Synchronization of ovulation and fixed-time artificial insemination in beef cattle

GA Bó, PS Baruselli - Animal, 2014 - cambridge.org
The main objective of the implementation of artificial insemination (AI) in cattle is to produce
a sustained genetic progress in the herd. Although AI is an old reproductive biotechnology …

Manipulation of follicle development to ensure optimal oocyte quality and conception rates in cattle

PS Baruselli, MF Sá Filho, RM Ferreira… - … in Domestic Animals, 2012 - Wiley Online Library
Contents Over the last several decades, a number of therapies have been developed that
manipulate ovarian follicle growth to improve oocyte quality and conception rates in cattle …

[HTML][HTML] Importance of estrus on pregnancy per insemination in suckled Bos indicus cows submitted to estradiol/progesterone-based timed insemination protocols

MF Sá Filho, JEP Santos, RM Ferreira, JNS Sales… - Theriogenology, 2011 - Elsevier
The objective was to evaluate the effect of estrus occurrence (based on removal of tail-head
marks) on ovarian responses and pregnancy per AI (P/AI; 30 d after AI) in suckled Bos …

[HTML][HTML] Timing of insemination and fertility in dairy and beef cattle receiving timed artificial insemination using sex-sorted sperm

JNS Sales, KAL Neves, AH Souza, GA Crepaldi… - Theriogenology, 2011 - Elsevier
The objective was to evaluate the effects of timing of insemination and type of semen in
cattle subjected to timed artificial insemination (TAI). In Experiment 1, 420 cyclic Jersey …

Fixed-time AI protocols replacing eCG with a single dose of FSH were less effective in stimulating follicular growth, ovulation, and fertility in suckled-anestrus Nelore …

JNS Sales, GA Crepaldi, RW Girotto, AH Souza… - Animal reproduction …, 2011 - Elsevier
The aim of the present study was to evaluate the effects of a single treatment with FSH on
diameter of the largest follicle and on conception rates of suckled Bos indicus beef cows …

[HTML][HTML] Timed artificial insemination early in the breeding season improves the reproductive performance of suckled beef cows

MF Sá Filho, L Penteado, EL Reis, TA Reis, KN Galvão… - Theriogenology, 2013 - Elsevier
The objective was to compare reproductive performance of breeding programs that used
natural service (NS), AI after estrus detection (ED), and timed AI (TAI). In experiment 1, 597 …

Influence of body condition score and its change after parturition on pregnancy rates to fixed-timed artificial insemination in Bos indicus beef cows

RS Carvalho, RF Cooke, BI Cappellozza… - Animal Reproduction …, 2022 - Elsevier
This experiment evaluated pregnancy rates to fixed-time artificial insemination (FTAI) in Bos
indicus beef cows according to their body condition score (BCS) at calving and subsequent …

[HTML][HTML] Equine chorionic gonadotropin improves the efficacy of a timed artificial insemination protocol in buffalo during the nonbreeding season

NAT Carvalho, JG Soares, RM Porto Filho… - Theriogenology, 2013 - Elsevier
Two experiments were conducted to evaluate the effects of equine chorionic gonadotropin
(eCG) treatment on ovarian follicular response, luteal function, and pregnancy in buffaloes …

Different doses of equine chorionic gonadotropin on ovarian follicular growth and pregnancy rate of suckled Bos taurus beef cows subjected to timed artificial …

GA Pessoa, AP Martini, GW Carloto, MCC Rodrigues… - Theriogenology, 2016 - Elsevier
This study evaluated the effect of different doses of eCG (control, 300 or 400 IU)
administered at progesterone (P4) device removal in suckled Bos taurus beef cows …

Resynchronization with unknown pregnancy status using progestin-based timed artificial insemination protocol in beef cattle

MF Sá Filho, MO Marques, R Girotto, FA Santos… - Theriogenology, 2014 - Elsevier
Two experiments were designed to evaluate the use of resynchronization (RESYNCH)
protocols using a progestin-based timed artificial insemination (TAI) protocol in beef cattle. In …