Effect of vaccination against gonadotropin-releasing hormone (GnRH) in heavy male pigs for Italian typical dry-cured ham production

Pinna, Andrea; Schivazappa, C.; Virgili, R.; Parolari, G.

doi:10.1016/j.meatsci.2015.07.002

Cited by 23 publications

(29 citation statements)

References 36 publications

(57 reference statements)

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“…The recommended time between the second vaccination and slaughter is about 4 to 5 weeks to allow the release of already accumulated androstenone and skatole from adipose tissue. Even if long-term studies revealed a resumption of testicular function after 10 to 24 weeks [43,44], a third vaccination is only suggested if animals are slaughtered at a higher age [45].…”

Section: On-farm Application Of Immunocastrationmentioning

confidence: 99%

“…Nonetheless, the methodology can be used for alternative production systems. In the production of traditional high quality pork products such as dry-cured hams and shoulders, animals are slaughtered at higher live weights [10,45]. In Iberian high quality production systems, boars and gilts are castrated surgically either to prevent boar taint or undesirable performance losses in female animals during estrus [76], or in extensive free-ranging housing systems in order to prevent unwanted pregnancies during fattening [77,78].…”

Section: Suitability Of Immunocastration For Alternative and High Quamentioning

confidence: 99%

“…However, castration of females jeopardizes animal welfare and increases production costs and infection risks [76,79]. For traditional products, immunocastration is a good alternative to surgical castration or fattening of entire boars or gilts, as neither performance nor product quality are negatively influenced [45,77,[80][81][82]. In a study by Pinna and co-authors [45] with heavy pigs (165 kg live weight) produced for Parma ham, three vaccinations were recommended to prevent boar taint reliably.…”

Section: Suitability Of Immunocastration For Alternative and High Quamentioning

confidence: 99%

See 2 more Smart Citations

Sustainability of Pork Production with Immunocastration in Europe

et al. 2019

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Immunocastration, a technique to replace surgical castration of piglets, consists of two consecutive vaccinations to induce antibodies which transiently suppress testicular functions and avoid boar taint. It is a method to ensure both a high product quality and a high level of animal welfare. The impact of immunocastration on the three pillars of sustainability has been studied extensively. While all aspects of sustainability have been studied separately, however, a contemporary global overview of different aspects is missing. In immunocastrates, performance results are better than in barrows, but worse than in boars. The environmental impact of pork production with immunocastrates is lower than with barrows, but higher than with boars. The level of aggression is considerably lower in immunocastrates compared to boars. Societal concerns are mainly related to food safety, and are not supported by scientific evidence. After second vaccination, immunocastrates switch from a boar- to a barrow-like status. Therefore, the timing of second vaccination is a fine-tuning tool to balance advantages of boars with environmental and economic benefits against increased risk of welfare problems and boar taint. Nevertheless, both synergic and conflicting relationships between the pillars of sustainability must be communicated along the value chain to produce tailored pork products.

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Section: On-farm Application Of Immunocastrationmentioning

confidence: 99%

Section: Suitability Of Immunocastration For Alternative and High Quamentioning

confidence: 99%

Section: Suitability Of Immunocastration For Alternative and High Quamentioning

confidence: 99%

See 1 more Smart Citation

Sustainability of Pork Production with Immunocastration in Europe

et al. 2019

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“…The longer is the time elapsed from the second vaccination to slaughter, the higher is the difference between immunocastrates and entire males and/ or the similarity to surgical castrates [33,34]. In the case of older animals, a three-dose vaccination regimen might be required [35,36] to ensure inactivation of endogenous GnRH and elimination of boar taint. Also, if nonrespondent pigs are detected (shown as larger testicle size or prolonged sexual behaviour), an additional dose might be applied [37].…”

