Effects of lysine and sodium on the growth performance, bone parameter, serum composition and lysine-arginine antagonism in Broiler Chicks

Yun, Cho-Rong; Han, I. K.; Choi, Y. J.; Park, B. C.; Lee, H. S.

doi:10.5713/ajas.1991.353

Cited by 2 publications

(1 citation statement)

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“…Lysine is the first limiting AA in typical grain-based swine diets (Liao et al 2015 ). It has been reported that a deficiency of dietary lysine can reduce the expression of AA transporters in the small intestine (He et al 2013 ) and alter the plasma concentrations of AAs (Morrison et al 1961 ; Yun et al 1991 ; Zeng et al 2013 ), leading to a series of interconnected consequences for swine health and productivity. Thus, there is a pressing need to further study the effect of dietary lysine on plasma AA profile in order to explore the metabolic interactions between lysine and other AAs and to identify an optimal plasma AA profile to maximize pig growth performance via the best combination and supply of dietary AAs.…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary lysine levels on plasma free amino acid profile in late-stage finishing pigs

Regmi¹,

Wang²,

Crenshaw³

et al. 2016

SpringerPlus

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Muscle growth requires a constant supply of amino acids (AAs) from the blood. Therefore, plasma AA profile is a critical factor for maximizing the growth performance of animals, including pigs. This research was conducted to study how dietary lysine intake affects plasma AA profile in pigs at the late production stage. Eighteen crossbred (Large White × Landrace) finishing pigs (nine barrows and nine gilts; initial BW 92.3 ± 6.9 kg) were individually penned in an environment controlled barn. Pigs were assigned randomly to one of the three dietary treatments according to a randomized complete block design with sex as block and pig as experiment unit (6 pigs/treatment). Three corn- and soybean meal-based diets contained 0.43 % (lysine-deficient, Diet I), 0.71 % (lysine-adequate, Diet II), and 0.98 % (lysine-excess, Diet III) l-lysine, respectively. After a 4-week period of feeding, jugular vein blood samples were collected from the pigs and plasma was obtained for AA analysis using established HPLC methods. The change of plasma lysine concentration followed the same pattern as that of dietary lysine supply. The plasma concentrations of threonine, histidine, phenylalanine, isoleucine, valine, arginine, and citrulline of pigs fed Diet II or III were lower (P < 0.05) than that of pigs fed Diet I. The plasma concentrations of alanine, glutamate, and glycine of pigs fed Diet II or III were higher (P < 0.05) than that of pigs fed Diet I. The change of plasma leucine and asparagine concentrations followed the patterns similar to that of plasma lysine. Among those affected AAs, arginine was decreased (P < 0.05) in the greatest proportion with the lysine-excess diet. We suggest that the skeletal muscle growth of finishing pigs may be further increased with a lysine-excess diet if the plasma concentration of arginine can be increased through dietary supplementation or other practical nutritional management strategies.

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Section: Introductionmentioning

confidence: 99%

Effects of dietary lysine levels on plasma free amino acid profile in late-stage finishing pigs

Regmi¹,

Wang²,

Crenshaw³

et al. 2016

SpringerPlus

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Optimum dietary arginine: Lysine ratio for broiler chickens is altered during heat stress in association with changes in intestinal uptake and dietary sodium chloride

Brake

Balnave²,

Dibner³

1998

British Poultry Science

102

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1. The effects of varying the dietary arginine:lysine (Arg:Lys) ratio for broiler chickens at thermoneutral and high temperatures was studied in a series of 5 experiments which measured intestinal epithelial transport or evaluated growth and food efficiency with practical diets or diets supplemented with L-arginine free base. 2. The growth studies showed that increasing the Arg:Lys ratio at high temperatures produced consistent improvements in food conversion without any loss in growth. 3. Increasing dietary sodium chloride concentration reduced the Arg:Lys ratio necessary for optimum food conversion. 4. Food conversion responses were improved whether L-arginine free base was used as a dietary supplement in place of an inert filler or practical diets with differing ingredients were used to vary the Arg:Lys ratio. 5. In the presence of an equimolar concentration of lysine the uptake of arginine by the intestinal epithelium of heat-stressed broilers was reduced significantly compared with that of broilers at thermoneutral temperatures. 6. The results indicate that the ideal amino acid balance for broilers varies with ambient temperature.

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Effects of lysine and sodium on the growth performance, bone parameter, serum composition and lysine-arginine antagonism in Broiler Chicks

Cited by 2 publications

References 0 publications

Effects of dietary lysine levels on plasma free amino acid profile in late-stage finishing pigs

Effects of dietary lysine levels on plasma free amino acid profile in late-stage finishing pigs

Optimum dietary arginine: Lysine ratio for broiler chickens is altered during heat stress in association with changes in intestinal uptake and dietary sodium chloride

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