Spraying Effects on Goat Welfare in Hot and Humid Climate
Titel:
Spraying Effects on Goat Welfare in Hot and Humid Climate
Auteur:
Nazan Darcan Fatin Cedden Okan Guney
Verschenen in:
American journal of animal and veterinary sciences
Paginering:
Jaargang 2 (2007) nr. 4 pagina's 99-103
Jaar:
2007
Inhoud:
Heat stress is one of the major factors adversely affecting animal welfare and thus economicbenefits of farms. This study was designed to determine the effects of three different spraying methodson goats for reducing heat stress. Thirty goats divided into three groups for the trial (One time sprayeda day: OTS, Two times sprayed a day TTS and Non-sprayed: Control). Respiration and pulse rates,rectal and surface temperatures (from head and udder skin) were taken three times a day (08.00-09.00,16.00-17.00 and 12.00-01.00) on hot summer days in July-2005 under Mediterranean conditions. Somebehavioural aspects such as eating, ruminating, drinking, walking and resting, daily feed and waterconsumption were regularly measured. The results showed that rectal temperatures (p£0.005), pulse(p£0.054) and respiration rates (p£0.049), udder (p£0.041) and head temperatures (p£0.033) in threegroups were significantly different. Depending on rising air temperature, rectal, head and uddertemperatures and respiration and pulse rates increased during daytime and retired to normal level atnight time. TTS goats were superior to the others regarding above-mentioned physiological data. TTSgoats spent more time than OTS and Control goats while eating (p£0.02), ruminating (p£0.04) andwalking (p£0.01) but less time while drinking (p£0.01) and resting (p£0.01). Significant changesbetween three groups were ascertained regarding feed and water consumptions. TTS goats consumedmore concentrate feed (p£0.042) and alfalfa hay (p = 0.032) than other two groups, whereas Controlgroups consumed more water (p£0.012) than the others. Ultimately, the spraying has positive effectson yearling goats for alleviating heat stress and improve animal welfare.