Behavior of immunocastrated pigs
ABSTRACT The objective of this study was to evaluate the behavior of immunocastrated male pigs compared with females and castrated males during the period before and after full immunization. A total of 30 animals were divided into three treatments, with ten animals in each (females, barrows, and imm...
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Sociedade Brasileira de Zootecnia
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doaj-fb105518a9ec4709a779e659d415c23c2020-11-24T22:32:50ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1806-929045954054510.1590/s1806-92902016000900006S1516-35982016000900540Behavior of immunocastrated pigsRita de Kássia Silva dos SantosFabiana Ribeiro CaldaraMarta MoiLuan Sousa dos SantosIrenilza Alencar NääsLuciana FoppaRodrigo Garófallo GarciaRusbel Raul Aspilcueta BorquisABSTRACT The objective of this study was to evaluate the behavior of immunocastrated male pigs compared with females and castrated males during the period before and after full immunization. A total of 30 animals were divided into three treatments, with ten animals in each (females, barrows, and immunocastrated males). The experiment was divided into three periods: 70 to 80 days of age (period 1), 81 to 110 days of age (period 2), and 111 to 140 days of age (period 3). The behavior of animals during these stages was evaluated. Immunocastrated males showed a higher rate of aggressive and sexual behavior during period 2, which decreased after the second vaccine dose. Both barrows and immunocastrated males presented high locomotion in period 1, reducing the frequency of this activity in period 3. All analyzed animals had a higher level of activities such as drinking, playing, and sexual behavior in period 1 than in the other periods, decreasing during the experiment. The remaining behavioral responses did not differ between the studied categories. Immunocastrated males had higher proportions of undesirable behaviors (aggressive and sexual) related to the surgically castrated males and females, and these were reduced after the second vaccine dose. Immunocastration is effective in the reduction of behaviors such as agonistic and sexual at the same levels observed in females and surgically castrated males. However, immunocastrated pigs are more subject to these undesirable behaviors before full immunization.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000900540&lng=en&tlng=enimmunocastrationsexual activitysus scrofaswine productionwelfare |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rita de Kássia Silva dos Santos Fabiana Ribeiro Caldara Marta Moi Luan Sousa dos Santos Irenilza Alencar Nääs Luciana Foppa Rodrigo Garófallo Garcia Rusbel Raul Aspilcueta Borquis |
spellingShingle |
Rita de Kássia Silva dos Santos Fabiana Ribeiro Caldara Marta Moi Luan Sousa dos Santos Irenilza Alencar Nääs Luciana Foppa Rodrigo Garófallo Garcia Rusbel Raul Aspilcueta Borquis Behavior of immunocastrated pigs Revista Brasileira de Zootecnia immunocastration sexual activity sus scrofa swine production welfare |
author_facet |
Rita de Kássia Silva dos Santos Fabiana Ribeiro Caldara Marta Moi Luan Sousa dos Santos Irenilza Alencar Nääs Luciana Foppa Rodrigo Garófallo Garcia Rusbel Raul Aspilcueta Borquis |
author_sort |
Rita de Kássia Silva dos Santos |
title |
Behavior of immunocastrated pigs |
title_short |
Behavior of immunocastrated pigs |
title_full |
Behavior of immunocastrated pigs |
title_fullStr |
Behavior of immunocastrated pigs |
title_full_unstemmed |
Behavior of immunocastrated pigs |
title_sort |
behavior of immunocastrated pigs |
publisher |
Sociedade Brasileira de Zootecnia |
series |
Revista Brasileira de Zootecnia |
issn |
1806-9290 |
description |
ABSTRACT The objective of this study was to evaluate the behavior of immunocastrated male pigs compared with females and castrated males during the period before and after full immunization. A total of 30 animals were divided into three treatments, with ten animals in each (females, barrows, and immunocastrated males). The experiment was divided into three periods: 70 to 80 days of age (period 1), 81 to 110 days of age (period 2), and 111 to 140 days of age (period 3). The behavior of animals during these stages was evaluated. Immunocastrated males showed a higher rate of aggressive and sexual behavior during period 2, which decreased after the second vaccine dose. Both barrows and immunocastrated males presented high locomotion in period 1, reducing the frequency of this activity in period 3. All analyzed animals had a higher level of activities such as drinking, playing, and sexual behavior in period 1 than in the other periods, decreasing during the experiment. The remaining behavioral responses did not differ between the studied categories. Immunocastrated males had higher proportions of undesirable behaviors (aggressive and sexual) related to the surgically castrated males and females, and these were reduced after the second vaccine dose. Immunocastration is effective in the reduction of behaviors such as agonistic and sexual at the same levels observed in females and surgically castrated males. However, immunocastrated pigs are more subject to these undesirable behaviors before full immunization. |
topic |
immunocastration sexual activity sus scrofa swine production welfare |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000900540&lng=en&tlng=en |
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