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Protein and energy requirements for maintenance of indigenous Granadina goats

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The study aims to identify the protein and energy requirements for maintenance in the Granadina goat breed.
Conducted two experiments with sixteen adult castrated male Granadina goats.
Measured digestibility, nitrogen, and energy balance using open-circuit respiration chambers.
Given two diets of lucerne hay and barley at maintenance level once daily.
Endogenous urinary nitrogen estimated at 119 mg/kg body weight per day and maintenance nitrogen requirement at 409 mg total N/kg per day.
Fasting heat production measured at 324 kJ/kg body weight.
Energy requirement for maintenance calculated at 443 kJ/kg body weight with a utilization efficiency of 0.73.

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Randomized trial determines protein and energy needs in Granadina goats, suggesting dietary optimization for maintenance.

Prieto et al. (1990) studied this question.

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