Effect of urea-treated or untreated straw with cotton seed on performances of lactating Maradi (Red Sokoto) goats in Niger

alkali treatment caprin caprinos cottonseed diet dieta digestibilidad digestibility feed intake goats graine de coton grasa de la leche milk fat milk protein milk yield niger paille paja peso poids prise alimentaire (animaux) rendement laitier rendimiento lechero straw traitement aux alcalis tratamiento alcalino urea uree weight