American Journal of Food Science and Health
Articles Information
American Journal of Food Science and Health, Vol.2, No.4, Aug. 2016, Pub. Date: Jul. 15, 2016
Effect of Diets Containing Graded Levels of Eggshell Meal on Bone Parameters, Organ Weights and By-Products of Growing West African Dwarf Goats
Pages: 55-59 Views: 744 Downloads: 199
Authors
[01] Ode C., Department of Animal Breeding and Physiology, Federal University of Agriculture Makurdi, Nigeria.
[02] Addass P., Department of Animal Breeding and Physiology, Federal University of Agriculture Makurdi, Nigeria.
[03] Dim N., Department of Animal Breeding and Physiology, Federal University of Agriculture Makurdi, Nigeria.
Abstract
A 12 week trial was conducted to investigate the effect of incorporating eggshell meal (ESM) at graded levels into the diets of West African Dwarf (WAD) bucks as a calcium source. Bone parameters as well as organ and by-products weights were evaluated. Twenty (20) WAD bucks weighing 5.7kg on the average were caged individually inside a conventional open-sided house. The bucks were randomly divided into four (4) groups, each group consisting of five (5) animals. The animals in groups 1, 2, 3 and 4 were provided with diets containing 0.0%, 0.5%, 1.0% and 1.5% ESM respectively with group 1 serving as the control. The animals were given known quantity of supplementary feed, forage (Andropogon gayanus corn) and water between 8 and 9am every morning. Two animals were randomly selected from each group and slaughtered for carcass analysis after which a pair of their femur bones were removed and measured and strength test using the Universal testing machine. Results showed that increase in the level of ESM inclusion across treatments yielded significant variability (P<0.05) on the bones Nominal diameter, Actual Length, Gauge Length and Breaking strength. The Weight of the bones also varied significantly (P<0.01) but non-significant difference was observed on Area of the bones. The organ weights (Heart, Liver, Kidney, Lungs and Spleen) did not show significant variability (P>0.05) across treatments. The horns weight varied significantly (P<0.05) but the other by-products weights (Hooves, Gastro intestinal tract full and empty as well as Abdominal fats) did not vary significantly (P>0.05) across the treatments. It was therefore concluded that growing WAD bucks can tolerate the inclusion of 1.5% properly sterilized ESM in their diet as source of Ca with no detrimental effect on bone parameters, organ and By-products weights.
Keywords
Eggshell Meal, Bone Strength, Organ Weight, By-Products, Goat
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