Preweaning grouth traits in calves dual purpose system in the municypality of Arauca
Data from pre-weaning growth of crossbred calves, born during the years 2009 and 2010 was anlyzed. Three growth traits: birth weight (BW, n = 70), weaning weight adjusted to 270 days of age (PD, n = 69) and daily weight gains between birth and weaning (GDP, n = 69) were considered using General Line...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | Colombia |
| Institución: | Universidad Cooperativa de Colombia |
| Repositorio: | Repositorio UCC |
| OAI Identifier: | oai:repository.ucc.edu.co:20.500.12494/49719 |
| Acceso en línea: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84864618052&partnerID=40&md5=baf60ec2e9f9d4f35f06c871097b7d40 https://hdl.handle.net/20.500.12494/49719 |
| Access Level: | acceso abierto |
| Palabra clave: | DAILY DUAL PURPOSE HYBRID PREWEANING GAIN WEANING WEIGHT |
| Sumario: | Data from pre-weaning growth of crossbred calves, born during the years 2009 and 2010 was anlyzed. Three growth traits: birth weight (BW, n = 70), weaning weight adjusted to 270 days of age (PD, n = 69) and daily weight gains between birth and weaning (GDP, n = 69) were considered using General Linear Models (GLM) of SAS statistical package. Comparison of means was done by Tukey test. The estimated mean was 28,92 ± 3,2 Kg., 137,65 ± 28,04 Kg., and 362,3 ± 86,96 g/d for the PN, PD and GDP, respectively. A variation coefficient of 6,82, 15,85 and 21,60% was found for the same characteristics. The farm was a significant factor of variation in growth traits BW and WW (P<0,01) and GDP at the 5% statistical probability (P<0,05). The sex of calf affected (P<0,05) BW and PD and was not significant for GDP (P>0,05). The year of birth of the offspring had a significant effect (P<0,05) on the PN and had no effect on PD and GDP (P>0,05). The breeding race in farm did not affect (P>0,05) the birth weight and weaning had no effect (P<0,05) on GDP. We conclude that environmental factors analyzed: farm, year of birth and sex of calf and the effect of racial group affected preweaning growth parameters studied. |
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