The generation of genetically modified animals has been suggested as an alternative for the production of recombinant drugs for human or animal use, however it is also an alternative for the generation of more disease resistant or more productive animals. Currently there are several alternatives to generate genetically modified animals, but still inefficient when applied in animals of zootechnical production. This project was part of Embrapa's project network entitled "Animal biotechnology in th ...

Status: Completed     Start date: Thu Jan 01 00:00:00 GMT-03:00 2009

Heat along with high humidity is one of the causes of impaired milk production and fertility of cattle, especially in the summer or in tropical and semitropical regions. Such problems can be aggravated with the prospect of global warming. In the hottest regions of Brazil there is a preference for crossbred Holstein (H) X zebu (Z), mainly Gir (G) cattle that form the Girolando synthetic breed whose composition is mainly ⅝ GxH. Girolando animals are more tolerant to heat than breeds of European or

Status: Completed     Start date: Wed Jul 01 00:00:00 GMT-03:00 2015