Rubens Paes de Arruda

• Abstract

  One of the key-points to raising the yield of livestock production systems is the increase in reproductive efficiency, which can be achieved, among other factors, by reducing the age of entry of animals in reproduction. For this, an adequate environment is crucial for sexual development and maximum expression of the animals' genetic potential. It is known that animals subjected to heat st…

  Effects of the Crop-Livestock-Forest System (iCLF) on the reproductive features and puberty of Nelore and Canchim bulls, AP.R

• Abstract

  Studies demonstrate that one of the major limitations to the use of equine frozen semen is observed among stallions in relation to sperm ability to survive the cryopreservation. The ubiquitin is a molecule which is involved in a route of degradation of damaged proteins or errors of synthesis. This process occurs in the passage of sperm through the epididymis, and it´s associated with infe…

  Ubiquitin role in stallions with high and low freezability and application of coenzyme Q-10 as a promoter of sperm mitochondrial function, AP.R

• Abstract

  Aiming to increase pregnancy rates improving the corpusl luteum functionality, leading to an increase in plasmatic progesterone concentration in cyclic mares and recipient mares, some groups have focused research on the use of drugs, such as anti-prostaglandins, progesterone, hCG and GnRH analogs such as buserelin. This experiment aims to evaluate the effects of hCG application in 3 diffe…

  Effects of hCG administration on different estrous cycle days on plasmatic progesterone concentration and uterine and ovarian blood flow, AP.R

(Only some records are available in English at this moment)

• Technical training in zootechnical monitoring of cattle in Crop-Livestock-Forest integration systems, BP.TT
• Technical training in technology applied to the evaluation of young bulls raised in Crop-Livestock-Forest integration systems, BP.TT

• Abstract

  Equine reproduction has increasingly sought to maximize the use of semen through artificial insemination, using semen diluted fresh, cooled and frozen. However, there are still many challenges in the use of these three modalities, which include the manipulation, conservation and deposition of semen in the female's reproductive tract. Pentoxifylline has been studied as an enhancer of sperm…

  Fertilitily of frozen equine semen with addition of pentoxifylline, BP.IC

(Only some records are available in English at this moment)

• Transvaginal ultrasonically guided follicular aspiration of oocytes in cyclic and pregnant mares treated with equine somatotropin, BE.PQ