Evaluation of production performance and carcass quality characteristics of boars immunised against gonadotropinreleasing hormone (GnRH) compared with physically castrated male, entire male and female pigs
The objectives of this study were to assess the performance and carcass quality characteristics of boars immunised against gonadotropin-releasing hormone GnRH (IM) compared with physically castrated males (PM), entire males (EM) and entire female pigs (EF). For the study 288 crossbred (Large White ×...
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| Veröffentlicht in: | Spanish journal of agricultural research : SJAR 2010 (3), p.599-606 |
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| creator | Hortos, M Piñeiro Noguera, Carlos Morales, J Pérez, J Suárez, P Gispert Martinell, Marina |
| description | The objectives of this study were to assess the performance and carcass quality characteristics of boars immunised
against gonadotropin-releasing hormone GnRH (IM) compared with physically castrated males (PM), entire males
(EM) and entire female pigs (EF). For the study 288 crossbred (Large White × Landrace) pigs were used comprising
four equal groups of 72 IM, 72 PM, 72 EM and 72 EF. The study period was from 74 days of age (31.2 ± 5.57 kg body
weight; mean ± std. dev.) to slaughter at 172 days of age (107.7 ± 14.82 kg body weight). PM were physically castrated
at 5 days of age and IM pigs were vaccinated with the GnRH vaccine Improvac® (Pfizer Animal Health) at 74 and 145
days of age (89.1 ± 15.93 kg body weight). Across the duration of the study period, growth rate was numerically highest
in IM group and significantly higher than EF (P < 0.01). This was also reflected in respective slaughter weights. EM
had the lowest feed:gain ratio (P < 0.001) followed by IM which had a lower ratio than both PM and EF. At slaughter,
testes weights were reduced in IM by approximately 55% (P < 0.001) compared with EM. Fat content (backfat thickness
and intramuscular fat) was higher and lean percentage of carcass lower in PM compared to all other groups (P < 0.05),
with no differences between EF, EM and IM. Boar taint compounds, skatole and androstenone, were lower in IM pigs
compared with EM (P < 0.05), and not differing from the concentrations measured in PM and EF. Immunisation of
entire male pigs against GnRH allows improved feed efficiency compared with physical castrates with no detriment
to carcass or meat quality. Los objetivos del presente estudio fueron evaluar la productividad y características de la calidad de la canal de cerdos
inmunizados frente a GnRH (IM) en comparación con machos castrados físicamente (PM), machos enteros (EM)
y hembras (EF). Se utilizaron un total de 288 híbridos comerciales (Large White × Landrace). Los PM fueron castrados
a los 5 días de vida, mientras que los cerdos IM se vacunaron con GnRH Improvac® (Pfizer Animal Health) a los
74 (31,2 ± 5,57 kg peso vivo; media ± desv. est.) y 145 días de edad (89,1 ± 15,93 kg peso vivo). La ganancia de peso
diaria fue numéricamente mayor en el grupo IM, y de forma significativa frente a las EF (P < 0,01). Este efecto también
se reflejó en los pesos de sacrificio. EM mostraron el menor valor de índice de conversión (P < 0,001) seguidos
por IM, que mostraron un menor índice que PM y EF. En el sacr |
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against gonadotropin-releasing hormone GnRH (IM) compared with physically castrated males (PM), entire males
(EM) and entire female pigs (EF). For the study 288 crossbred (Large White × Landrace) pigs were used comprising
four equal groups of 72 IM, 72 PM, 72 EM and 72 EF. The study period was from 74 days of age (31.2 ± 5.57 kg body
weight; mean ± std. dev.) to slaughter at 172 days of age (107.7 ± 14.82 kg body weight). PM were physically castrated
at 5 days of age and IM pigs were vaccinated with the GnRH vaccine Improvac® (Pfizer Animal Health) at 74 and 145
days of age (89.1 ± 15.93 kg body weight). Across the duration of the study period, growth rate was numerically highest
in IM group and significantly higher than EF (P < 0.01). This was also reflected in respective slaughter weights. EM
