Embrapa Dairy Cattle
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| Molecular genetics is an additional tool which provides information for the detection and exploitation of genes or chromosomal regions with large influence on economic traits. This comes from the development of dense maps of linkage disequilibrium among genetic markers for many livestock species. Although each type of genetic marker has advantages and disadvantages, the only polymorphisms with enough density to meet important requirements for gene mapping are the Single Nucleotide Polymorphisms Status: Completed Start date: Tue Jan 01 00:00:00 GMT-03:00 2013 |
| The breeding programs of Dairy Gir, Guzerat, Red Sindhi and Girolando breeds are conducted at Embrapa Dairy Cattle in work integrated with the respective breeders' associations, as follows: ABCGIL (Brazilian Association of Dairy Gir Breeders), CBMG2/ACGB (Brazilian Center of Guzerat Genetic Breeding / Association of Guzerat and Girolando Breeders Brazil), ABCSindi (Brazilian Association of Red Sindhi Breeders) and Girolando Association. It also includes the participation of the following institu Status: Completed Start date: Fri Aug 01 00:00:00 GMT-03:00 2014 |
| This project articulates, in conjunction with the Brazilian Association of Holstein Cattle Breeders, dairy cooperatives and artificial insemination centers, the restructuring of the management of zootechnical data bases in order to carry out studies on new methodological procedures, essential for the modernization the current genetic evaluation system. The action plans include technical cooperation activities with educational and international research institutions and the affiliation of Brazil Status: Completed Start date: Sat Sep 01 00:00:00 GMT-03:00 2012 |
| Reproductive biotechnologies, particularly in vitro embryo production, can be useful to improve the milk productivity in Brazil by accelerating the genetic gain and reducing the intervals between generations. Genomic selection associated with reproductive biotechnology may be applied at the embryonic stage to promote the selection of embryos with desirable genetic traits and disposal of those with undesirable traits; consequently, maintenance costs of recipient cows would be reduced and efforts Status: Completed Start date: Sun Jun 01 00:00:00 GMT-03:00 2014 |
| raditional breeding has generated significant genetic gain over time. However, this strategy falls short of yielding information on the biological processes involved. Additionally, there are great difficulties for the genetic improvement of characteristics which are measured solely in one gender and/or late in the life span of the animal. With the development of DNA chips it became possible maximizing genetic gain by reducing the generation interval and increasing the intensity of selection. The Status: Completed Start date: Wed Sep 01 00:00:00 GMT-03:00 2010 |
| There is pressure from society for sustainable production systems, which makes it necessary the establishment of sustainability parameters for the production systems. In this regard, animal nutrition can influence the viability and sustainability of the production system, not only by the herd feeding impact on milk production cost but also by the emission of greenhouse gases and excretion of pollutants. The basic premise of precision nutrition is the knowledge of the animal nutritional requireme Status: Completed Start date: Sat Sep 01 00:00:00 GMT-03:00 2012 |
| Pasture as an exclusive feeding source accounts for almost 90% of the beef consumed in Brazil and for most of the nearly 35 billion liters of milk produced annually in the country. It is estimated today that, in Brazil, grasses of the genus Brachiaria are cultivated in approximately 84 million hectares. In Brazil, the most cultivated species of Brachiaria are B. decumbens, B. brizantha, B. humidicola and B. ruziziensis. With the increasing agricult ... Status: Completed Start date: Tue Jul 01 00:00:00 GMT-03:00 2008 |
| Pastures assume a prominent position in the Brazilian agricultural scenario, covering about three quarters of the cultivated area nationwide. In addition to the physical aspect, pastures are the main feeding source for the Brazilian herd. Pastures account for almost 90% of the beef consumed in Brazil and for most of the 21 billion liters of milk produced annually in the country. It is estimated today that in Brazil grasses of the genus Brachiaria are cultivated in approximately 84 millio Status: Completed Start date: Tue Jul 01 00:00:00 GMT-03:00 2008 |
| Dairy cattle breeds of European origin stand out for their high productive and reproductive efficiency in temperate climates, but they usually do not present this efficiency in tropical climate, in conditions such as high temperature and humidity, high incidence of endo and ectoparasites and low level of management. On the contrary, Zebu breeds in selection programs to increase milk production are naturally adapted to such conditions, that is, they produce well in less sophisticated managerial p Status: Completed Start date: Mon Oct 01 00:00:00 GMT-03:00 2007 |
| The Red Sindhi breed is an important genetic resource to be preserved and used in tropical conditions. Some studies have shown small effective population size and high coefficient of inbreeding. These aspects show increased risks of loss of genetic diversity, impairing possible genetic gains to be achieved with selection, and even increasing the risk of future extinction of the breed. The following partner institutions worked on the project: Embrapa Dairy Cattle, Embrapa Tropical Semi-Arid, Emep Status: Completed Start date: Sun Apr 01 00:00:00 GMT-03:00 2012 |