Comparative evaluation of hormonal protocol on the performance of crossbred cattle

Abstract

A total of 60 animals (38 cows, 22 heifers) were selected and were divided into three groups of 20 animals each (containing both anoestrus and repeat breeder) in which treatment was performed for 60 days. Group I: control (farmer practice), T group: group I + hormone (double synch), and T group: group I + hormone (Estra double synch). The growth performances were measured in terms of body weight and average daily gain (ADG). Blood collection was done at the start and end of the experiment for assessment of blood biochemical, hematological, and reproductive status of the animals. Results revealed significant improvement in growth and reproductive performances in treatment group as compared to control group. Higher percentage of conception was achieved in group III (60%) followed by group II (55%). The least percentage was in group I (15%), i.e., in control group. So it was found that the effect of treating the reproductive-disordered animals with Estra double synch gave comparatively better result than double synch hormonal application.

Effect of Doublesynch and Estradoublesynch protocols on estrus induction, conception rate, plasma progesterone, protein, and cholesterol profile in anestrus Gir heifers

“…[ 17 ], respectively. The present overall conception rate of 55% with Estradoublesynch protocol is, however, comparable with 55% and 60% obtained with Doublesynch and Estradoublesynch protocols in an earlier study in cattle [ 24 ]. In two more studies, the conception rate with Estadoublesynch protocol was found to be 60%, and 64% in anestrus crossbred cattle and buffaloes, respectively [ 13 - 14 ], Our results for the first service and overall 3 cycles’ conception rates with Doublesynch and Estadoublesynch protocols were also comparable with those of Patel et al .…”

“…The overall pooled mean plasma total protein concentration was significantly lower in anestrus heifers under Doublesynch than Estradoublesynch protocol (7.22±0.09 vs. 7.58±0.07 g/dl). However, in a recent study [ 24 ], an inverse trend was observed with higher value in crossbred cattle under Doublesynch protocol than Estradoublesynch protocol (8.19±0.27 vs. 7.31±0.69 g/dl).…”

Efficacy of different estrus synchronization protocols on estrus induction response and conception rate in acyclic and cyclic crossbred cows

“…In the present study, the first service conception rates of 40.0 and 20.0% found in repeat breeder cows with Double_synch and Estradoublesynch protocols, respectively, compared with report of Kumar et al (2016) using Double_synch during summer and winter seasons in buffaloes (40 and 48%), but was lower than 60-62% reported with both these protocols by Mirmahmoudi and Prakash (2012) and Mirmahmoudi et al (2014) in cycling buffaloes and by Sahoo et al (2017) in cyclic crossbred cows (60 and 55%). However, no report could be located on use of Double_synch and Estradoublesynch protocol in cyclic / repeat breeder bovine documenting cumulative results of two or more cycles to support the present finding, which is up to 80 and 60% in our study.…”

“…However, Naikoo et al (2016) recorded only 33.3% overall conception rate using Ov_synch protocol in anestrus Kankrej cows. Sahoo et al (2017) reported lower conception rates of 60.0 and 55.0% with Estradoublesynch and Double_synch protocols. The present overall conception rates obtained in acyclic cows under Ov_synch and Double_synch protocols were in accordance with Abubaker et al (2013), who also reported 71.4% overall conception rates with both these protocols.…”

Postpartum reproductive performance and blood parameters of Egyptian buffalos treated with some hormones and propylene glycol, or their combination

“…On the other hand, Sahoo et al (2017) showed that when crossbred cattle supplemented with different protocols of hormonal treatment (Doublesynch and Estradoublesynch synchronization) the activities of AST and ALT enzymes did not show any significant effect as compared with the control group. Virmani et al (2011) found that treatment of anestrus Sahiwal cows with OvSynch protocol (PMSG-GnRH-PGF2α-GnRH) caused a non-significant change in the level of serum AST as compared to the level before treatment.…”