Section: Vaccination Schemementioning

confidence: 99%

Immunocastration as Alternative to Surgical Castration in Pigs

Čandek-Potokar¹,

Škrlep²,

Zamaratskaia³

2017

Theriogenology

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Surgical castration of piglets is a routine practice in pig production used to prevent the incidence of boar taint of pig meat, which may develop in entire male pigs as they reach puberty. This practice is being presently questioned in the European Union, and there is a strong initiative to end it. The initiative is presently voluntary; however, key stakeholders of European pig production sector have signed a declaration, and the actions undertaken by them already affect the business. Before such new concepts in pig production can be implemented, alternative solutions are needed, one of them being immunocastration. The present chapter will thus focus on the presentation of immunocastration as one of the promising alternatives to surgical castration. Theoretical and practical aspects of immunocastration in pig production will be described, and the advantages and disadvantages of this alternative will be summarised. Physiological principles of immunocastration and impacts on metabolism, growth performance, body composition and meat quality will be described and aspects of public acceptability reviewed.

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“…A imunocastração consiste em duas doses de uma vacina, sem atividade hormonal ou farmacológica, que estimula o sistema imune do suíno a produzir anticorpos contra seu GnRF natural (Pinna et al, 2015). O GnRF é o hormônio que sinaliza a hipófise para sintetizar o hormônio luteinizante (LH) e o hormônio folículo estimulante (FSH), os quais controlam a função testicular.…”

Section: Alternativas Para Explorar a Síntese Proteica Em Suínos Machosunclassified

Síntese proteica em suínos: como fêmeas, machos não castrados e castrados respondem a este processo?

Monteiro

Huepa

Castilha

et al. 2017

Pubvet

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RESUMO.A síntese proteica muscular em suínos é essencial para promover o ganho de carne marga. Entretanto, é um processo complexo que envolve inúmeras enzimas, proteínas ribossomais e pode ser influenciado por diversos fatores, de ordem ambiental, nutricional e hormonal. Neste sentido, os hormônios sexuais podem exercer ação anabólica na síntese proteica, levando a diferentes taxas de deposição muscular em machos castrados, machos não castrados e fêmeas. Com o intuito de aproveitar o efeito anabólico da testosterona, a imunocastração vem sendo cada vez mais difundida na suinocultura, levando machos imunocastrados a apresentarem desempenho e características de carcaça semelhantes a machos inteiros. De forma geral, o sexo parece desempenhar um importante papel na síntese proteica. Isso confere diferentes exigências de aminoácidos, em machos inteiros, fêmeas e machos castrados, devido às diferenças na deposição de proteína na carcaça.Palavras chave: fêmeas, imunocastração, machos, síntese muscular Protein synthesis in pigs: how gilts, barrows and intact male respond to this process?ABSTRACT. Muscle protein synthesis in pigs can be considered a key factor in promoting lean gain. However, this is a complex process depending on several enzymes, ribosomal proteins and may be affected by environmental factors, besides nutritional and hormonal. In this sense, sexual hormones may have anabolic action in protein synthesis, leading different rates of muscle deposition in barrows, intact males and gilts. Aiming to use the anabolic effect of testosterone, the immunocastration practice is being applied to pig production in many countries, allowing males to show the same growth performance and carcass traits as intact males. In this sense, sex plays an important role on protein synthesis, providing differences in the amino acids requirements, according to its condition (intact males, gilts and barrows) due to differences in carcass protein deposition.Keywords: Gilts, immunocastration, barrows, muscle synthesis Síntesis proteica en porcinos: como las hembras, los machos castrados y los machos enteros responden a este proceso?RESUMEN. La síntesis de proteína muscular en porcinos es esencial para estimular la ganancia de carne magra. Sin embargo es un proceso complejo que involucra una cantidad innumerable de enzimas, proteínas ribosomales y puede ser influenciada por diferentes factores de orden ambiental, nutricional y hormonal. En este sentido, las hormonas sexuales pueden ejercer una acción anabólica en la síntesis de proteínas, conllevando a diferentes

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Effect of vaccination against gonadotropin-releasing hormone (GnRH) in heavy male pigs for Italian typical dry-cured ham production

Cited by 23 publications

References 36 publications

Sustainability of Pork Production with Immunocastration in Europe

Sustainability of Pork Production with Immunocastration in Europe

Immunocastration as Alternative to Surgical Castration in Pigs

Síntese proteica em suínos: como fêmeas, machos não castrados e castrados respondem a este processo?

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