Some analytical studies in relation to cyclicity of buffalo-Heifers

ABSTRACT

In this study, 40 non-cycling buffalo-heifers were used. The heifers were treated by exogenous sex steroids [Synchro-Mate-B] plus equine chorionic gonadotrophins [eCG] with or without carboxylic ionophore [Lasalocid] supplement for induction of estrus. Blood samples were collected from all heifers before treatment and from 10 positively responded heifers after treatment. Blood samples of 10 responded heifers [before and after treatment] in each group were subjected to study the effect of hormonal induction of cyclicity on metabolic profile testing. The results revealed that, the hormonal treatment without Lasalocid supplement did not alter Hb concentration, PCV%, ALT activity, total protein, albumin and urea nitrogen concentrations. While, the activities of plasma AST and ALP were significantly decreased and CPK activity, glucose and cholesterol concentrations were increased. Synchro-Mate-B implants plus eCG administration in Lasalocid supplemented cycling heifers did not lead to significant alterations in most of metabolic profile testing except PCV% and glucose concentration as compared to non-cycling buffalo-heifers supplemented with Lasalocid. Concentrations of plasma macro- and micro elements [Ca, Mg, Na, K and lithium] after induction of estrus by sex steroids plis eCG were not significantly differed in heifers either supplemented or not with Lasalocid. Thus, we can conclude that usage of Synchro-Mate-B implant plus eCG to induce estrus in prepubertal buffalo-heifers did not alter most of the metabolic profile parameters