Embrapa Dairy Cattle
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| In the last century, the wide use of Guzerá breed in crossbreeding led to the expressive reduction of their effective population size, to worrying numbers. Due to its adaptation to diverse environmental conditions, its potential for dual-purpose production (i.e. meat and milk), and its risk of extinction, in 1991, this breed was included by FAO (Food and Agriculture Organization of the United Nations) in the list of genetic resources to be preserved. In view of this, and due to the demand for br ... Status: Completed Start date: Tue Jul 01 00:00:00 GMT-03:00 2008 |
| Despite the growth in the production and productivity rates of dairy farming in Brazil, the globalization of the economy, the fluctuations in domestic and foreign food prices, the changing feeding habits of the population, with the growing interest in functional foods as well as foods from agroecological or organic production systems, coupled with the strong demand for genetically improved and adapted animals, are relevant factors that have challenged research and development agencies in proposi Status: Completed Start date: Mon Sep 01 00:00:00 GMT-03:00 2008 |
| 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 technology for gene editing based on the CRISPR / Cas9 system (Clustered Regularly-Interspaced Short Palindromic Repeats associated to Cas9 endonuclease) consists of an endonuclease (Cas9) guided by RNA (guide RNA - sgRNA), which is capable of editing the genome with accuracy. This system enables the inactivation of genes through cleavage followed by repairing the strands by non-homologous end joining (NHEJ) leading to the knockout of the expression, which results extremely useful to prevent Status: Completed Start date: Mon Jan 01 00:00:00 GMT-03:00 2018 |
| 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 |
| 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 |
| The genus Cynodon (Star and Bermuda grasses), among the existing grasses as alternatives for pasture exploitation, present advantages such as high productivity and forage quality, response to fertilization, resistance to trampling, good adaptation to different types of soils and climate, good tolerance to humid soils and low temperatures. These factors distinguish the genus Cynodon from others that predominate in tropical conditions and justify its choice as a promising alternati Status: Completed Start date: Tue Mar 01 00:00:00 GMT-03:00 2016 |
| 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 |
| One of the largest livestock problems in Southern Brazil has been the scantiness of varieties of forage species more adapted to this region. In addition, due to global warming and the demand for increased productivity with reduced use of inputs, there is a need of studies on germplasm tolerance to abiotic stresses such as drought, and the evaluation of symbiotic organisms to promote biological nitrogen fixation in grasses. Thus, this project aimed to develop improved populations of some of the m Status: Completed Start date: Sun Jan 01 00:00:00 GMT-03:00 2012 |