Growth Performance and Carcass Yield of Three Commercial Strains of Broiler Chickens raised in a Tropical Environment I Udeh*, P N Ezebor and P O Akporahuarho Department of Animal Science, Delta State University, Asaba Campus *Corresponding Author: udehifeanyichukwu@ymail.com
Abstract
The aim of this study was to evaluate the growth performance and carcass yield of three commercial strains of broiler chickens namely Arbor Acre, Marshal and Ross reared in a tropical environment. 150 day old chicks per strain were brooded in separate brooding pens from day old to 2 weeks of age. At two weeks of age, each strain was separated into sexes and each sex replicated thrice and randomly placed into
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Note: M: male, F: female. There was no significant (p>0.05) strain by sex interaction on the weight gain of the broilers at 4 week of age. During week 5 , Arbor Acre males, Ross males and Ross females gained the highest weight compared to Arbor females, Marshal males and Marshal females whose body weight gain were not significantly (p>0.05) different from each other. This is in line with Abdullah et al (2010) who reported significant (p<0.01) strain x gender interaction on the weight gain of broilers at 28-35 days of age. In week 6, Arbor Acre male gained the highest weight, followed closely by Ross female and Marshal male. The least was Arbor Acre female. Similarly, Arbor Acre male maintained its superiority over others in body weight gain during week 7 and 8. This was followed by Ross male. The least was marshal female (7-8 weeks). This is also in line with Abdullah et al (2010) who reported that male broilers tend to gain more weight than females possibly due to their genetic makeup during the embryonic stage, which lead to having different growth potential that varied according to their strain and gender. The effect of strain of broiler chicken on feed intake is shown in Table 6. There was no significant (p>0.05) difference between strain in feed intake at weeks 1, 2 and 4. However, in weeks 3, 5, 6, 7 and 8, significant (p<0.05) between strain differences in …show more content…
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Nial Wheate, a senior lecturer in Pharmaceutical Chemistry at the University of Sydney, wrote the persuasive article "Red meat 's a tasty treat but too much can give you cancer". His intention is to inform the Australian meat lovers that the properties found in red meat can increase the risk of cancer. With a serious and concerning tone Wheate appeals to the logic and reasoning of the audience by the use of statistics. The formal tone leads to the belief that this is an issue that needs to be addressed immediately. The article incorporates two photograph, one of raw pieces of red meat and the other of four sausages on a plate, to draw the reader in by seeing some of Australia 's most iconic foods.
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