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Effects of feeding high levels of cactus (Opuntia fícus-indica Mill) cladodes on urinary output and electrolyte excretion in goats |
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| Authors: | EL Vieira MV Batista AF Mustafa RFS Araújo PC Soares EL Ortolane CK Mori |
| Institution: | aDepartmento de Zootecnia, Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros, S/N, Dois Irmãos, 52171-900 Recife, PE, Brazil bBolsista do CNPq, Brazil cDepartment of Animal Science, McGill University, 21111 Lakeshore Road, Ste-Anne-De-Bellevue, QC, Canada H9X 3V9 dUniversidade de São Paulo, Rua da Reitoria, 109—Butantã, 05508-900, São Paulo, Brazil |
| Abstract: | A study was conducted to determine the effects of feeding spineless cactus cladodes on diuresis and urinary electrolyte excretion in goats. Five bucks were used in a 5 × 5 Latin square experiment with 17-day periods. Experimental diets contained (g/kg dry matter (DM) basis) 370, 470, 570, 670, and 770 spineless cactus cladodes. Water consumption from feed and urine output increased linearly (P < 0.05) as the level of cactus cladodes in the diet increased. However, water intake from drinking was low and unaffected by cactus cladode level. Creatinine clearance and urinary Na excretion were similar for all dietary treatments while K excretion decrease linearly (P < 0.05) as the level of cactus cladodes in the diet increased. Feeding cactus cladodes caused diuresis and reduced urinary K excretion in goats. Possible reasons for these effects include water over-consumption from cactus cladodes and high dietary K intake. |
| Keywords: | Cactus cladodes Diuresis Goats Renal excretion |
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