ENVIROMENTAL AND GENETIC ASPECTS RELATED WITH CALVING INTERVAL IN ROMOSINUANO BREED
Journal Title: Revista MVZ Cordoba - Year 2006, Vol 11, Issue 2
Abstract
Objective. To study the environmental and genetic factors that influence on the calving interval of romosinuano females bovines. Materials and methods. 1.911 data were analyzed retrospectively the interval calving of romosinuano females bovines from a herd at the Turipaná Experimental Station of CORPOICA, Cereté, Colombia, from 1980 until 2003. For the study of the environmental factors the method of the minimum squares was used by means of the PROC GLM of SAS procedure. Results. The estimated mean for the interval calving was of 433,60 ± 3,69 days, with a standard deviation of 139,18 days and a coefficient of variation of 32,10%. The estimated heredity through the components of variance of the MTDFREML method was of 0,05 ± 0,04. Conclusion. The variance analysis revealed that the year, the month of birth and the calving number were causes statistically significant of variation of the interval calving.
Authors and Affiliations
Gustavo Ossa S*| Programa Nacional de Recursos Genéticos y Biotecnología Animal, CORPOICA. C.I. Turipaná. Montería, Córdoba - Colombia.Correspondencia: sarazgossa@yahoo.es, Marco Suárez T| Universidad Agraria de La Habana. Facultad de Medicina Veterinaria, Departamento de Producción Animal. La Habana, Cuba., Juan Pérez G| Programa Nacional de Recursos Genéticos y Biotecnología Animal, CORPOICA. C.I. Turipaná. Montería, Córdoba - Colombia.
Keywords
Related Articles
- EP ID EP3054
- DOI -
- Views 436
- Downloads 24
Modeling the lactation curves for milk, fat and protein yield of Holstein cattle in Antioquia, Colombia
Objective. Modeling lactation curves for milk yield and for fat (%) and protein (%) and to determine the main factors affecting the lactation curve. Materials and methods. Official milk control data of 1532 Holstein dair...
RELATIONSHIPS BETWEEN WEIGHT, BODY CONDITION AND MILK PRODUCTION IN COWS UNDER DOUBLE PURPOSE SYSTEM
Objective. Evaluate the relationship between body weight, body condition and milk production in response to supplementation with whole cotton. Materials and methods. Two experimental treatments were applied to 13 cows us...
Diagnosis of contagious ecthyma in goats in a quarantine station in Panama
We report an outbreak of contagious ecthyma (CE) in a herd of goats at Paso Canoas quarantine station, Panama. The goats were adult intact females. Visible clinical signs became apparent from day 13 after the start of qu...
Effect of controlled-release of nitrogen on fermentation and in situ digestibility of Cynodon dactylon
Objective. To evaluate the effect of a controlled-release non protein nitrogen source (CRNpn) on some parameters of rumen fermentation and in situ digestibility of Cynodon dactylon. Materials and methods. Four rumen fi...
EMBRYONIC DEVELOPMENT AND HORMONAL ANTILUTEOLYTIC STRATEGIES FOR EMBRYO TRANSFER PROGRAMS IN CATTLE
During embryonic development multiple interactions are stablished between hormones, growth factors (GF) and different type of molecules, generating a series of signals that unchain the maternal recognition of pregnancy (...