title: [Evaluation of different levels of amaranth flour (vegetative parts), in substitution for alfalfa flour for growing rabbits].
abstract: The vegetative part of the amaranth plant could be a useful resource for animal feeding due to its chemical characteristics and to the high yield obtained when harvested between 45 and 60 days after planting. Six diets were evaluated in order to determine the feed efficiency of amaranth (Amaranthus hypochondriacus) for growing rabbits. The diets contained dehydrated amaranth leaves and stalks in levels of 0, 15, 30, 45 and 60%, to replace equal amounts of alfalfa leaf meal. An additional diet containing 60% of steam-treated leaves and stalks of amaranth, for five minutes, prior to dehydration and milling, was also tested. The amaranth leaf meal contained 17.8% protein and 12.4% crude fiber as compared with the alfalfa leaf meal which contained 22.0% protein and 23.3% crude fiber. In terms of weight gain, feed intake, feed efficiency, carcass weight and serum proteins, the results indicated that amaranth leaf meal can efficiently replace alfalfa leaf meal up to 15% of the total weight of the diet. Higher levels, however, caused growth retardation and a pathological picture characterized by interstitial nephrosis and edema, more easily observed at a 60% level in the diet. Results also revealed that a steam treatment improves the nutritive quality of the amaranth meal.
authors.affiliation: Instituto de Nutrición de Centro América y Panamá (INCAP), Guatemala, C. A.
authors.forename: M A
authors.initials: MA
authors.lastname: Alfaro
authors.forename: R
authors.initials: R
authors.lastname: Ramírez
authors.forename: A
authors.initials: A
authors.lastname: Martínez
authors.forename: R
authors.initials: R
authors.lastname: Bressani
mesh_terms: D000821:Animal Feed; D000818:Animals; D001798:Blood Proteins / Q000032:analysis; D001835:Body Weight; D004044:Dietary Proteins / Q000032:analysis*; D005433:Flour; D019684:Magnoliopsida; D000455:Medicago sativa; D009753:Nutritive Value; D011817:Rabbits
chemical_list: D001798:Blood Proteins; D004044:Dietary Proteins
vernacular_title: Evaluación de diferentes niveles de harina de amaranto (partes vegetativas), en sustitución de harina de alfalfa para conejos en crecimiento.