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Abstract

To estimate the components of (co) genetic variance of milk production of Holstein cows in Panama, 201164 daily test records (TD) of 2480 daughters of 330 sires and 2031 cows in the period from 1996 to 2016, distributed in two herds. Pedigree data contained a total of 4168 animals with records and...

Author(s)
Guerra Montenegro, R.; Hernández Rodríguez, A.; Menéndez Buxadera, A.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2018, 30, 9, pp Article 164
AbstractFull Text

Methane emissions from cattle production systems are of increasing concern in broad sections of the population. The nutritional origin of enteric methane generation and the rapid response it undergoes in response to altered feeding practices, has led to nutrition management being the most studied...

Author(s)
Jaurena, G.; Cantet, J. M.
Publisher
Asociación Latinoamericana de Producción Animal, Maracaibo, Venezuela
Citation
Archivos Latinoamericanos de Producción Animal, 2016, 24, 3, pp 117-122
Abstract

The aim of this study was to estimate the heritability and genetic trends for birth weight (BW), weaning weight adjusted to 240 days (WW) and weight at 16 months of age (W16) in Romosinuano creole cattle. Information from the 1960 to 2011 database Turipaná Research Center was used, employing...

Author(s)
Ossa Saraz, G. A.; Narváez Pérez, H. J.; Noriega Márquez, J. G.; Pérez Garcia, J. E.; Vergara Garay, O. D.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2014, 26, 10, pp Article 191
Abstract

The aim of this study was to estimate the components of (co) variance and genetic parameters for birth weight (BW), weaning weight (WW) and weight at 16 months (W16), using different models unicaracter in a population of cattle Creole Costeño con Cuernos (CCC). 3060 records of BW, 2594 of WW, and...

Author(s)
Pérez García, J. E.; Mitat, A.; Ossa Saraz, G. A.; Simanca, J. C.; Vergara Garay, O. D.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2015, 27, 1, pp Article 6
Abstract

This work was carried out with the aim to compare nitrogen excretion in dairy cows fed with fermented grass silage with different preservatives and their evaluation with different models. The study was divided in two experiments and were prepared four different types of rations and five cows were...

Author(s)
Salcedo, G.
Publisher
ASIS Veterinaria s.l., Zaragoza, Spain
Citation
Albéitar, 2008, No.115, pp 72-75
Abstract

Groups of guineapigs were sensitized by: i/m inj. of 1 mg. live tubercle bacilli in 1 ml. saline, i/m inj. of 1 mg. heat-killed bacilli in 0.1 ml. saline; 10 mg. killed bacilli in 1 ml. saline, in 3 doses (in each hind foot and in one fore foot); i/m inj. of 1 mg. killed bacilli in 0.1 ml. in...

Author(s)
Cedro, V. C. F.; Aquerman, A. L.; Wessels Van Leyden, I. L.
Publisher
Ganad,
Citation
Revista de Investigaciones, 1963, 17, pp 207-216 pp.

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