Organic and inorganic copper salts utlization in the fattening of goats

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2008-08-25
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A 90 - day nutritional balance trial was conducted, with 12 West African Dwarf goats weighing between 12.3 and 12.8 kg between March and July, 2007. The animals were grouped into 4 dietary treatments of 3 goats per group, balanced for body weight, using copper salts - Cu proteinate, CuS04, CUNO3 as test ingredients, applied at 100 g/50 kg feed. The experiment assessed the effects of the different Cu salts when compared with control on Cu bioavailability, average daily gain (AD), feed intake, dry matter intake (DM1), water consumption, heart and liver weights, faecal Cu output, serum Cu, glucose and protein concentration, PCV, RBC, WBC, and Hb. Each of the 4 groups was randomly assigned to a Cu salt - based diet while the control (Tl) had no Cu salt inclusion. The trial lasted 90 days excluding 10 days adjustment to the test diet. Results indicate that all the salts - treated goats exhibited significantly (P<0.05) higher performances than the control group in all parameters considered although at varying magnitudes. Copper proteinate significantly (P<0.05) induced the highest feed intake(0.306 kg/d), ADG (41g), DMI (0.046 kg/W 07s kg), highest Cu bioavailability in the serum (119.17 mg/l) and optimum FCR (1.12). Cu proteinate seems to induce better responses in the goats than other Cu salts. It appears that Cu salt inclusion in the diet of WAD goats has beneficial effects on those parameters considered. Cu proteinate can be suggested as a salt of choice in case of Cu deficiency, depletion or anaemic condition in goats for faster and longer replenishment from the deficiency. About lOOg Cu proteinate/'50 kg feed is therefore recommended in the diet of growing WAD goats.
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A thesis submitted to the School of Graduate Studies, Kwame Nkrumah University of Science and Technology, Kumasi in partial fulfilment of the requirements for the award of Masters degree in Animal Nutrition, 2008
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