Exigências de aminoácidos sulfurados digestíveis para suínos machos castrados, mantidos em ambiente de alta temperatura dos 15 aos 30 kg

Vaz, Roberta Gomes Marçal Vieira; Oliveira, Rita Flávia Miranda de; Donzele, Juarez Lopes; Ferreira, Aloízio Soares; Silva, Francisco Carlos de Oliveira; Kiefer, Charles; Siqueira, Jefferson Costa de; Rezende, Wilkson de Oliveira

doi:10.1590/s1516-35982005000500025

Cited by 11 publications

(6 citation statements)

References 8 publications

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“…The observed daily intake of SID Met + Cys (Table 2) may partially explains the lack of effects (P>0.05) for dietary SID Met + Cys, with or without dietary CMH supplementation, since methionine participates donating metil group to synthesize creatine (Brosnan et al, 2011). Additionally, the daily intake of SID Met + Cys above the requirements may have been used for other physiological functions rather than protein deposition (Vaz et al 2005). This effect may preserve the normal physiological role and delaying the onset of muscle exhaustion.…”

Section: Resultsmentioning

confidence: 99%

Creatine and Its Relationship With Methionine + Cysteine in Finishing Pig Diets

Pozza

Sitanaka

Gasparino

et al. 2023

Preprint

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This study aimed to evaluate the interaction between creatine monohydrate (CMH) and standardized ileal digestible (SID) methionine + cysteine (Met+Cys) in finishing pig diets on the performance, carcass traits, pork quality, blood biochemistry, gene expression of creatine transporter and muscle antioxidant action. Forty gilts, averaging 75.26±0.87 kg of initial weight, were distributed in a randomized blocks design, arranged in a 2 x 2 factorial scheme, consisting of two dietary CMH supplementation (0 and 0.10%) and two SID Met+Cys levels (0.40 and 0.44%), with 10 replicates and one animal per experimental unit. There was no interaction between CMH and SID Met+Cys on the performance and SLC6A8 gene expression (P>0.05). However, interactions were observed for the backfat thickness at P3 (P=0.004), drip water loss (DL) (P=0.018), thawing water loss (TL) (P=0.042) and plasma creatinine concentration (P=0.03). Supplementation with CMH provided low fat deposition at P3 point. Diets with the lowest SID Met+Cys level (0.40%) and containing CMH (0.10%) presented the highest water losses (DL and TL). Plasma creatinine concentration was lower in pigs receiving diets with 0.10% CMH than those not receiving, but only in diets containing 0.44% SID Met+Cys. In addition, 0.44% SID Met+Cys increased the percentage of inhibition of the DPPH radical (P=0.022). The effects of supplementing 0.10% CMH in finishing pig diets are evident on pork quality by using adequate levels of SID Met+Cys, which also assist in preventing the oxidative lipid damage in the Longissimus dorsi muscle.

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Section: Resultsmentioning

confidence: 99%

Creatine and Its Relationship With Methionine + Cysteine in Finishing Pig Diets

Pozza

Sitanaka

Gasparino

et al. 2023

Preprint

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“…Este resultado foi semelhante aos obtidos por Hahn & Baker (1995) e Loughmiller et al (1996b), em estudo com suínos em terminação, e por Vaz (2003) e Kiefer (2003, em experimento com suínos em crescimento em ambiente termoneutro, que também não observaram variação significativa no CDR com o aumento dos níveis de metionina + cistina digestíveis na dieta.…”

Section: Resultsunclassified

Exigência de metionina + cistina digestíveis em suínos machos castrados de alto potencial genético na fase dos 60 aos 95 kg

