Pregnancy loss in beef cattle: A meta-analysis

ST Reese, GA Franco, RK Poole, R Hood… - Animal reproduction …, 2020 - Elsevier
Pregnancy loss in beef cattle causes both management and economic challenges to a
producer. A meta-analysis was conducted to quantify reproductive failures that occur during …

Timed artificial insemination: current challenges and recent advances in reproductive efficiency in beef and dairy herds in Brazil

PS Baruselli, RM Ferreira, MHA Colli… - Animal …, 2018 - animal-reproduction.org
Beef and dairy productivity depends directly on the reproductive efficiency and genetic gain
of the herd, which can be related to the appropriate use of biotechnologies, such as timed …

Ovarian follicle diameter at timed insemination and estrous response influence likelihood of ovulation and pregnancy after estrous synchronization with progesterone …

MF Sá Filho, AM Crespilho, JEP Santos… - Animal Reproduction …, 2010 - Elsevier
The objectives of the present study were to evaluate factors associated with estrous
synchronization responses and pregnancy per insemination (P/AI) in Bos indicus beef cows …

Fixed-time artificial insemination with estradiol and progesterone for Bos indicus cows II: Strategies and factors affecting fertility

OG Sá Filho, M Meneghetti, RFG Peres, GC Lamb… - Theriogenology, 2009 - Elsevier
In Experiments 1, 2, and 3, we evaluated the effects of temporary weaning (TW), equine
chorionic gonadotropin (eCG), and follicle-stimulating hormone (FSH) treatments on results …

[HTML][HTML] Effects of two estradiol esters (benzoate and cypionate) on the induction of synchronized ovulations in Bos indicus cows submitted to a timed artificial …

JNS Sales, JBP Carvalho, GA Crepaldi, RS Cipriano… - Theriogenology, 2012 - Elsevier
The effects of estradiol benzoate (EB) and estradiol cypionate (EC) on induction of ovulation
after a synchronized LH surge and on fertility of Bos indicus females submitted to timed AI …

[HTML][HTML] Equine chorionic gonadotropin and gonadotropin-releasing hormone enhance fertility in a norgestomet-based, timed artificial insemination protocol in suckled …

MF Sá Filho, H Ayres, RM Ferreira, MO Marques… - Theriogenology, 2010 - Elsevier
Two experiments were conducted to investigate the effects of equine chorionic gonadotropin
(eCG) at progestin removal and gonadotropin-releasing hormone (GnRH) at timed artificial …

[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 …

Strategies to improve fertility in Bos indicus postpubertal heifers and nonlactating cows submitted to fixed-time artificial insemination

RFG Peres, IC Júnior, OG Sá Filho, GP Nogueira… - Theriogenology, 2009 - Elsevier
Two experiments were designed to evaluate strategies to increase fertility of Bos indicus
postpubertal heifers and nonlactating cows submitted to a fixed-time artificial insemination …

Expression of estrus modifies the gene expression profile in reproductive tissues on day 19 of gestation in beef cows

S Davoodi, RF Cooke, ACC Fernandes… - Theriogenology, 2016 - Elsevier
The aim of this study was to test the effect of expression of estrus at artificial insemination
(AI) on endometrium, conceptus, and CL gene expression of beef cows. Thirty-six …

Improved fertility in suckled beef cows ovulating large follicles or supplemented with long-acting progesterone after timed-AI

G Pugliesi, FB Santos, E Lopes, É Nogueira, JRG Maio… - Theriogenology, 2016 - Elsevier
We aimed to evaluate the effects and the interaction of size of the preovulatory follicle (POF)
and long-acting progesterone (P4) supplementation after timed-AI on CL function and …