Beef cattle

Genetic study of skin thickness and its association with postweaning growth in Nellore cattle: estimation of the genetic parameters

A. M. Maiorano, Oliveira, M. C. S., Cyrillo, J. N. S. G., Albuquerque, L. G., Curi, R. A., Silva, J. A. I. I. V., Maiorano, A. M., Oliveira, M. C. S., Cyrillo, J. N. S. G., Albuquerque, L. G., Curi, R. A., and Silva, J. A. I. I. V., “Genetic study of skin thickness and its association with postweaning growth in Nellore cattle: estimation of the genetic parameters”, vol. 15, p. -, 2016.

The objective of the present study was to estimate genetic parameters for skin thickness (ST) and postweaning weight gain (PWG550) in Nellore cattle. Records were obtained from 152,392 Nellore animals born between 2001 and 2011. ST was measured in the posterior region of the animal’s scapula with a millimeter caliper. The animals were assigned to different contemporary groups, formed on the basis of farm, year, sex, feeding regimen at weaning, date of weaning, feeding regimen at 450 days of age, and date of weighing at 450 days of age.

Heritability of predicted daily enteric methane emissions from growing Nellore cattle

T. L. P. Sobrinho, Mercadante, M. E. Z., Canesin, R. C., Cyrillo, J. N. S. G., Albuquerque, L. G., and Branco, R. H., “Heritability of predicted daily enteric methane emissions from growing Nellore cattle”, vol. 14. pp. 14123-14129, 2015.

The objective of this study was to estimate the heritability of predicted daily enteric methane emissions (PME) from growing Nellore cattle. Dry matter intake (DMI) records of 955 Nellore animals that were born between 2004 and 2013, which were obtained in a postweaning performance test lasting 83 ± 15 days, were used.

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