Lysine and Arginine Requirements of Broiler Chickens at Two- to Three-Week Intervals to Eight Weeks of Age

Labadan, M. C.; Hsu, Kun Nan; Austic, R. E.

doi:10.1093/ps/80.5.599

Cited by 102 publications

(75 citation statements)

References 23 publications

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“…These findings are consistent with those recently reported (Fernandez et al, 2009;RuizBasoo et al: Arginine Needs of Growing Broilers Reared at High Land 305 Plasma nitric oxide** (μmol) Kidd et al (2001) reported that supplementing broiler diets with 2 g/kg Arg beyond the NRC requirements even under normal conditions resulted in improved growth performance. While some reports (Labadan et al, 2001) on estimation of Arg requirements for of 3-to 6-wk-old broilers indicated that the requirements for maximum weight gain and feed efficiency were lower than the NRC (1994) recommendation, our findings clearly show that the NRC recommendations for Arg are not sufficient for maximizing BW gain and optimizing feed: gain for broilers grown at high altitude. Broken-line analysis indicated the levels of Arg needed for optimal body weight gain and feed:gain responses were 12.4 and 12.1 g/kg of the diet.…”

Section: Discussioncontrasting

confidence: 88%

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Re-evaluation of Arginine Requirements for Broilers Exposed to Hypobaric Condition during the 3-to 6-week Period

et al. 2012

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In order to estimate arginine (Arg) requirements of male broilers (Ross 308) during the 21-to 42-day period and exposed to hypobaric condition, six diets (200 g/kg CP and 13.4 MJ ME/kg) with graded levels of Arg (8.8 to 14.3 g/kg) were allocated to four pens of twelve birds each. Body weight gain, feed:gain, breast meat yield, plasma nitric oxide (NO) concentration, and right to total ventricular weight ratio (RV/TV) were determined as response criteria. Responses to Arg supply were nonlinear and attained plateau values (y max ) within the studied range of Arg supply. The estimated Arg requirements for maximal body weight gain and optimal feed:gain during the 21 days under study were 12.4, and 12.2 g/kg of diet, respectively. The estimated Arg requirement for maximizing breast meat yield was 12.6 g/kg of diet. Based on the response in plasma NO and RV/TV, the estimated requirements were 13.0, and 13.2 g/kg of diet, respectively. Data obtained for the individual factors clearly indicate that the NRC recommendations for Arg are not sufficient for maximizing body weight gain, optimizing feed:gain and preventing the onset of pulmonary hypertension in broiler chickens exposed to hypobaric condition. Data may be used for future modeling of broilers' Arg requirements.

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Section: Discussioncontrasting

confidence: 88%

“…Broken-line analysis indicated the levels of Arg needed for body weight gain and feed:gain responses were 12.4 and 12.2 g/kg of diet, respectively. These Arg estimates for growth responses are higher than those previously reported by Labadan et al (2001) as well as published standards (NRC, 1994).…”

Section: Resultscontrasting

confidence: 66%

Re-evaluation of Arginine Requirements for Broilers Exposed to Hypobaric Condition during the 3-to 6-week Period

et al. 2012

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“…It is noteworthy that carry-over effects of amino acid balance have not always been reported in more practical research (Skinner et al, 1992). As demonstrated at a later age, factors such as feathering and environmental temperature (Zarate et al, 2003a and b) or lysine/arginine ratio in the feed (Labadan et al, 2001;Chamruspollert et al, 2002) might interfere with the amino acid/energy balance in very young chicks and indirectly act on the variations of feed conversion from 3 to 10 days of age in the present work.…”

