Efficacy of Intravaginal Progesterone Sponge in Estrus Induction and Fertility Rate in Indigenous Kangayam Cows under Field Conditions

Estrus Synchronization in Crossbred Dairy Cows under Field Conditions

A study was conducted to assess the effect of estrus synchronization technique on fertility and estrus induction response in crossbred cows under field conditions. Totally 30 infertile cows (anoestrous 13 and repeat breeder 17) were selected and divided randomly into two groups having 15 cows each. Estrus synchronization protocol (Triu-B) was adopted in Group I and Group II cows were kept as co...

Estrus induction and fertility response following different treatment protocols in Murrah buffaloes under field conditions

AIM The aim of this study was to evaluate the efficacy of three different treatment protocols for estrus induction and conception rate in postpartum anestrus buffaloes during breeding season under field conditions. MATERIALS AND METHODS The 47 postpartum anestrus buffaloes of the 2nd to 6th parity were divided into three groups. Group 1 (n=16): Buffaloes received cosynch treatment, that is, b...

Comparison of two intravaginal progesterone releasing devices (PRID-Delta vs CIDR) in dairy cows: blood progesterone profile and field fertility.

Objectives were to compare circulating progesterone (P4) profile and pregnancies per AI (P/AI) of two commercial intravaginal P4 devices (PRID-Delta(®) vs CIDR(®)). In Experiment 1, ovariectomized dairy cows (PRID-Delta, n=6 vs CIDR, n=6) were sampled throughout 7 days to measure circulating P4. In Experiment 2 (PRID-Delta, n=399 vs CIDR, n=375), cows were assigned to treatments, as follows: D0...

Comparative efficacy of different estrus synchronization protocols on estrus induction response, fertility and plasma progesterone and biochemical profile in crossbred anestrus cows

AIM To evaluate estrus induction response and fertility including plasma progesterone and biochemical profile following use of three standard hormonal protocols in anestrus crossbred cows. MATERIALS AND METHODS The study was carried out on 40 true anestrus and 10 normal cyclic cows. 10 anestrus cows each were treated with standard intravaginal controlled internal drug release (CIDR) device, O...

Comparison of two intravaginal progesterone releasing devices in lactating dairy cows: blood progesterone profile and field