Effect of prolactin inhibition on thermophysiological parameters, water and feed intake of sun-exposed male Creole goats (Capra hircus) in Guadeloupe (French West Indies)

  • Sergent D
  • Berbigier P
  • Ravault J
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1. 1.|Thermoregulatory ability of sun-exposed Creole bucks (a tropical dwarf breed), measured by respiratory rate (RR), rectal temperature (RT), water and feed intake, was tested in animals with prolactin (PRL) secretion suppressed by 2 bromo-α-ergocryptine and compared to animals with intact PRL secretion. 2. 2.|Bucks with suppressed PRL secretion exhibited a significant rise of RT although their RR increased more than in untreated bucks. This thermoregulation failure occurred only at the hottest hours of the day (12.00) when the radiant heat load was the highest as indicated by "black-globe temperature" (Tg). 3. 3.|Dry matter and water consumption were not affected by the treatment. 4. 4.|In our opinion, PRL plays a role in thermoregulation of the goat under hot climates. © 1988.

Author-supplied keywords

  • Capra hircus
  • Creole dwarf buck
  • Prolactin inhibition
  • black-globe temperature
  • feed intake
  • heat exposure
  • rectal temperature
  • respiratory rate
  • thermoregulation
  • water intake

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  • D. Sergent

  • P. Berbigier

  • J. P. Ravault

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