L.F. Brito
Differential gene expression in the peripheral blood of Chinese Sanhe cattle exposed to severe cold stress
Livestock is an important food resource for the inhabitants of cold regions, such as northern Asia and alpine regions, where agriculture is limited. In these regions, cold stress largely affects livestock production, thereby reducing the productivity and survival of animals. Despite the importance of breeding cold-tolerant animals, few studies have investigated the .. Read More»
Genet. Mol. Res. 16(2): gmr16029593
DOI: 10.4238/gmr16029593
Factors that influence the test day milk yield and composition
The objective of this research was to study the factors that influence the test day milk yield (TDMY) and percentages of protein, fat, lactose, and total dry extract obtained on test day. We evaluated 110,732 weekly milk production records from 1496 goats and 19,271 monthly milk constituent records from 1245 Alpine and Saanen goats, which were collected from 1997 to 2010 in the goat sector at U.. Read More»
Genet. Mol. Res. 12(2): 2013.13.5
DOI: 10.4238/2013.13.5
Genetic evaluation of Alpine goats using different milk control intervals
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,.. Read More»
Genet. Mol. Res. 12(3): 2013.July.24.1
DOI: 10.4238/2013.July.24.1
Genetic and environmental factors that influence production and quality of milk of Alpine and Saanen goats
Data from 1279 lactations of 783 Alpine and Saanen goats of the herd of our university in Minas Gerais, Brazil, were used to study environmental effects on and to estimate genetic parameters for milk production until 270 days of lactation (MP270) and for production and percentages of fat (PFAT and %FAT), protein (PPROT and %PROT), lactose (PLACT and %LACT), and tota.. Read More»
Genet. Mol. Res. 10(4): 2011.December.14.9
DOI: 10.4238/2011.December.14.9
Random regression models using Legendre orthogonal polynomials to evaluate the milk production of Alpine goats
The objective of this study was to identify the best random regression model using Legendre orthogonal polynomials to evaluate Alpine goats genetically and to estimate the parameters for test day milk yield. On the test day, we analyzed 20,710 records of milk yield of 667 goats from the Goat Sector of the Universidade Federal de Viçosa. The evaluated models had combinations of distinct f.. Read More»
Genet. Mol. Res. 12(4): 2013.December.11.1
DOI: 10.4238/2013.December.11.1
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