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

Productive Performance of Silver Montazh Laying Hens Fed Diets Containing Different Levels of Protein and Energy

“…Also, the results did not show any significant differences in the interaction between protein and energy levels on the aforementioned traits. Our results agree with those of Alderey and Elweshahy (2019) and Alderey (2020) demonstrated that laying hens fed different levels of energy 2700 and 2850 ME (kcal/kg) and protein (14, 16, and 18%) showed no differences in terms of hatchability and chick weight. In the same trend Fekadu et al (2022) observed that hatchability and fertility were not significantly impacted by the dietary treatments (CP, ME, and their combination) when Z-White hens were fed diets with varied levels of dietary protein (14.5, 15.5, or 16.5%) and a 2850, 2750, or 2650 kcal/kg diet, respectively.…”

“…However, birds fed a low-energy diet containing 14% protein recorded the worst values of egg number, EW and daily EM, with lower value of hen day egg production rate%. This result corroborates Alderey and Elweshahy (2019) and Alderey (2020), who demonstrated that laying hens fed high-energy diets showed significant improvements in their final BW, change in BW, and EP rate. Furthermore, the feed consumption, DPI, PER, and MEE were higher in birds fed low-energy diets.…”

“…Also, Shell thickness was not significantly affected by the energy level in the diet. In the same trend, Alderey and Elweshahy (2019) and Alderey (2020) showed that Sinai laying hens fed different levels of protein (14, 16 and18%) and energy (2700 and 2850 ME kcal/kg) displayed insignificant variations in egg quality measurements. According to Hassan et al (2013), hens' egg quality was not significantly impacted by their protein or energy levels.…”