Effects of dietary threonine:lysine ratios on growth performance, blood urea nitrogen, and nitrogen balance in weaned pigs

Zhang, Z.F.; Kim, I.H.

doi:10.1080/09712119.2013.875915

Cited by 7 publications

(4 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In Exp. 2, piglets raised under unclean sanitary conditions had reduced growth performance compared with the values reported by other studies (335 g, NRC, 2012 ; 500 g, Zhang and Kim, 2014 ). This suggests that the sanitation model of immune challenge was effective, which is consistent with the findings of others ( Lee et al., 2005 , Le Floc’h et al., 2006 , Kahindi et al., 2014a ) that showed decreased growth performance when piglets subjected to poor sanitary conditions.…”

Section: Discussionmentioning

confidence: 51%

Effects of dietary threonine:lysine ratioes and sanitary conditions on performance, plasma urea nitrogen, plasma-free threonine and lysine of weaned pigs

2015

View full text Add to dashboard Cite

Two 21 d-experiments were conducted to determine the optimum standardized ileal digestible (SID) threonine:lysine ratio (Thr:Lys) for weaned piglets reared under clean (Exp. 1) or unclean (Exp. 2) sanitary conditions and fed antibiotic-free diets. In each experiment, 90 mixed-sex pigs (Duroc × [Yorkshire × Landrace]; initial BW 7.2 ± 0.3 kg) were randomly assigned to 5 dietary treatments each with 6 replicates (3 pigs per pen). The dietary treatments were 5 graded levels of SID Thr:Lys (55, 59, 63, 67 and 71%). Diets were corn-wheat-soybean meal-based with a constant SID Lys of 1.18% that was set to be second limiting amino acid. In Exp. 1 and Exp. 2, plasma-free Thr increased (P = 0.05) with increasing dietary SID Thr:Lys. In Exp. 1, the SID Thr:Lys for gain-to-feed ratio (G:F) was optimized at 65%. In Exp. 2, the estimated optimal SID Thr:Lys for overall G:F was 66.5%. In conclusion, an average optimal SID Thr:Lys of 65 and 66.5% could be used to optimize feed efficiency for weaned pigs under clean and unclean sanitary conditions, respectively.

show abstract

Section: Discussionmentioning

confidence: 51%

Effects of dietary threonine:lysine ratioes and sanitary conditions on performance, plasma urea nitrogen, plasma-free threonine and lysine of weaned pigs

2015

View full text Add to dashboard Cite

show abstract

“…Com base nestes valores, pode-se inferir que as temperaturas médias de máxima e mínima ficaram acima da zona de conforto térmico, indicado por Campos et al (2009) Não foi observado efeito (P<0,05)) das relações treonina e lisina sobre o consumo de ração dos animais nos períodos I e II. Os achados no presente trabalho é semelhante aos resultados encontrados por Zhang et al (2014) ao avaliarem níveis crescentes de treonina para leitões em crescimento (6 a 32 kg), e também por Wang et al (2006Wang et al ( , 2007 que não constataram variação significativa no consumo médio de ração dos leitões, quando avaliaram níveis de treonina e lisina digestíveis da ração para suínos jovens. Tais trabalhos demonstram que os leitões são capazes de tolerar consideráveis excessos de aminoácidos sem que ocorra diferença significativa no consumo voluntário de ração por esses animais.…”

Section: Resultsunclassified

“…Em relação ao ganho de peso dos leitões não foi verificada diferença (P>0,05) entre os tratamentos em ambos os períodos. Zhang et al (2014), ao avaliarem níveis crescentes de treonina para leitões desmamados aos 21 dias, também não observaram influência dos níveis deste aminoácido sobre o ganho de peso, o que indica que a redução dos seus níveis foi tal que não comprometeu a deposição de proteína desses animais. Resultados similares também foram encontrados por Pozza et al 2000e Paiano et al (2009) que trabalharam com diferentes níveis de treonina para leitões em fase de crescimento.…”

Section: Resultsunclassified

Relações entre treonina e lisina digestível em dietas para leitões desmamados aos 28 dias de idade

Maurício

Souza

Ferreira

2014

Rev. bras. saúde prod. anim.

