University of Khartoum

Effect of Dietary Supplementation of Liquid Amino Acids and Vitamins on the Performance of Two Substrains of Hubbard Broiler under Sudan Conditions

Effect of Dietary Supplementation of Liquid Amino Acids and Vitamins on the Performance of Two Substrains of Hubbard Broiler under Sudan Conditions

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Title: Effect of Dietary Supplementation of Liquid Amino Acids and Vitamins on the Performance of Two Substrains of Hubbard Broiler under Sudan Conditions
Author: Almisbah, Khalid Abdel Rahman Alobaid
Abstract: This study was conducted to investigate the effect of adding liquid amino acids and vitamins supplementation to drinking water on commercial broilers represented by two substrains of Hubbard, Hubbard classic and Hubbard F15, on the performance parameters, internal organs and blood serum parameters include serum glucose, serum cholesterol and serum total protein during winter under Sudan conditions. The experiment was carried out in an open house system in the Poultry Unit of the Faculty of Animal Production, University of Khartoum. Eighty day-old unsexed hybrid broiler chicks, 40 chicks from Hubbard classic and 40 from Hubbard F15, obtained from Ommat Commercial Company were used. The chicks were randomly assigned on factorial arrangement into two groups and statistical analysis were performed using analysis of variance. Each substrain of Hubbard was divided into 4 replicates of 10 birds each (80 birds). Twenty birds from each substrain were provided with ml/l from the supplementation of liquid amino acids and vitamins in drinking water. The birds were fed on pre starter, starter and finisher isonitrogenous and isocaloric diets according to NRC requirements for poultry. Feed and water were provided ad libitum, feed intake and body weight were recorded weekly, weight gain and feed conversion ratio (FCR) were calculated, and the experiment lasted for 7 weeks. Birds were weighed and slaughtered for determining carcass dressing percentage, internal organs weight and blood serum parameters analysis. The results indicated that there was no significant (p>0.05) difference between the viii two substrains in final body weight and dressing percentage. Adding liquid amino acids and vitamins had no significant (P>0.05) effect on final body weight of both substrains of Hubbard. There were significant (P<0.05) differences between the two substrains in weekly body weight at the first three weeks, Hubbard classic birds revealed higher body weight than Hubbard F15, but no significant (P>0.05) different between the two substrains after using the supplementation. The results showed an increase in weekly body weight gain (P≤0.05) of classic substrain in the first three weeks and 7th week. There was no significant effect of adding the supplementation on carcass weight, FCR, weekly body weight gain, heart, liver, gizzard weight and blood serum parameters. On the other hand, there was a significant (P≤0.05) increase in FCR for Hubbard classic at 7th week and increase in FCR at first week for F15 substrain. Hubbard classic showed higher weight of abdominal fat than Hubbard F15. As a conclusion, there was no improvement in performance of Hubbard chicks after adding liquid amino acids and vitamins; also there were no differences between Hubbard classic and Hubbard F15 in performance, internal organs and blood parameters. The study recommended that further studies to assess the effect of supplementation of liquid amino acids and vitamins when implemented at the first week.
Description: 65 Pages
URI: http://khartoumspace.uofk.edu/123456789/26605


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