5 documents found, page 1 of 1
Genetic evaluation of milk yield in Alpine goats for the first four lactations ...
Torres, R.A.; Carneiro, A.P.S.; Nascimento, M.; Silva, F.F.; Silva, L.P.; Rodrigues, M.T.; Ventura, H.T.; Silva, F.G.Random regression models have been used in evaluating test-day milk yield, providing accurate estimates of genetic values in animals. However, herd evaluation with only information from the first lactation may not be the best option from an economic perspective. Other factors should be taken into account, particularly other lactations. Our objective in this study was to analyze the genetic divergence between th...
Influence of animals obtained using embryo transfer on the genetic evaluation o...
Mota, R.R.; Lopes, P.S.; Marques, L.F.A.; Pessoa, M. Conceição; Silva, L.P.; Torres, R. Almeida; Resende, M.D.V.Weight records of Simmental beef cattle were used in a genetic evaluation of growth with and without embryo transfer (ET). A random regression model in which ET individuals were excluded (RRM1) contained 29,510 records from 10,659 animals, while another model that did not exclude these animals (RRM2) contained 62,895 records from 23,160 animals. The fixed and random regressions were represented by continuous fu...
Genetic evaluation of Alpine goats using different milk control intervals
Silva, F.G.; Torres, R.A.; Brito, L.F.; Silva, L.P.; Menezes, G.R.O.; Brito, L.C.; Euclydes, R.F.; Rodrigues, M.T.The objective of this study was to compare the results of genetic evaluations by using different milk control intervals to reduce the cost of milk yield controls without harming the quality of genetic evaluation of the animals. We analyzed test day milk yield data from the Goat Sector of Universidade Federal de Viçosa. After editing and checking for errors in the database, there were 20,710 records of test day ...
Evaluation of alternative schemes for recording body weights in meat-type quail...
Silva, L.P.; Ribeiro, J.C.; Leite, C.D.S.; Sousa, M.F.; Bonafé, C.M.; Caetano, G.C.; Crispim, A.C.; Torres, R.A.Data from 8759 meat-type quails from the UFV1 strain and 9128 from the UFV2 strain were used to assess the possibility of reducing the number of body weight records in genetic evaluations. The evaluated animals were weighed weekly since hatching to the 6th week of life, with up to 7 records of body weight for each bird. The data were evaluated by random regression models, with 9 alternative schemes of data reco...
Pandora's flying box - Borrelia burgdorferi sensu lato prevalence in Ixodes spe...
Norte, A. C.; Ramos, J.A.; Núncio, M.S.; Margos, G.; Fingerle, V.; Adamik, P.; Alivizatos, H.; Barba, E.; Barrientos, R.; Cauchard, L.; Csörgo, T.Birds are important hosts for ticks and may act as reservoirs for several zoonotic pathogens. Because of their high mobility, especially of the long distance migratory species, they can act as dispersers for ticks and pathogens, ultimately affecting their distribution and phylogeography.