Effect of Different Levels of Dietary Crude Protein, Lysine and Methionine on Performance of White Leghorn Laying Hens

Essential amino acid methionine is a methyl donor which involved in protein and fat metabolism; thus, it holds an important role in the synthesis of albumen and egg yolk precursors. This research aimed to observe the effect of methionine on the weight of egg and its components and to prove if egg weight (EW) could be used to predict the albumen weight (AW) and yolk weight (YW). In total, 225 quails were allotted into three treatments and five replicates each with fifteen individuals. The treatments were basal diet (T0), basal diet with methionine supplementationat 0.6 (T1) and 1.2 g/kg (T2). ANOVA was conducted to test the effect of treatments. Simple linear regressions were built to predict AW and YW based on EW. Cross validation procedure was applied to test the predictability of the models. Quails in T2 and T1 produced heavier eggs (9.29±0.52 and 9.04±0.76 g) compared to T0 (8.77±0.55 g). The AW follow similar trends which were 5.37±0.38, 5.53±0.54, 5.75±0.44 g for T2, T1 and T0, respectively. The YW slightly differ where T1 had higher weight (2.64±0.30 g) followed by T2 (2.62±0.27 g) and T0 (2.50±0.32 g). Pearson’s correlation between EW and AW were between 69-87%whereas for EW and YW were between 61-71%. Simple linear regression predicting AW and YW from EW had accuracies between 94.3-96.2% and92.7-94.3%, respectively. Thus, methionine supplementation had significant effect on egg and egg components weights. Linear regression can be utilized to predict AW and YW based on EW with high accuracy.

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Validating Egg Component Proportions in Quail Receiving Methionine Supplementation

Ratriyanto

Nurcahyo

Prastowo

et al. 2019

IOP Conf. Ser.: Earth Environ. Sci.

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Influence of Low-Protein Levels Fortified With Methionine and Energy on Productive and Reproductive Performance of Silver Montazah Laying Hens

Alderey

2020

Egyptian Journal of Nutrition and Feeds

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Effect of Different Levels of Dietary Crude Protein, Lysine and Methionine on Performance of White Leghorn Laying Hens

Cited by 2 publications

References 18 publications

Validating Egg Component Proportions in Quail Receiving Methionine Supplementation

Validating Egg Component Proportions in Quail Receiving Methionine Supplementation

Influence of Low-Protein Levels Fortified With Methionine and Energy on Productive and Reproductive Performance of Silver Montazah Laying Hens

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