A5052834209- Animal Behavior and Welfare Studies
- Reproductive Physiology in Livestock
- Sperm and Testicular Function
- Reproductive Biology and Fertility
- Genetic and phenotypic traits in livestock
- Bee Products Chemical Analysis
- Viral Infections and Vectors
- Effects of Environmental Stressors on Livestock
Universidad de Zaragoza
2019-2024
Escuela Superior Politécnica del Chimborazo
2023
The aim was to assess the reproductive efficiency of different techniques used preserve spermatozoa in artificial insemination semen doses (AI-doses) by evaluating refrigeration at 15°C, cryopreservation and encapsulation. Forty-two hyperprolific sows were treated with buserelin inseminated once a single fixed time. fertility rate, embryonic vesicles viability early mortality (arrested conceptuses) evaluated post-mortem 24th day pregnancy, analysed order effectiveness each proposed...
Current protocols for gilts recommend the deposit of multiple semen doses in cervix each 12–24 h after estrus detection. Our objectives were: (1) to determine effect buserelin and a single fixed-time artificial insemination using new post-cervical technique (FTAI-PCAI) on reproductive productive performance gilts, (2) compare this protocol with conventional detection double PCAI without hormonal induction. In control group (C; n = 240), were inseminated twice (8 12 from onset). Gilts...
Abstract Background Early onset of a gilt´s puberty is needed for adequate economic performance in farms, because it indicates her reproductive and longevity. Therefore, an effective diagnosis needed. Our purpose was to compare different procedures (external characteristics, blood progesterone analysis ultrasonography diagnosis) detect 70 gilts (Topigs TN70; 240 days old) on farm conditions. Postmortem examination the standard reference. Multiple logistic regression used identify which...
El incremento en el número de bovinos dificulta al granjero a observar y monitorear animales individualmente, evento influenciado con la salud emocional del animal. Conjuntamente, los consumidores actuales productos subproductos exigen más control e información sobre bienestar durante su producción. Varias metodologías son descritas para controlar medir La vocalización o expresión vocal animal puede ser medida traducida niveles emocionales positivos negativos que interesan como marcadores...