E-ISSN 2536-9520 | ISSN 1110-2047
 

Original Article 


Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine

Ramadan S. Shewita, Mohamed I. El-Katcha, Hamada A. Ahmed.

Abstract
An experiment was conducted for a period of 42 days to assess the possible substitution of synthetic DL-methionine (DL-Met) by herbal methionine (H-Met) with graded levels on growth performance, immune response and carcass traits of broiler chicks. A total of 150-day-oldArber Acer chicks were randomly allotted into five experimental groups (30 chicks/group), each group with three replicates of 10 birds per replicate. Group 1 of birds was kept as a control group and the birds fed the basal diet containing the full methionine requirement (100%) from DL-Met without any H-Met substitution. While, other experimental groups fed on basal diet with DL-Met / H-Met at percentage of 75/25, 50/50, 25/75 and 0/100 for groups 2 – 5 respectively. The results showed that, 50% replacement of DL- Met by H- Met improved (P≥0.05) final body weight and weight gain by about 2.2% and 2.3% respectively when compared with chick of control group. H- Met inclusion had no effect on feed intake, while 50% replacement of 50% of synthetic methionine by H- Met non-significantly (P≥0.05) improved FCR, PER, EEU and PI by about 2.1%, 2.4%, 2.2% and 4.2% respectively when compared with the control. 50% replacement of synthetic Met by H- source non-significantly reduced blood serum triglyceride, cholesterol, GPT and ALP when compared with the control. 50% of synthetic Met replacement by H- Met synergistically together and had immune-stimulant effect and lower fat liver content of broiler chickens.

Key words: Broiler, Synthetic, Herbal, Methionine, Growth, Immune, Carcass.


 
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How to Cite this Article
Pubmed Style

Shewita RS, El-Katcha MI, Ahmed HA. Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine. AJVS. 2018; 58(1): 31-39. doi:10.5455/ajvs.299327


Web Style

Shewita RS, El-Katcha MI, Ahmed HA. Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine. https://www.alexjvs.com/?mno=299327 [Access: December 03, 2023]. doi:10.5455/ajvs.299327


AMA (American Medical Association) Style

Shewita RS, El-Katcha MI, Ahmed HA. Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine. AJVS. 2018; 58(1): 31-39. doi:10.5455/ajvs.299327



Vancouver/ICMJE Style

Shewita RS, El-Katcha MI, Ahmed HA. Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine. AJVS. (2018), [cited December 03, 2023]; 58(1): 31-39. doi:10.5455/ajvs.299327



Harvard Style

Shewita, R. S., El-Katcha, . M. I. & Ahmed, . H. A. (2018) Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine. AJVS, 58 (1), 31-39. doi:10.5455/ajvs.299327



Turabian Style

Shewita, Ramadan S., Mohamed I. El-Katcha, and Hamada A. Ahmed. 2018. Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine. Alexandria Journal of Veterinary Sciences, 58 (1), 31-39. doi:10.5455/ajvs.299327



Chicago Style

Shewita, Ramadan S., Mohamed I. El-Katcha, and Hamada A. Ahmed. "Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine." Alexandria Journal of Veterinary Sciences 58 (2018), 31-39. doi:10.5455/ajvs.299327



MLA (The Modern Language Association) Style

Shewita, Ramadan S., Mohamed I. El-Katcha, and Hamada A. Ahmed. "Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine." Alexandria Journal of Veterinary Sciences 58.1 (2018), 31-39. Print. doi:10.5455/ajvs.299327



APA (American Psychological Association) Style

Shewita, R. S., El-Katcha, . M. I. & Ahmed, . H. A. (2018) Growth Performance, Immune Response and Carcass Status of Broiler Chickens Fed Diets Contain Different Sources of Methionine. Alexandria Journal of Veterinary Sciences, 58 (1), 31-39. doi:10.5455/ajvs.299327





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