Effects of Methionine Supplementation in Low-Protein Diets and Subsequent Re-feeding on Growth Performance, Liver and Serum Lipid Profile, Body Composition and Carcass Quality of Broiler Chickens at 42 Days of Age

Nukreaw, Rattana; Bunchasak, Chaiyapoom; Markvichitr, Kanchana; Choothesa, Apassara; Prasanpanich, Somkiert; Loongyai, Wiriya

doi:10.2141/jpsa.010064

Cited by 21 publications

(19 citation statements)

References 38 publications

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“…Accordingly, breast meat production of chicks fed with Low-CP diet was poorest, whilst Low-CP-Met + Lys diet still had similar outer breast meat compared to that of the conventional diet group. This is in accordance with the findings of Nukreaw et al (2011). Surprisingly, abdominal fat content in chicks fed with Low-CPMet + Lys was higher than that of the conventional diet group, although energy consumption was not elevated and breast meat yield production was still promoted.…”

Section: Carcass Qualitysupporting

confidence: 91%

“…This finding is in according with generally accepted finding that diets with low protein level increase energy retention as fat (Swennen et al, 2004), and that supplementation with essential amino acids in the low protein diets promotes meat production and reduce fat content (Schutte and Pack, 1995;Nukreaw et al, 2011). Explanations of these phenomena have been reported extensively.…”

Section: Carcass Qualitysupporting

confidence: 80%

“…Poor weight gain and FCR in broilers subjected to lowprotein diets or diets with suboptimal levels of Met have been reported (Nukreaw et al, 2011;Rakangtong and Bunchasak, 2011). Adding Met to low protein diets improved body weight gain, PER and FCR of broiler chicks (Bunchasak et al, 1997;Cheng et al, 1997).…”

Section: Growth Performancementioning

confidence: 96%

“…In the present study, chicks fed the Low-CP + Met + Lys diets had higher plasma triglyceride and VLDL than those fed with conventional diet group at both 21 and 42 days of age. Likewise, Nukreaw et al (2011) found that adding Met to a low protein diet linearly increased the triglyceride and VLDL concentrations in serum. The increase in serum VLDL by Met supplementation may be caused by the stimulation of triglyceride-rich lipoprotein secretion from the liver (Ho et al, 1989) or by depression of the activity of lipoprotein lipase (Wegner et al, 1978).…”

mentioning

confidence: 93%

“…However, inconsistencies of improvement of growth performance due to amino acid supplementation in Low-CP diets have been observed (Keshavarz and Austic, 2004). Recently, Nukreaw et al (2011) suggested that reducing the protein concentration with Met supplementation during 1-21 days of age, then re-feeding with a conventional diet is an appropriated tool for improving overall protein utilization, reducing fat accumulation and slightly reducing the production cost. Azarnik et al (2010) also found that supplementing a Low-CP diet with amino acids during starter period may partially correct the depression in the growth performance of broilers after re-feeding.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Supplementing Synthetic Amino Acids in Low-protein Diet and Subsequent Re-feeding on Growth Performance, Serum Lipid Profile and Chemical Body Composition of Broiler Chickens

Nukreaw

Bunchasak

2015

J. Poult. Sci.

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This study was conducted to evaluate the effects of supplementing methionine (Met) and lysine (Lys) in low protein (Low-CP) diet during 1-21 days of age, and subsequent re-feeding with conventional diet during 22-42 days of age on growth performance, serum lipid profile, chemical body composition and carcass quality of broiler chickens. During 1-21 days of age (starter period), 480 male broiler chicks (Ross 308) were divided into three treatments and given the following diets: 1) conventional diet group (all nutrients met the requirements of the strain), 2) Low-CP diet without Met and Lys supplementation and 3) the Low-CP diet supplemented with Met and Lys (Low-CP + Met + Lys). During the finisher period (22-42 days of age), all groups were fed a diet containing the same nutrients in accordance with the recommendations of the strain. At 21 days of age, Low-CP + Met + Lys diet showed significantly better growth performance and breast meat yields than those of the Low-CP diet group. Feed and protein intake of the chicks fed conventional diet was significantly higher than both of the other groups (P＜0.01), whereas Low-CP + Met + Lys diet clearly improved protein efficiency (P＜0.01). Feeding Low-CP diet increased abdominal fat content and body energy content (P＜0.05), while the supplementing synthetic amino acids slightly decreased the fat content. Triglyceride, very low density lipoprotein (VLDL) and T3 hormone in blood were significantly increased in Low-CP + Met + Lys diet group compared to the conventional diet (P＜0.05). After the re-feeding phase, feeding Low-CP diet groups were unable to compensate body weight equal to the conventional diet, although a compensation of FCR was observed. Feeding Low-CP + Met + Lys diet showed the same breast meat yield compared to the conventional diet, but abdominal fat, triglyceride and VLDL in blood were significantly increased (p＜0.05). In conclusion, supplementing Met + Lys in Low-CP diet improved performance production, but was still inferior to the conventional diet.

