206 Impact of ractopamine hydrochloride (Paylean®) on performance of heavy finishing pigs using a 3-cut marketing strategy

Rickard, Justin W.; Allee, G.L.; Rincker, P. J.; Gooding, J. P.; Acheson, R. J.; McKenna, D.R.; Carr, S. N.

doi:10.2527/asasmw.2017.12.206

Cited by 2 publications

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“…The increases in hot and cold carcass weight corroborated the results found by Silva et al (2013), and the increase in the hot carcass yield in this study agrees with those observed by Rickard et al (2017) in pigs fed diets containing ractopamine. Ractopamine can increase the proportion of nutrients deposited in the carcass relative to that deposited in organs or non-carcass components (Mills, 2002), as no significant differences were observed in else carcass characteristics (loin eye area, backfat, thickness, loin depth, and fat area).…”

Section: Discussionsupporting

confidence: 93%

“…This makes the meat production more competitive as consumers demand high-quality, and healthy food. Individual usage of crude glycerin (Egea et al, 2016), or ractopamine (Rickard et al, 2017) in the pig diet at the finishing period leads to improvements in carcass and meat quality. However, it is necessary to assess the effects of combined usage in pig diets at the finishing period.…”

Section: Introductionmentioning

confidence: 99%

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Carcass characteristics and pork quality of pigs fed diets containing crude glycerin and ractopamine

et al. 2022

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An experiment was conducted to evaluate the effects of increasing concentrations of crude glycerin, with or without ractopamine, in the diet of finishing barrows on carcass characteristics and pork quality. The experimental design was a randomized complete block, in a 4 x 2 factorial scheme, with four concentrations of crude glycerin (0, 100, 150, or 200 g/kg) and two concentrations of ractopamine (0 or 10 mg/kg). There was no interaction between the crude glycerin concentrations and the ractopamine use as well as there was no isolated effect of the dietary crude glycerin concentration for all the evaluated traits. However, the dietary ractopamine increased the hot (p = 0.021) and cold (p=0.020) carcass weight, the hot carcass yield (p = 0.038), the shear force (p = < 0.0001), lightness (L* index) (p = 0.043), hue angle (h*) (p = 0.026), and C16:1 (p = 0.023) concentration in the loin. Moreover, the dietary ractopamine decreased the red content (a* value) (p = 0.043), the activity of C16-C18 elongase (p = 0.037) and the C18:0 (p = 0.021) concentration in the loin. The inclusion of up to 200 g/kg crude glycerin in the diet of finishing pigs may be used as a partial substitute for dietary corn, combined or not with 10 mg/kg ractopamine, without impair the evaluated carcass characteristics and the quality of the loin.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Carcass characteristics and pork quality of pigs fed diets containing crude glycerin and ractopamine

et al. 2022

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“…Por essa razão, esta característica, juntamente com a deposição de carne magra, vem sendo cada vez mais abordadas em pesquisas nas áreas de genética (Schiavon et al, 2015), nutrição (Rickard et al, 2017) e ambiência (Berton et al, 2015), com o intuito de melhorar ainda mais estes parâmetros. Paralelamente, tem-se avaliado o sexo como fator que pode afetar as características de carcaça de suínos (Braña et al, 2013).…”

Section: Introductionunclassified

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

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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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206 Impact of ractopamine hydrochloride (Paylean®) on performance of heavy finishing pigs using a 3-cut marketing strategy

Cited by 2 publications

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Carcass characteristics and pork quality of pigs fed diets containing crude glycerin and ractopamine

Carcass characteristics and pork quality of pigs fed diets containing crude glycerin and ractopamine

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

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