composition.
Proceedings 28th SASAP congress