Santos¹,

Donzele²,

Oliveira³

et al. 2007

R. Bras. Zootec.

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RESUMO -O experimento foi conduzido para determinação da exigência de metionina + cistina digestíveis de suínos de alto potencial genético para deposição de carne magra na fase dos 60 aos 95 kg. Foram utilizados 70 suínos machos castrados, híbridos comerciais com mesmo padrão genético, com peso inicial de 60,00 ± 1,13 kg, distribuídos em delineamento experimental de blocos ao acaso, com cinco níveis de metionina + cistina digestíveis (0,440; 0,464; 0,488; 0,512 e 0,536%), correspondentes, respectivamente, às relações de 55,0; 58,0; 61,0; 64,0 e 67,0% de metionina + cistina digestíveis:lisina digestível na dieta, sete repetições e dois animais por unidade experimental. As rações experimentais e a água foram fornecidas à vontade até o final do período experimental, quando os animais atingiram 94,95 ± 0,50 kg. Os níveis de metionina + cistina digestíveis da ração influenciaram o ganho de peso, que aumentou de forma linear até o nível de 0,536%, e a conversão alimentar e a quantidade de carne magra, que melhoraram de forma quadrática até os níveis estimados de 0,506 e 0,507%, respectivamente.O consumo de metionina + cistina digestíveis aumentou de forma linear com o aumento dos níveis de metionina + cistina na dieta. Não houve efeito dos níveis de metionina + cistina sobre o consumo diário de ração, a espessura de toucinho, o rendimento de carcaça e a porcentagem de carne magra na carcaça. Suínos machos castrados de alto potencial genético para deposição de carne magra na carcaça exigem na fase dos 60 aos 95 kg 0,507% de metionina + cistina digestíveis, correspondentes à relação de metionina + cistina digestíveis:lisina digestível na ração de 63,0%, para melhor conversão alimentar e maior quantidade de carne magra na carcaça.Palavras-chave: aminoácidos sulfurados, carcaça, desempenho, nutrição, terminação Digestible methionine + cystine requeriment of high genetical potential barrows in the phase from 60 to 95 kg ABSTRACT -The experiment was conduced to determine the requirements of digestible methionine + cystine of barrows with high potential genetic for lean meat deposition from 60 to 95 kg. Seventy hybrid commercial barrows with the same genetic pattern, with initial average weight of 60.00 ± 1.13 kg, were allotted to a randomized experimental blocks design with five digestible methionine and cystine levels (0.440; 0.464; 0.488; 0.512 and 0.536%), corresponding, respectively, to 55.0; 58.0; 61.0, 64.0 and 67.0% of methionine and cystine: digestible lysine in the diet, seven replicates and two animals by experimental unity. The experimental diets and the water were ad libitum supplied until the end of experimental period when the animals reached an average weight of 94.95 ± 0.50 kg. The digestible methionine and cystine levels of ration influenced the daily weight gain that linearly increased up to the level of 0.536 %, and feed:gain and lean meat amount, which improved by a quadratic way up to the levels of 0.506 and 0.507%, respectively. The digestible methionine and cystine intake linearly increased with the i...

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“…Since the increased intake of SID Met+Cys did not adversely influence the performance of pigs, it can be assumed that methionine intake above the level of 0.370% may have been used for other physiological functions, rather than protein deposition, as suggested by Chung and Baker (1992) and Vaz et al (2005). One of the possible metabolic fates of methionine could be related to methyl group donation for the synthesis of biomolecules such as carnitine, which is essential for lipid metabolism as it is involved in the transportation of long-chain fatty acids in mitochondrial membrane.…”

Section: Discussionmentioning

confidence: 99%

Methionine + cystine levels and vitamin B6 supplementation on performance and enzyme expression of methionine metabolism of gilts from 75 to 100 kg

et al. 2017

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-This study was carried out to evaluate the effect of different levels of standardized ileal digestible (SID) methionine + cystine (Met+Cys) and vitamin B 6 supplementation on the performance, blood variables, and gene expression of enzymes involved in methionine metabolism in female pigs between 75 and 100 kg. Fifty six female pigs were used (Talent × Topigs 20), averaging 75.06±1.68 kg in initial weight, allotted in a completely randomized block design arranged in a 2 × 4 factorial scheme, composed of two vitamin B 6 supplementation levels (1.58 and 3.58 mg/kg) and four levels of SID Met+Cys (0.370, 0.470, 0.570, and 0.670%), with seven replicates and one animal per experimental unit. No interactions between vitamin B6 supplementation and SID Met+Cys levels were observed. The levels of SID Met+Cys and vitamin B 6 supplementation did not affect animal performance. Triacylglycerols showed a quadratic response to the SID Met+Cys levels, in which the lowest plasma concentration was estimated as 0.575%. Treatments did not affect the expression of the methionine synthase and cystathionine-γ-lyase enzymes or serum homocysteine levels. The SID Met+Cys requirement for female pigs from 75 to 100 kg is equal to or lower than 10.60 g/day, which corresponds to the level of 0.370% Met+Cys in the diet and a relationship 0.48% with the SID lysine.

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Exigências de aminoácidos sulfurados digestíveis para suínos machos castrados, mantidos em ambiente de alta temperatura dos 15 aos 30 kg

Cited by 11 publications

References 8 publications

Creatine and Its Relationship With Methionine + Cysteine in Finishing Pig Diets

Creatine and Its Relationship With Methionine + Cysteine in Finishing Pig Diets

Exigência de metionina + cistina digestíveis em suínos machos castrados de alto potencial genético na fase dos 60 aos 95 kg

Methionine + cystine levels and vitamin B6 supplementation on performance and enzyme expression of methionine metabolism of gilts from 75 to 100 kg

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