had the lowest feed:gain ratio (P < 0.001) followed by IM which had a lower ratio than both PM and EF. At slaughter,
testes weights were reduced in IM by approximately 55% (P < 0.001) compared with EM. Fat content (backfat thickness
and intramuscular fat) was higher and lean percentage of carcass lower in PM compared to all other groups (P < 0.05),
with no differences between EF, EM and IM. Boar taint compounds, skatole and androstenone, were lower in IM pigs
compared with EM (P < 0.05), and not differing from the concentrations measured in PM and EF. Immunisation of
entire male pigs against GnRH allows improved feed efficiency compared with physical castrates with no detriment
to carcass or meat quality. Los objetivos del presente estudio fueron evaluar la productividad y características de la calidad de la canal de cerdos
inmunizados frente a GnRH (IM) en comparación con machos castrados físicamente (PM), machos enteros (EM)
y hembras (EF). Se utilizaron un total de 288 híbridos comerciales (Large White × Landrace). Los PM fueron castrados
a los 5 días de vida, mientras que los cerdos IM se vacunaron con GnRH Improvac® (Pfizer Animal Health) a los
74 (31,2 ± 5,57 kg peso vivo; media ± desv. est.) y 145 días de edad (89,1 ± 15,93 kg peso vivo). La ganancia de peso
diaria fue numéricamente mayor en el grupo IM, y de forma significativa frente a las EF (P < 0,01). Este efecto también
se reflejó en los pesos de sacrificio. EM mostraron el menor valor de índice de conversión (P < 0,001) seguidos
por IM, que mostraron un menor índice que PM y EF. En el sacrificio, el peso testicular se redujo en IM un 55%
(P < 0,001) en comparación con EM. El contenido de grasa (espesor de grasa dorsal y grasa intramuscular) fue mayor
y el porcentaje magro de la canal menor en PM en comparación al resto de grupos (P < 0,05), sin diferencias entre EF,
EM e IM. La concentración de los componentes del olor sexual, escatol y androsterona, fue menor en cerdos IM que en EM (P < 0,05), sin ser diferente de las concentraciones medidas en PM y EF. La inmunización de EM frente a GnRH
permite mejorar el índice de conversión en comparación con la castración física en cerdos, sin perjudicar la calidad
de la canal o de la carne.]]></description><identifier>ISSN: 1695-971X</identifier><identifier>ISSN: 2171-9292</identifier><identifier>EISSN: 2171-9292</identifier><language>eng</language><publisher>Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)</publisher><ispartof>Spanish journal of agricultural research : SJAR, 2010 (3), p.599-606</ispartof><rights>free</rights><rights>LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: https://dialnet.unirioja.es/info/derechosOAI</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,874,885,886,4014</link.rule.ids></links><search><creatorcontrib>Hortos, M</creatorcontrib><creatorcontrib>Piñeiro Noguera, Carlos</creatorcontrib><creatorcontrib>Morales, J</creatorcontrib><creatorcontrib>Pérez, J</creatorcontrib><creatorcontrib>Suárez, P</creatorcontrib><creatorcontrib>Gispert Martinell, Marina</creatorcontrib><title>Evaluation of production performance and carcass quality characteristics of boars immunised against gonadotropinreleasing hormone (GnRH) compared with physically castrated male, entire male and female pigs</title><title>Spanish journal of agricultural research : SJAR</title><description><![CDATA[The objectives of this study were to assess the performance and carcass quality characteristics of boars immunised
against gonadotropin-releasing hormone GnRH (IM) compared with physically castrated males (PM), entire males
(EM) and entire female pigs (EF). For the study 288 crossbred (Large White × Landrace) pigs were used comprising
four equal groups of 72 IM, 72 PM, 72 EM and 72 EF. The study period was from 74 days of age (31.2 ± 5.57 kg body
weight; mean ± std. dev.) to slaughter at 172 days of age (107.7 ± 14.82 kg body weight). PM were physically castrated
at 5 days of age and IM pigs were vaccinated with the GnRH vaccine Improvac® (Pfizer Animal Health) at 74 and 145
days of age (89.1 ± 15.93 kg body weight). Across the duration of the study period, growth rate was numerically highest
in IM group and significantly higher than EF (P < 0.01). This was also reflected in respective slaughter weights. EM
