Effects of daily protein intake levels on the oral stereotypic behaviours in energy restricted lambs |
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| Institution: | 1. Department of Animal Science, Agricultural Faculty, Çanakkale Onsekiz Mart University, 17100 Çanakkale, Turkey;2. Department of Animal Science, Agricultural Faculty, Trakya University, 59030 Tekirdag, Turkey;1. Department of Environmental Biology and Public Health, Faculty of Experimental Sciences, CEI-MAR, University of Huelva, Avda. Fuerzas Armadas s/n, 21071, Huelva, Spain;2. Laboratorio de Recursos Pesqueros, Ctra. Cartaya-Punta Umbría, 21459, Cartaya, Spain;3. IFAPA Centro Agua del Pino, Ctra. Cartaya-Punta Umbría, 21459, Cartaya, Spain;1. University of Central Lancashire, Preston, UK;2. Ashworth Research Centre, Mersey Care NHS Trust, UK;3. University of Liverpool, UK |
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| Abstract: | Effects of daily protein intake levels on oral stereotypic behaviours (OSB) in energy restricted lambs were investigated. Thirty-eight male lambs were randomly allotted to three treatments. Lambs in the first group (AL) received their ration (12.1 MJ ME/kg DM; 148.6 g CP/kg DM) at ad libitum level, whereas the second group (RP1) (12.1 MJ ME/kg DM; 177.4 g CP/kg DM) and the third group (RP2) (12.1 MJ ME/kg DM; 214.9 g CP/kg DM) received their rations at restricted levels. Recording of behaviours was carried out once a week using time sampling technique during a 7-week experimental period. OSB were significantly (P<0.001) affected by the treatments. RP2 group showed higher oral stereotypies than the others. It was concluded that increasing the daily protein intake under energy restricted conditions may have additive effects on the development of stereotypic oral behaviours. |
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