Immunocastration in Fattening Pigs and its Effects on Productive Performance

Ioana Andronie

Abstract


According to the European and national legislation which set the minimum standards for pig protection, the castration of piglets after the age of seven days must be performed only under prolonged anesthesia and analgesia. As far as welfare is concerned, pig castration in these conditions is mandatory in order to reduce to the minimum the pain generated by the surgical method itself. Immunocastration is an alternative methods to surgical castration based on the use of antibodies against the gonadotropin releasing hormone (Gn-RH), which once neutralized suppresses testicles development and function and inhibits the smell of boar.

The aims of this study were to see the immunocastration effects on productive performance in pigs PIC hybrids.

Animals included in the study were PIC fattening pigs, grouped in two groups: A lot (n: 485) - surgically castrated pigs, and B lot (n: 604) - immunocastrated pigs. The fattening technology was identical for all pigs included in this study. Pigs’ immunization was performed using Improvac®.

The results obtained showed that A lot recorded a daily average weight gain of 785 g, while loss due to mortality was 2.82 %. In the case of lot B, the recorded daily average weight gain was 834 g (49g higher than the one in lot A), while loss due to mortality were 2.59 % (0.23 % lower than in lot A).

Pig immunocastration is an acceptable method as far as welfare standards are concerned, reducing the stress generated by surgical castration. Productive performance in immunocastrated pigs are improved compared to the one of surgically castrated pigs.


Keywords


immunocastration, pig, productive performance

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Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
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