Feeding management strategy for sheep in feedlot in hot and humid region

Authors

  • Juana Catarina Cariri Chagas UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO
  • Marcelo de Andrade Ferreira
  • Marcílio de Azevedo
  • Michelle Siqueira
  • Aghata Elins
  • Leonardo Barros

DOI:

https://doi.org/10.14393/BJ-v31n4a2015-26154

Keywords:

Animal handling, Ingestive behavior, Comfort index

Abstract

This study aimed to evaluate the effect of different feeding schedules on the ingestive behavior, dry matter (DM) intake, neutral detergent fiber intake (NDF), respiratory rate (RR) and rectal temperature (RT) of Santa Ines sheep, in feedlot in hot and humid climate region. Five non-castrated male sheep with an initial average weight of 27 ± 3 kgwere distributed in a 5x5 Latin Square experimental design. Feed was offered twice daily, the first meal at 7:00h for all treatments, and the second meal, was offered at: 13:30h, 15:00h, 16:30h, 18:00h, or 19:30h. The RR and RT were measured thrice (morning, afternoon and evening) in a day. The feeding behavior (time of eating, rumination and idleness) was recorded in minutes for period of 24 hours visually. The environmental conditions (air temperature and humidity) was measured to determine the thermal comfort index, THI (Temperature-Humidity Index), which ranged between 72 and 83. There was no evidence that different afternoon feeding times affected rectal temperature during the morning (38.9°C), afternoon (39.0°C) or evening (39.0°C). The respiratory rate during the afternoon was higher for animals fed at 15:00h (55.2 mov.min-1) than for animals fed at 18:00h or 19:30h (29.6 and 31.6 mov.min-1, respectively).  

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Author Biographies

Juana Catarina Cariri Chagas, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO

Universidade Federal Rural de Pernambuco, Doutoranda em Nutrição de Ruminantes, Departamento de Zootecnia.

Marcelo de Andrade Ferreira

PhD

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Published

2015-06-30

How to Cite

CHAGAS, J.C.C., FERREIRA, M. de A., AZEVEDO, M. de, SIQUEIRA, M., ELINS, A. and BARROS, L., 2015. Feeding management strategy for sheep in feedlot in hot and humid region . Bioscience Journal [online], vol. 31, no. 4. [Accessed20 May 2022]. DOI 10.14393/BJ-v31n4a2015-26154. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/26154.

Issue

Section

Agricultural Sciences