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Behavior of immunocastrated pigs

Rita de Kássia Silva dos Santos et al · Sociedade Brasileira de Zootecnia

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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.

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APA 7

al, R. D. K. S. D. S. E. (s. f.). Behavior of immunocastrated pigs. https://doi.org/10.1590/s1806-92902016000900006

MLA

al, Rita de Kássia Silva dos Santos et. "Behavior of immunocastrated pigs.". https://doi.org/10.1590/s1806-92902016000900006.

Chicago

al, Rita de Kássia Silva dos Santos et. s. f. "Behavior of immunocastrated pigs.". https://doi.org/10.1590/s1806-92902016000900006.

Harvard

al, R. D. K. S. D. S. E. s. f, Behavior of immunocastrated pigs, Sociedade Brasileira de Zootecnia, available at: https://doi.org/10.1590/s1806-92902016000900006 [Accessed 28 Jun. 2026].

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Título
Behavior of immunocastrated pigs
Autor / colaboradores
Rita de Kássia Silva dos Santos et al
Editorial
Sociedade Brasileira de Zootecnia
ISSN
1806-9290
ISSN
1806-9290
Idioma
eng

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