Section: Discussionmentioning

confidence: 55%

Early lysine deficiency in young broiler chicks

Bastianelli

Quentin

Bouvarel

et al. 2007

Animal

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The carry-over effect of a pre-starter diet (0 to 3 days of age) deficient in lysine on subsequent growth and body composition (3 to 10 days) was examined in two experiments on male broiler chicks raised in cages. In experiment 1, lysine deficiency was applied from 3 to 10 days after providing a balanced pre-starter control feed (Dþ, 1.40% lysine) or a lysine deficient feed (D2) during the first 3 days. Three levels of deficiency (A ¼ 0.63%, B ¼ 0.72%, C ¼ 0.82%) were tested. Growth and feed intake were higher in Dþ than in D2 chicks ( P , 0.001). However, the feed conversion ratio from 3 to 10 days of age was higher in Dþ chicks ( P , 0.001); pre-starter and starter feeds interacted ( P , 0.04) with the feed conversion of treatment D2/A ¼ 2.07 being better than treatment Dþ/A ¼ 2.61 ( P , 0.05). This suggests that chicks deficient from hatching exhibit a relatively lower sensitivity to lysine deficiency than chicks started on a control diet. In experiment 2, performance, slaughter parameters and body composition were analysed at 3 and 10 days of age, in chicks having received a lysine deficient feed (D0, 0.72% lysine), a control feed (Dþ, 1.40% lysine) or having been pair fed with control feed adjusted to D0 intake (PF) from 0 to 3 days of age, and then fed D0 ad libitum from 3 to 10 days of age. At 3 days, PF chicks had a higher body weight ( P , 0.05) than D0, and thus a better feed conversion. Body composition in relative values was little or not affected by dietary treatments, but the breast muscle weight at 3 days was higher in Dþ and PF chicks compared with D0 ( P , 0.05) and this effect was even accentuated at 10 days of age. The present work confirms that early nutrition can have subsequent consequences on the adjustment of fast growing broiler chicks to their nutritional conditions. It also suggests that breast muscle development is a more reactive parameter than whole body composition in this kind of experiments.

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“…However, in the case of LM model, the main effect of dThr was higher than the main effect of dMet (1.2-fold) and dLys (1.7-fold), and the highest factor interaction effects exist between dThr and dMet. During starter period, Labadan et al (2001) reported that dLys requirements of starting broilers for maximum breast meat yield is 1.24% of diet. Lys is the reference amino acid in ideal protein concept and in this study, the optimal dLys was estimated at 1.05% of diet for maximum BM, which was lower than that reported by Labadan et al (2001).…”

Section: Discussionmentioning

confidence: 99%

“…During starter period, Labadan et al (2001) reported that dLys requirements of starting broilers for maximum breast meat yield is 1.24% of diet. Lys is the reference amino acid in ideal protein concept and in this study, the optimal dLys was estimated at 1.05% of diet for maximum BM, which was lower than that reported by Labadan et al (2001). The lower estimated value in this study may be related to the statistical method for data analysis and taking into account the effects of two other amino acid in the models (Pesti et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Growth responses of breast and leg muscles to essential amino acids in broiler chicks

Mehri

Kasmani

Rokouei

2016

Animal

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The first three essential amino acids (EAA) for broilers including methionine (Met), lysine (Lys) and threonine (Thr) may greatly influence the growth of chick muscles at early stages of life. In order to survey the potential effects of those EAA on growth muscles, a rotatable three-variable central composite design (CCD) was conducted to track the interrelationships of dietary digestible Met (dMet), Lys (dLys) and Thr (dThr) for optimization of processing yields in broiler chicks using response surface methodology. A total of 60 floor pens of six birds each were assigned to 15 dietary treatments based on CCD containing five levels of dMet (0.416% to 0.584% of diet), dLys (0.881% to 1.319% of diet) and dThr (0.532% to 0.868% of diet) from 3 to 16 days of age. Experimental treatments significantly affected breast mass (BM) and leg mass (LM) of the birds ( P < 0.05) in which the main effect of dLys on BM was threefold higher than the main effect of dThr, and interaction effect between dMet and dLys was observed on BM ( P < 0.05). However, in the case of LM, the main effect of dThr was higher than the main effects of dMet and dLys and highest interaction effect exist between dThr and dMet ( P < 0.05). The second-order models for BM and LM were fitted by least squares regression. Canonical analysis revealed that the stationary points for carcass components were saddle points, thus ridge analysis was performed for getting optimal values of each EAA. Ridge analyses of BM and LM models showed that the maximum BM point may be obtained with 0.58%, 1.05% and 0.76% of dMet, dLys and dThr, respectively, in diet, and maximum LM point may be achieved with 0.58%, 1.09% and 0.70% of dMet, dLys and dThr, respectively, in diet. The resultant ideal ratios of dMet and dThr to dLys were 55% and 72% for BM; 53% and 64% for LM. Moreover, sensitivity analysis showed that the most important amino acids in BM and LM models were Lys and Thr, respectively. In conclusion, providing these three amino acid for BM optimization may warrant LM optimization and higher ideal ratios of dMet and dThr for breast muscle may indicate the higher importance of these EAA in this muscle than those in thigh muscle.

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Lysine and Arginine Requirements of Broiler Chickens at Two- to Three-Week Intervals to Eight Weeks of Age

Cited by 102 publications

References 23 publications

Re-evaluation of Arginine Requirements for Broilers Exposed to Hypobaric Condition during the 3-to 6-week Period

Re-evaluation of Arginine Requirements for Broilers Exposed to Hypobaric Condition during the 3-to 6-week Period

Early lysine deficiency in young broiler chicks

Growth responses of breast and leg muscles to essential amino acids in broiler chicks

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