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Intake and digestibility of nutrients in Moxotó dairy goats fed diets with different Maniçoba hay levels

This research was conducted with the objective of evaluating the use of different Maniçoba hay (Manihot glaziovii Muell. Arg) levels (30, 40, 50 and 60%) on intake and apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), gross energy (GE), ether extract (EE), total carbohydrates (TCHT), non fiber carbohydrates (NFC), neutral detergent fiber (NDF), acid detergent fiber (ADF), water intake (WI), besides total digestible nutrients intake (TDNI). Eight multiparous Moxotó dairy goats with initial weight of 44,26 ± 4,23 kg were assigned to two 4 × 4 Latin squares design, with four treatments, four experimental periods and four animals. Each experimental period lasted 15 days (ten days for animal adaptation to diets and five days for feed, refusal and feces collection. Indigestible acid detergent fiber (iADF) was used as an internal marker to estimate fecal dry matter yield. The use of Maniçoba hay in the levels (30, 40, 50 and 60%) in diets did not affect the DM, OM, CP, EE, MM, and TCHT intakes. The NFC, TDN and water intakes decreased linearly with the increase of dietary hay levels while NDF and ADF (kg/day; %BW and g/kg0.75) intakes increased linearly. The apparent DM, OM, CP, EE, CHT, NFC, GE and ADF digestibility decreased linearly while the NDF digestibility was not affected with the increase in the dietary hay levels.

feeding; Manihot glaziovii Muell. Arg; native forage; nutritive value


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