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Asian-Australas J Anim Sci > Volume 10(5); 1997 > Article
Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 1997;10(5): 534-539.
DOI: https://doi.org/10.5713/ajas.1997.534    Published online October 1, 1997.
Performance of growing goats experimentally infected with stomach worm (Haemonchus contortus)
M. M. R. Howlader, S. S. Capitan, S. L. Eduardo, N. P. Roxas, C. C. Sevilla
A uniform group of 12 upgrade grower goats of 6.0 - 7.5 months old were used in this study. They were equally divided into three groups of T1, T2 and T3 and were infected orally with three levels (0, 5,000 and 10,000 larvae) of infective Haemonchus contortus larvae. Before infection, all animals were housed in individual pens with concrete floor. They were provided with a uniform management. Comparison of body weight change of infected and uninfected grower goats were done using weekly body weights. There was significant (p < 0.01) interaction between the effect of stomach worm infection and duration of infection on body weight. The infected groups (2 and 3) weighed significantly (p < 0.05) less than the control group from week 18 to 21. The animals of control group gained an average of 2.85 kg with 18.75 g average daily gain (ADG) in 152 days, which were significantly higher than those of animals in the infected groups. There was significant effect of H. contortus infection on the preslaughter weights of grower goats. The hot carcass weights of the infected goats were significantly lower than the uninfected group. No significant difference in dressing percentage of infected and uninfected groups was observed.
Keywords: Growth; Grower; Goat; Stomach Worm; Experimental Infection

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