Results: 13

Humoral immunity is not altered in overweight pregnant Crioulo mares

Both pregnancy and obesity can influence significant changes in the immune system. On this basis, the present study proposes to evaluate the humoral immune response of overweight pregnant mares in response to a commercial vaccine. Thirty pregnant Crioulo mares were separated according to body condition s...

Influência das fases da lua na ocorrência do parto de cadelas e gatas

Vet. zootec; 30 (), 2023
A Lua é o satélite natural da Terra e sua participação em diversos aspectos da sociedade tem sido descrito há muitos anos. Nesse quesito, existe uma crença popular que afirma que esse astro possui influência direta sobre o ciclo reprodutivo de diversas espécies. Baseado nisso, estudos a...

Low versus high antral follicle count on the fertility of timed AI Nelore heifers

This study aimed to determine the effect of antral follicle count (AFC), and pubertal status on the fertility of beef heifers. In this study, 230 Nelore heifers, 20±2 months of age, were subjected to an estradiol progesterone-based timed artificial insemination (TAI) program. On Day 0 of the TAI protoco...

Squamous metaplasia of the rete ovarii do not suppress ovarian cyclicity and pregnancy in cattle: case report

Squamous metaplasia of the rete ovarii is an ovarian pathologic change characterized by replacement of the normal single layered cuboidal epithelium of the rete ovarii by a stratified squamous keratinized epithelium. Uterus and ovaries from a local slaughterhouse pregnant crossbreed cow were evaluated th...

Efeito de protocolo hormonal e programa de luz artificial na gestação de éguas receptoras de embrião durante o período de transição de primavera

Rev. bras. ciênc. vet; 27 (2), 2020
O objetivo do estudo foi comparar o efeito das técnicas hormonais e de luz artificial nas éguas receptoras de embrião acíclicas avaliando as taxas de gestação aos 14 e 28 dias durante a fase de transição de primavera. Os 48 animais foram distribuídos aleatoriamente nos grupos: controle (CONT, n=...

Transition period produces changes in blood and body composition in mares

Pesqui. vet. bras; 39 (10), 2019
Clinical and metabolic evaluation is necessary for the monitoring of pregnant and lactating mares, as they reflect the health of the animal. The body condition of the mare is an indicator of reproductive efficiency. The study aimed to determine the possible variations in body and metabolic condition in M...

Effects of maternal high fat intake during pregnancy and lactation on total cholesterol and adipose tissue in neonatal rats

Braz. j. biol; 78 (4), 2018
Abstract Aim Obesity during pregnancy is one of the most established risk factors for negative long-term programming. The aim of the present study was to investigate the effects of maternal consumption of a high-fat diet during pregnancy and lactation on the weight gain, visceral adipose tissue and chol...

Avaliação morfofuncional do corpo lúteo para diagnóstico precoce de gestação 20 dias após IATF em vacas mestiças leiteiras

Pesqui. vet. bras; 38 (10), 2018
A detecção superprecoce de gestação é de grande relevância quando se trata do aumento da produtividade dos rebanhos, na tentativa de redução do tempo de serviço desses animais. Por tal relevância, objetivou-se utilizar a ultrassonografia (US) Doppler como ferramenta para predição de gestaçã...

Effects of hypertension on maternal adaptations to pregnancy: experimental study on spontaneously hypertensive rats

Säo Paulo med. j; 119 (2), 2001
CONTEXT: Animal models for essential hypertension have been used for understanding the human pathological conditions observed in pregnant hypertensive women. OBJECTIVE: To study the possible effects of pregnancy on hypertension and of hypertension on pregnancy in spontaneously hypertensive rats (SHR), an...

Embryotoxicity and anti-implantation effects of Rosemary (Rosmarinus officinalis L.) extract in pregnant rats within preimplantation period

Rev. bras. toxicol; 12 (2), 1999
Previous study made with Rosmarinus officinalis Linné aqueous extract (rosemary) demonstrated that 130 mgkg-1 dose, commonly used as abortive by women, given to pregnant rats during preimplantation period may interfere with embryo implantation, but not disrupt the normal development of conceptus when th...