A5052089026- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Ruminant Nutrition and Digestive Physiology
- Reproductive Biology and Fertility
- Effects of Environmental Stressors on Livestock
- Insect Pest Control Strategies
- Veterinary Equine Medical Research
- Ovarian function and disorders
- Healthcare and Venom Research
- Bee Products Chemical Analysis
- Hibiscus Plant Research Studies
- Paraoxonase enzyme and polymorphisms
- Helminth infection and control
- Parasitic Infections and Diagnostics
- Sperm and Testicular Function
- Coccidia and coccidiosis research
- Endometriosis Research and Treatment
- Seed Germination and Physiology
- Cynara cardunculus studies
- Livestock Management and Performance Improvement
Universidade Federal de Pelotas
2015-2024
Universidade Federal de Rondônia
2013-2015
The objective of this study was to evaluate the effect a PGF2α-analogue (PGF) on ovulation and pregnancy rates after timed artificial insemination (TAI) in cattle. In experiment 1, crossbred dual-purpose heifers, crossover design (3 × 3), were given an intravaginal progesterone-releasing insert (controlled internal drug release [CIDR]) plus 1 mg estradiol benzoate (EB) intramuscularly (im) 250 μg PGF-analogue im Day 0. CIDR inserts removed 5 days follicular wave emergence, heifers randomly...
Abstract: The objective of this work was to compare two types ovulation inducers - estradiol benzoate (EB group) or prostaglandin F2α (PG -, in postpartum dairy cows subjected timed artificial insemination (TAI). Lactating Holstein-Gir crossbred (n=118) with 60 120 days milk production were used study. All treated an intravaginal progesterone-releasing device (CIDR) plus 2 mg (EB) on day 0. CIDR inserts removed 9, and all received 500 µg sodium cloprostenol. Twenty-four hours after removal,...
O objetivo deste estudo foi avaliar o efeito in vitro do extrato aquoso, hidroalcoólico, hidroalcoólico concentrado e óleo essencial de citronela (Cymbopogon wynterianus) sobre larvas teleóginas Riphicephalus (Boophilus) microplus. Os extratos foram preparados folhas secas citronela. Para realizar os testes com as utilizadas seis concentrações (3,12; 6,25; 12,5; 25; 50 100%) cada extrato, além dos grupos controle. A sensibilidade das aos testada utilizando Teste Drummond...
The objective of this study was to evaluate whether timed artificial insemination (TAI) according the diameter dominant preovulatory follicle (POF) would improve pregnancy rates in beef cows. In Experiment 1, a retrospective meta-analysis 5 oestradiol- or gonadotropin-releasing hormone-based TAI experiments from 2011 2014 performed interval luteolysis ovulation. these experiments, crossbred cows (Gyr × Holstein; n = 60) were examined by ultrasonography at 12-h intervals...
This study aimed to evaluate the role of prostaglandin F2α (PGF) on ovulation. In Experiment 1, cows were randomly allocated two treatments receive 150 μg d-Cloprostenol (PGF Group, n = 12) or 2 mL NaCl 0.9% (Control 11) and CIDRs, removed 4 days later. No cow ovulated in Control PGF groups. 2, separated into experimental groups injections (n 9) NaCL 9). this experiment, ovulation was not observed any cows. 3, ovariectomized three 300μg analog 5), 100μg Lecirelin (GnRH 5) PBS 4). The LH...
The objective of this study was to determine the effect a short five-day (5 d) progesterone-based timed artificial insemination (TAI) protocol on time ovulation and fertility in dairy water buffaloes. In experiment 1, 30 buffaloes were subjected one two estrous synchronization protocols. Females control group (n=17) administered 2 mg estradiol benzoate (EB), an intravaginal progesterone-releasing device (CIDR) inserted day -12. On -3, CIDR inserts removed all cows treated with 150 ?g...
O objetivo deste estudo foi demonstrar a eficácia do Toltrazuril 5% no tratamento da coccidiose subclínica, através avaliação excreção de oocistos nas fezes e ganho peso bezerras leiteiras naturalmente infectadas por Eimeria spp. durante as três primeiras semanas vida. Foram selecionadas 22 bezerras, com 20 35 dias idade, mantidas mesmas condições criação presença confirmada (dia -7 estudo). As foram divididas aleatoriamente nos seguintes grupos experimentais: Tratamento (n=13), que...
The aim of this study was to determine the effect flunixin meglumine (FM) following timed artificial insemination (TAI) on pregnancy rate in lactating Holstein cows. Eighty-seven dairy cows (30.3 ± 10.2 kg milk/day) with average 181 152 days milk (DIM) were given a 3 mg norgestomet ear-implant and 2 injection estradiol benzoate i.m. Day 0. On 7, 0.53 sodium cloprostenol injected, implant removed day 9. Two later, 100 μg gonadorelin followed by TAI 12 h later. Cows randomly assigned into one...
Treatment with gonadotropin-releasing hormone (GnRH) has been used to induce ovulation in prepubertal heifers. The objective of this study was evaluate whether peripubertal heifers will continue ovulate at regular intervals (i.e. attain puberty) after GnRH treatment. Prepubertal crossbred Hereford heifers, 11.0 ± 0.5 months age, 344 26 kg body weight, and random stages ovarian follicular wave status, were assigned 2 groups (age- weight-matched) given (n = 24) or no treatment (Control, n 22)...
This study evaluated the effect of a prostaglandin F2? (PGF) analogue as an ovulatory stimulus in dairy cows and buffaloes raised Amazon biome. To this end, three experiments were performed state Rondônia, located In Experiment 1, 22 lactating received 2 mg intramuscular (I.M.) estradiol benzoate (EB) on day 0 intravaginal progesterone-releasing device (CIDR) from to 9 protocol. On days 8 9, all given 500 ?g I.M. d-cloprostenol (PGF analogue). 10, divided into two groups receive PGF group, n...