Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : EFFECT OF MICROCLIMATE ALTERATIONS ON TEMPERATURE-HUMIDITY INDEX (THI), PRODUCTION AND REPRODUCTION TRAITS OF MURRAH BUFFALOES

Auteur : SANDEEP REDDY, SEERAPU

Université de soutenance : Sri Venkateswara Veterinary University, Tirupati

Grade : Master of Veterinary Science (MVSc) 2014

Résumé partiel
The effect of microclimate alteration through fogger and air circulator system during summer was studied by conducting experiments on Murrah buffaloes maintained under loose housing system. Forty lactating buffaloes were divided in 4 groups of 10 each in Completely Randomized Design (4x10 CRD). Group I buffaloes (control) were maintained in loose housing system without any microclimate alteration, while group-II ,III and IV buffaloes were provided with foggers, fans and foggers and fans in their loose houses, respectively from 11.00 A.M. to 4.00 P.M. for a period of 90 days. All the experimental buffaloes were offered 20kg chopped hybrid Napier and adlibitum chopped maize straw as roughage source to meet their dry matter requirements. Concentrate feed was given at the time of milking as per the milk production of buffaloes (1kg concentrate per 2kg of milk). The average Temperature-humidity index (THI) values recorded in experimental Murrah buffalo houses were 82.45±0.16, 77.04±0.10, 80.00±0.14 and 76.78±0.10 for group I (control), group-II (foggers), group-III (fans) and group IV (foggers & fans), respectively. The peak THI in group I, II, III and IV was 86.25±0.16, 79.72±0.13, 83.40±0.17 and 79.32±0.13, respectively and was reached at 12th week of the experiment during May month in all the experimental buffalo houses. THI was significantly (P<0.001) lower in group II, III and IV buffalo houses compared to group I buffalo house. Significant (P<0.001) difference in THI was also observed between group III and II and IV groups of buffalo houses. However, the THI between II and IV buffalo houses were comparable.

Présentation (KrishiKosh)

Version intégrale (2,2 Mb)