had the lowest feed:gain ratio (P < 0.001) followed by IM which had a lower ratio than both PM and EF. At slaughter,
testes weights were reduced in IM by approximately 55% (P < 0.001) compared with EM. Fat content (backfat thickness
and intramuscular fat) was higher and lean percentage of carcass lower in PM compared to all other groups (P < 0.05),
with no differences between EF, EM and IM. Boar taint compounds, skatole and androstenone, were lower in IM pigs
compared with EM (P < 0.05), and not differing from the concentrations measured in PM and EF. Immunisation of
entire male pigs against GnRH allows improved feed efficiency compared with physical castrates with no detriment
to carcass or meat quality. Los objetivos del presente estudio fueron evaluar la productividad y características de la calidad de la canal de cerdos
inmunizados frente a GnRH (IM) en comparación con machos castrados físicamente (PM), machos enteros (EM)
y hembras (EF). Se utilizaron un total de 288 híbridos comerciales (Large White × Landrace). Los PM fueron castrados
a los 5 días de vida, mientras que los cerdos IM se vacunaron con GnRH Improvac® (Pfizer Animal Health) a los
74 (31,2 ± 5,57 kg peso vivo; media ± desv. est.) y 145 días de edad (89,1 ± 15,93 kg peso vivo). La ganancia de peso
diaria fue numéricamente mayor en el grupo IM, y de forma significativa frente a las EF (P < 0,01). Este efecto también
se reflejó en los pesos de sacrificio. EM mostraron el menor valor de índice de conversión (P < 0,001) seguidos
por IM, que mostraron un menor índice que PM y EF. En el sacrificio, el peso testicular se redujo en IM un 55%
(P < 0,001) en comparación con EM. El contenido de grasa (espesor de grasa dorsal y grasa intramuscular) fue mayor
y el porcentaje magro de la canal menor en PM en comparación al resto de grupos (P < 0,05), sin diferencias entre EF,
EM e IM. La concentración de los componentes del olor sexual, escatol y androsterona, fue menor en cerdos IM que en EM (P < 0,05), sin ser diferente de las concentraciones medidas en PM y EF. La inmunización de EM frente a GnRH
permite mejorar el índice de conversión en comparación con la castración física en cerdos, sin perjudicar la calidad
de la canal o de la carne.]]></description><issn>1695-971X</issn><issn>2171-9292</issn><issn>2171-9292</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>FKZ</sourceid><recordid>eNpVUMGO1DAMrRBIDAv_kCMIKrVp2jQSl9Vq2UVaCWk1B26Vx3FnvEqTkmSA-Uj-iTC7HNYX-9l-z9Z7UW1kq9vaSCNfVpt2MH1tdPv9dfUmpYemUb1uzab6c_0T3BEyBy_CLNYY7BHPaKU4h7iARxLgrUCICCmJH0dwnE8CDxABM0VOmTH9Y-8CxCR4WY6eE1kBe2CfstgHDzbkGFb2kRxBYr8Xh6IePIn3N_7-9oPAsKwQC-sX54NYD6fECM6VQ5ByhFwmCzj6JMhnjnQG58dmOpcr79Pb6tUMLtG7p3xRbb9cb69u67tvN1-vLu9qOxpd46h600ildo2ypCU1OPatVoNUZkRt2hHnblBDWZhHILTSmp3ROJKRhI3uLqrPj7KWwXnK0xp5gXiaAvD0v1c8iBweYKI0Xd5vmxLd0CsjC_3jI90V3z17S7-fKUTCEO3UjXoYdPcXHdGU1w</recordid><startdate>2010</startdate><enddate>2010</enddate><creator>Hortos, M</creator><creator>Piñeiro Noguera, Carlos</creator><creator>Morales, J</creator><creator>Pérez, J</creator><creator>Suárez, P</creator><creator>Gispert Martinell, Marina</creator><general>Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)</general><scope>77F</scope><scope>AGMXS</scope><scope>FKZ</scope></search><sort><creationdate>2010</creationdate><title>Evaluation of production performance and carcass quality characteristics of boars immunised against gonadotropinreleasing hormone (GnRH) compared with physically castrated male, entire male and female pigs</title><author>Hortos, M ; Piñeiro Noguera, Carlos ; Morales, J ; Pérez, J ; Suárez, P ; Gispert Martinell, Marina</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-d897-c84590244b04de72e0c8517462498c7918cf364644bf8aecd2d9b97c8e92ec073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hortos, M</creatorcontrib><creatorcontrib>Piñeiro Noguera, Carlos</creatorcontrib><creatorcontrib>Morales, J</creatorcontrib><creatorcontrib>Pérez, J</creatorcontrib><creatorcontrib>Suárez, P</creatorcontrib><creatorcontrib>Gispert Martinell, Marina</creatorcontrib><collection>Latindex</collection><collection>Dialnet (Open Access Full Text)</collection><collection>Dialnet</collection><jtitle>Spanish journal of agricultural research : SJAR</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hortos, M</au><au>Piñeiro Noguera, Carlos</au><au>Morales, J</au><au>Pérez, J</au><au>Suárez, P</au><au>Gispert Martinell, Marina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of production performance and carcass quality characteristics of boars immunised against gonadotropinreleasing hormone (GnRH) compared with physically castrated male, entire male and female pigs</atitle><jtitle>Spanish journal of agricultural research : SJAR</jtitle><date>2010</date><risdate>2010</risdate><issue>3</issue><spage>599</spage><epage>606</epage><pages>599-606</pages><issn>1695-971X</issn><issn>2171-9292</issn><eissn>2171-9292</eissn><abstract><![CDATA[The objectives of this study were to assess the performance and carcass quality characteristics of boars immunised
against gonadotropin-releasing hormone GnRH (IM) compared with physically castrated males (PM), entire males
(EM) and entire female pigs (EF). For the study 288 crossbred (Large White × Landrace) pigs were used comprising
four equal groups of 72 IM, 72 PM, 72 EM and 72 EF. The study period was from 74 days of age (31.2 ± 5.57 kg body
weight; mean ± std. dev.) to slaughter at 172 days of age (107.7 ± 14.82 kg body weight). PM were physically castrated
at 5 days of age and IM pigs were vaccinated with the GnRH vaccine Improvac® (Pfizer Animal Health) at 74 and 145
days of age (89.1 ± 15.93 kg body weight). Across the duration of the study period, growth rate was numerically highest
in IM group and significantly higher than EF (P < 0.01). This was also reflected in respective slaughter weights. EM
had the lowest feed:gain ratio (P < 0.001) followed by IM which had a lower ratio than both PM and EF. At slaughter,
testes weights were reduced in IM by approximately 55% (P < 0.001) compared with EM. Fat content (backfat thickness
and intramuscular fat) was higher and lean percentage of carcass lower in PM compared to all other groups (P < 0.05),
with no differences between EF, EM and IM. Boar taint compounds, skatole and androstenone, were lower in IM pigs
compared with EM (P < 0.05), and not differing from the concentrations measured in PM and EF. Immunisation of
entire male pigs against GnRH allows improved feed efficiency compared with physical castrates with no detriment
to carcass or meat quality. Los objetivos del presente estudio fueron evaluar la productividad y características de la calidad de la canal de cerdos
inmunizados frente a GnRH (IM) en comparación con machos castrados físicamente (PM), machos enteros (EM)
y hembras (EF). Se utilizaron un total de 288 híbridos comerciales (Large White × Landrace). Los PM fueron castrados
a los 5 días de vida, mientras que los cerdos IM se vacunaron con GnRH Improvac® (Pfizer Animal Health) a los
74 (31,2 ± 5,57 kg peso vivo; media ± desv. est.) y 145 días de edad (89,1 ± 15,93 kg peso vivo). La ganancia de peso
diaria fue numéricamente mayor en el grupo IM, y de forma significativa frente a las EF (P < 0,01). Este efecto también
se reflejó en los pesos de sacrificio. EM mostraron el menor valor de índice de conversión (P < 0,001) seguidos
por IM, que mostraron un menor índice que PM y EF. En el sacrificio, el peso testicular se redujo en IM un 55%
(P < 0,001) en comparación con EM. El contenido de grasa (espesor de grasa dorsal y grasa intramuscular) fue mayor
y el porcentaje magro de la canal menor en PM en comparación al resto de grupos (P < 0,05), sin diferencias entre EF,
EM e IM. La concentración de los componentes del olor sexual, escatol y androsterona, fue menor en cerdos IM que en EM (P < 0,05), sin ser diferente de las concentraciones medidas en PM y EF. La inmunización de EM frente a GnRH
permite mejorar el índice de conversión en comparación con la castración física en cerdos, sin perjudicar la calidad
de la canal o de la carne.]]></abstract><pub>Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)</pub><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| title | Evaluation of production performance and carcass quality characteristics of boars immunised against gonadotropinreleasing hormone (GnRH) compared with physically castrated male, entire male and female pigs |
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