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Behavior of grazing purebred and crossbred dairy cows under tropical conditions

By J. M. Matias

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Abstract

Recent dairy development thrusts in the Philippines focus on increasing existing stock through the importation of dairy animals, particularly Holstein x Sahiwal crossbreds. This study was conducted to determine and compare the behaviour of purebred Holstein and crossbred (Holstein x Sahiwal) dairy cows under tropical conditions. A total of 10 dry cows (5 purebreds, 5 crossbreds) were used in the study following a 2 x 5 factorial experiment with the two breeds and three grazing periods (0700-1000 h, 1000-1400 h, 1400-1700 h) as factors. Observations were done in a mixed-grass pasture lot dominated by Panicum maximum, Pennisetum purpureum and Cynodon plectostachyus. Behavioural observations were made every half hour and the frequency of grazing, walking, standing, lying down, ruminating, drinking and urinating/defaecating were noted. Furthermore, respiratory frequency was also monitored in each animal. Mean temperature and humidity values in the pasture area during the study were 33.2 degrees C and 68

Date 1998
Publication Title Applied Animal Behaviour Science
Volume 59
Issue 1/3
Pages 235-243
ISBN/ISSN 0168-1591
Language English
Author Address Dairy Training and Research Institute, College of Agriculture, University of the Philippines Los Banos College, Laguna 4031, Philippines.
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Tags
  1. Animal behavior
  2. Animal nutrition
  3. ASEAN Countries
  4. Asia
  5. Breed differences
  6. Cattle
  7. Crossbreds
  8. Developed countries
  9. Feeding behavior
  10. Grazing
  11. Mammals
  12. pastures
  13. peer-reviewed
  14. Philippines
  15. Tropics
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  1. peer-reviewed