Most of the world's bovine herd is found in tropical regions. Bos indicus predominates, due
to their adaptation to the climate and management conditions. Anestrous is the main factor …

Several studies using transrectal ovarian ultrasonic scanning in Bos taurus (B. taurus) cattle
and more recently in Bos indicus (B. Indicus) females evaluated the reproductive cycles of …

The adaptation of Bos indicus cattle to tropical and subtropical environments has led to their
widespread distribution around the world. Although artificial insemination(Al) is one of the …

Various methods and tools have been developed to detect and manage pregnancy loss in
cattle to maximize reproductive efficiency by increasing pregnancy rates and decreasing …

Alguns estudos indicam que altos níveis de progesterona (P4) plasmática diminuem a
pulsatilidade de LH e, conseqüentemente, o crescimento folicular. Isto pode diminuir a …

The objectives of this study were to determine estrus behavior, interval to estrus, duration of
estrus and time of ovulation of Boran, and Boran× Holstein Friesian (HF) breeds. A total of …

Artificial insemination is a key technique to increase reproductive efficiency and the genetic
improvement in cattle. The first report of artificial insemination has been dated to more than …

The world population is 6.4 billion people approximately and is constantly growing. In this
context, there is the expectation that it will reach 8.1 billion in 2030 and nine billion in 2050 …

A sustentabilidade das atividades agropecuárias têm sido foco de inúmeros debates e
projetos nos últimos anos. O desafio de associar o desenvolvimento econômico à …