View full text Add to dashboard Cite

Este estudo foi realizado com o intuito de se determinar as melhores relações de treonina digestível com lisina digestível para leitões dos 28 aos 49 dias de idade. Para isso foram utilizados 120 leitões híbridos comerciais com alto potencial genético para deposição de carne magra na carcaça, desmamados aos 28 dias de idade com peso inicial médio de 7,45kg. Os animais foram distribuídos em delineamento em blocos ao acaso, compostos por cinco tratamentos (relações de treonina digestível e lisina digestível) e controlando o peso inicial, com oito repetições e três animais por unidade experimental. Os tratamentos corresponderam às seguintes relações treonina e lisina digestíveis: 0,50; 0,57; 0,64; 0,71; 0,78. Foram avaliados o desempenho dos leitões e os valores de haptoglobina e escore fecal por períodos: Período I - dos 28 aos 42 dias e Período II - dos 28 aos 49 dias. As relações de treonina e lisina digestíveis não influenciaram o consumo de ração médio diário e o ganho de peso médio diário dos animais. Houve efeito quadrático dos tratamentos em relação à conversão alimentar nos períodos I e II. Não houve efeito dos tratamentos sobre os teores haptoglobina e escore fecal no quinto e décimo dia do período experimental. As melhores relações treonina digestível com lisina digestível encontradas para conversão alimentar foram as de 0, 629 e 0, 648, respectivamente para os períodos I (28 aos 42 dias de idade) e II (28 aos 49 dias de idade).

show abstract

“…It was consistent with Figueroa et al (2012) who stated that supplementation with lysine increased growth performance and the lysine requirement might be higher than the level suggested by NRC (1998) for fattening pigs or for the pigs that had a greater potential for lean tissue deposition. However, Zhang and Kim (2014) reported that the dietary lysine concentration was sufficient for the growth of weaned pigs according to NRC (1998).…”

Section: Growth Performancesmentioning

confidence: 99%

Evaluation of optimal lysine level in Myanmar local breed and DYL crossed breed pig

Ngeun

2018

Int J Innov Educ Res

View full text Add to dashboard Cite

A Completely Randomized Design (CRD) was comprised 2x3 factorial arrangements of two breeds (DYL and local breed) and three different lysine levels. The 12 weeks old, nine castrated DYL and nine castrated local breed were randomly allocated in each individual pen to six treatment groups with three replicates into 18 pens. Two breeds of pigs (DYL and local breed) were exposed to the three different dietary treatments, L1-basal diet without lysine supplementation, L2-basal diet with 1.15% total lysine for grower and L3-basal diet with 1.65% total lysine for grower. The growth performance and feed intake were determined for growing pigs. In this study, no significant difference (p>0.05) was found in feed intake among the three different treatments. However, significantly better body weight, weight gain and feed conversion ratio (FCR) were observed in pigs fed L2 and L3 but were not significantly (p>0.05) differ from each other. Otherwise, diets without lysine supplementation (L1) showed no better effect on the growth performances of both DYL and local breeds. It could be noted that L2 was the best level to obtain optimal growth performances and farm efficiency. Between the two breeds, body weight of DYL was superior over that of local breed. The interactions were observed between lysine levels and different breeds regard for body weight and cumulative weight gain. To wrap up, it was noticeable that crystalline lysine supplementation helped to improve growth performance in both breeds.

show abstract

Effects of dietary threonine:lysine ratios on growth performance, blood urea nitrogen, and nitrogen balance in weaned pigs

Cited by 7 publications

References 22 publications

Effects of dietary threonine:lysine ratioes and sanitary conditions on performance, plasma urea nitrogen, plasma-free threonine and lysine of weaned pigs

Effects of dietary threonine:lysine ratioes and sanitary conditions on performance, plasma urea nitrogen, plasma-free threonine and lysine of weaned pigs

Relações entre treonina e lisina digestível em dietas para leitões desmamados aos 28 dias de idade

Evaluation of optimal lysine level in Myanmar local breed and DYL crossed breed pig

Contact Info

Product

Resources

About