Research Article | OPEN ACCESS
Physiological Parameters in Different Breeds of Rams as a Measure of Adaptation to Environmental Conditions in the Federal District-Brazil
1Adriano Braga Brasileiro de Alvarenga, 2, 3Bruno Stefano Lima Dallago, 2, 3Concepta McManus, 4Alexandre Floriani Ramos, 2Adriana Morato de Menezes, 2Aline Melgaco Bezerra de Almeida and 4Francisco Ernesto Moreno Bernal
1Universidade Federal do Para, Campus Soure-Marajo, Ciencias Biologicas, Soure/PA, Brazil. CEP: 68.870-000
2Faculdade de Agronomia e Medicina Veterinaria da Universidade de Brasilia, Brasilia/DF, Brazil. CEP: 70.910-900
3Instituto Nacional de Ciencia e Tecnologia-Informacao Genetico-Sanitaria da Pecuaria Brasileira (CNPq/INCT/IGSPB), Belo Horizonte/MG, Brazil
4Embrapa Recursos Geneticos e Biotecnologia, Parque Estacao Biologica, Av. W5 Norte, BrasÃlia/DF, Brazil. CEP: 70,770-900
International Journal of Animal and Veterinary Advances 2013 6:256-263
Received: August 21, 2013 | Accepted: September 03, 2013 | Published: December 20, 2013
Abstract
This study aims to assess relationships between some aspects of physiology and haematology of rams from different breeds, as well as the possible influences of environmental and climatic conditions (dry or wet seasons) on animal physiology. Eighteen purebred rams from six different breeds (Santa Inês, Bergamasca, Hampshire Down, Texel, Ilê de France and Dorper) and origins were used in two seasons in Central Brazil. Body Weight (BW), Rectal Temperature (RT) and blood parameters were measured and compared their selves between dry and wet seasons and between breeds. BW, RT, RBC (red blood cells), MCV (mean corpuscular volume), MCHC (mean corpuscular haemoglobin concentration) and TPP (total plasma protein) were highly significant (p<0.001) between different breeds. Season did not significantly (p>0.001) affect BW, RT, PCV (packed cell volume), RBC, Hb (haemoglobin) and PPT. The effect of season on breed was significant (p<0.01) for BW, PCV, RBC and Hb. Hair breeds such as Santa Inês (SI) had greater adaptability to climatic conditions in the region in comparison with other breeds and this reinforces the importance of breeding programs taken in account the characteristics expressed in the place where animal will live.
Keywords:
Adaptation, breeds, physiological parameters, rams,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2041-2908
ISSN (Print): 2041-2894 |
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