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Section: Carcass Qualitysupporting

confidence: 91%

Section: Carcass Qualitysupporting

confidence: 80%

Section: Growth Performancementioning

confidence: 96%

mentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Effect of Supplementing Synthetic Amino Acids in Low-protein Diet and Subsequent Re-feeding on Growth Performance, Serum Lipid Profile and Chemical Body Composition of Broiler Chickens

Nukreaw

Bunchasak

2015

J. Poult. Sci.

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Relative biological efficacy of methionine hydroxy analogue‐free acid compared to dl‐methionine in the broiler chickens

Zarghi,

Ghavi

2024

Veterinary Medicine & Sci

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BackgroundIn the broiler's diets based on corn–soya bean meal, methionine (Met) and cystine (Cys), known as sulphur amino acids (SAAs), are the first limiting indispensable amino acids because of their limited presence, which are supplemented with different synthetic sources. Evaluation of the biological effectiveness of these sources can be important in their correct replacement, especially in the starter and growth diets.ObjectivesThe current study was done to assess the relative biological efficacy (RBE) of liquid Met hydroxy analogue‐free acid (MHA‐FA) in comparison with dl‐Met (dl‐Met) based on broiler performance traits at different levels of digestible SAA in the 1–11 (starter) and 11–25 (grower) days of age periods.MethodsTwo experiments were developed with treatments consisting of a basal diet without Met addition that met the nutrient and energy requirements of broilers with the exception of SAAs (Met + Cys) and five increasing Met doses for both sources (dl‐Met and/or MHA‐FA), resulting in digestible SAA concentrations from 0.62% to 1.02% of diet in the starter period (Trial 1) and 0.59% to 0.94% of diet in the grower period (Trial 2). The multi‐linear regression model and slope ratio method were employed to calculate the RBE of MHA‐FA compared with dl‐Met for measured variables.ResultsIn both experiments, the results obtained during the starter and grower periods with the different Met supplementations show significant growth responses to digestible SAAs levels. By increasing dietary dl‐Met and/or MHA‐FA levels, the growth performance traits and immune responses were improved (quadratic; p < 0.05). The RBE of MHA‐FA compared to dl‐Met on an equimolar basis was estimated 66%–89% (59%–79% on a weight‐to‐weight basis).ConclusionsIt is concluded that the RBE of MHA‐FA in comparison with dl‐Met depends on broiler chicken age and what attribute is being evaluated.

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Periodic usage of low-protein methionine-fortified diets in broiler chickens under high ambient temperature conditions: effects on performance, slaughter traits, leukocyte profiles and antibody response

Ghasemi

Ghasemi²,

Torki

2013

Int J Biometeorol

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This study was performed to evaluate the effects of adding methionine supplements to low-protein diets and subsequent re-feeding with a normal diet on the productive performance, slaughter parameters, leukocyte profiles and antibody response in broiler chickens reared under heat stress conditions.During the whole experimental period (6-49 days), the birds were raised in battery cages located in high ambient temperature in an open-sided housing system. A total of 360 6-day-old male chickens were divided into six treatments in six replicates with ten chicks each. Six isoenergetic diets, with similar total sulfur amino acids levels, were formulated to provide 100 and 100 (control), 85 and 100 (85S), 70 and 100 (70S), 85 and 85 (85SG), 70 and 85 (70S85G), and 70 and 70% (70SG) of National Research Council recommended levels for crude protein during the starter (6-21 day) and grower (22-42 day) periods, respectively. Subsequently, all groups received a diet containing the same nutrients during the finisher period (43-49 day). The results showed that, under heat stress conditions, average daily gain and feed conversion ratio and performance index from day 6 to 49, breast and thigh yields and antibody titer against Newcastle disease in the birds fed diets 85S, 70S and 85SG were similar to those of birds fed control diet, whereas feeding diets 70S85G and 70SG significantly decreased the values of above-mentioned parameters. Additionally, diets 85S, 70S and 85SG significantly decreased mortality rate and heterophil:lymphocyte ratio compared with the control diet. In conclusion, the results indicate that supplementation of methionine to diets 85S, 70S and 85SG, and then re-feeding with a conventional diet is an effective tool to maintain productive performance and to improve health indices and heat resistance in broilers under high ambient temperature conditions.

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Effects of Methionine Supplementation in Low-Protein Diets and Subsequent Re-feeding on Growth Performance, Liver and Serum Lipid Profile, Body Composition and Carcass Quality of Broiler Chickens at 42 Days of Age

Cited by 21 publications

References 38 publications

Effect of Supplementing Synthetic Amino Acids in Low-protein Diet and Subsequent Re-feeding on Growth Performance, Serum Lipid Profile and Chemical Body Composition of Broiler Chickens

Effect of Supplementing Synthetic Amino Acids in Low-protein Diet and Subsequent Re-feeding on Growth Performance, Serum Lipid Profile and Chemical Body Composition of Broiler Chickens

Relative biological efficacy of methionine hydroxy analogue‐free acid compared to dl‐methionine in the broiler chickens

Periodic usage of low-protein methionine-fortified diets in broiler chickens under high ambient temperature conditions: effects on performance, slaughter traits, leukocyte profiles and antibody response

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