Calves welfare: the impact of pain

• Grant number: 11/21632-0
• Support Opportunities: Regular Research Grants
• Start date: March 01, 2012
• End date: February 28, 2014
• Field of knowledge: Agronomical Sciences - Veterinary Medicine - Animal Clinics and Surgery
• Principal Investigator: Alice Maria Melville Paiva Della Libera
• Grantee: Alice Maria Melville Paiva Della Libera
• Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Castration of male calves is a common practice adopted in many production systems, and as it involves an important economic sector, it is constantly questioned about their implications in optimizing the value of these animals at slaughter. These practice improve the carcass and meat quality and change the animal's temperament, but the stress of these procedure motivates the evaluation of several techniques of castration associated with various analgesic protocols to check harmful to animal pain and predisposition to diseases. Diseases such enzootic bronchopneumonia of calves, one of the main causes of economic losses in cattle, are conditions constant after stressful events. The aim of the current study is check for interference on systemic and respiratory tract immune response after orchiectomy. These indicators included pain, discomfort and stress through the measurement of cortisol, a pattern of behavior and attitude and haptoglobin determination. To check the immunocompetence hemogram, functional test blood leukocytes by measuring INF-gamma by lymphocytes, percentage of phagocytosis and production intracellular hydrogen peroxide by leukocytes; and cytological analysis, percentage of phagocytosis and intracellular production of hydrogen peroxide cells in the bronchoalveolar region will be evaluated. If the surgical procedure performed, produce minimal or any animal discomfort, it would not increase the susceptibility to disease, mainly bronchopneumonia. The biology of farm animals will be respected, improving their welfare and the expectations of the consumer market will continue to be achieved . (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

HELOISA G. BERTAGNON; CAMILA F. BATISTA; JESSYCA B. BELLINAZZI; MARIANA M. CONEGLIAN; ADRIANO F. MENDES; ALICE M.M.P. DELLA LIBERA. Identificação de dor após orquiectomia em garrotes: desenvolvimento de escala análogo visual em comparação a parâmetros fisiológicos, padrões comportamentais e expressão facial. Pesquisa Veterinária Brasileira, v. 38, n. 3, p. 436-443, 2018-03-00. (11/21632-0)

JESSYCA BERALDI BELLINAZZI; HELOISA GODOI BERTAGNON; CAMILA FREITAS BATISTA; BRUNA PARAPINSKI DOS SANTOS; MARIA GABRIELA BARBOSA LIMA; DANIEL MAGALHÃES LIMA; FERNANDO JOSE BENESI; ALICE MARIA MELVILLE DELLA LIBERA. Efeitos do estresse da orquiectomia na citologia broncoalveolar de bezerros da raça Holandesa. Pesquisa Veterinária Brasileira, v. 33, p. 93-98, 2013-12-00. (11/21632-0)