المقالات العلمية - كلية الزراعة

Permanent URI for this collectionhttps://repository.neelain.edu.sd/handle/123456789/3068

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Author: search.filters.author.Talha E. AbbasSubject: search.filters.subject.carcass

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    Effects of Dietary Levels of Methionine on Broiler Performance and Carcass Characteristics
    (2011) Mohamed Elamin Ahmed; Talha E. Abbas
    Abstract: The present experiment was carried out to determine the effect of dietary methionine levels higher than NRC recommendation on broiler performance and carcass traits. Four dietary levels of methionine 0, 100, 120 and 130% of NRC recommendation were used. Dietary levels of methionine, expressed as percentage of NRC recommendations, significantly (p<0.05) affected feed intake, Feed Conversion Ratio (FCR) and Protein Efficiency Ratio (PER). Feed intake was numerically improved with 110 and 130% of NRC methionine, but was not improved by 120% NRC methionine. Body weight gain was significantly (p<0.05) improved by 110 and 130% of NRC methionine compared to the control. The broiler chicks on methionine higher than NRC showed significant (p<0.05) increase in absolute and relative weight of breast and significant (p<0.05) decrease in abdominal fat.
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    Effect of Dietary Phytocee and Zist on Broiler Performance and Carcass Characteristics
    (2016) Mohamed E. Ahmed; Nasir H. Mohamed; Talha E. Abbas
    Abstract: The present study was aimed at evaluation of growth performance and carcass characteristics of broiler chicks fed dietary polyherbal formulation Phytocee and Zist. One hundred and twenty day-old, unsexed broilers (Ross 308) with an initial live body weight of 46.78g ± 0.21 were randomly assigned to 3 dietary treatments, each consisting of 4 replicates with 10 birds each. The three starter and finisher experimental diets consisted of control (0.0% phytocee and 0.0% Zist), 0.03% phytocee and 0.03% Zist. Dietary treatments indicated no significant (p>0.05) effect on all live performance parameters through starter, finisher and overall period. However, overall body weight gain, FCR and PER were improved in Zist diet by 10.84, 11.68 and 9.80%, respectively compared to control. Carcass characteristics and internal organs showed no significant (p>0.05) differences in response to dietary treatments. The result of the current study revealed that Zist improves live performance parameters during different growth phases. Based on this finding, Zist could be added to either starter or finisher broiler diet with positive effects on broiler performance.