El estudio tuvo por objetivo evaluar el efecto de niveles del cobre suplementado en niveles farmacológicos sobre el comportamiento productivo, morfometría intestinal, cobre hepático y cobre en heces en cuyes durante 56 días. Se emplearon 60 cuyes machos destetados, distribuidos en cuatro tratamientos con cinco repeticiones por tratamiento y tres animales por repetición: T1, dieta basal (0 ppm Cu suplementado como sulfato de cobre); T2, dieta basal + 100 ppm Cu; T3, dieta basal + 200 ppm Cu; T4, dieta basal + 300 ppm Cu. No se encontró diferencia estadística en peso inicial, peso final, ganancia diaria de peso, consumo voluntario de alimento, conversión alimenticia y mortalidad. La suplementación con cobre causó una reducción significativa (p<0.05) de la altura de vellosidad intestinal y relación de altura de vellosidad con profundidad de cripta conforme se aumentó el nive...

El estudio tuvo por objetivo evaluar el efecto de niveles del cobre suplementado en niveles farmacológicos sobre el comportamiento productivo, morfometría intestinal, cobre hepático y cobre en heces en cuyes durante 56 días. Se emplearon 60 cuyes machos destetados, distribuidos en cuatro tratamientos con cinco repeticiones por tratamiento y tres animales por repetición: T1, dieta basal (0 ppm Cu suplementado como sulfato de cobre); T2, dieta basal + 100 ppm Cu; T3, dieta basal + 200 ppm Cu; T4, dieta basal + 300 ppm Cu. No se encontró diferencia estadística en peso inicial, peso final, ganancia diaria de peso, consumo voluntario de alimento, conversión alimenticia y mortalidad. La suplementación con cobre causó una reducción significativa (p<0.05) de la altura de vellosidad intestinal y relación de altura de vellosidad con profundidad de cripta conforme se aumentó el nive...

The aim of the present study was to evaluate the productive performance of commercial laying hens supplemented with four commercial sources of inorganic phosphates for four weeks. In total, 960 Hy-Line Brown hens of 56 weeks of age were distributed in 4 treatments with 6 repetitions each and 40 hens per repetition. The treatments were: T1, Diet with dicalcium phosphate (DCP)-Peru; T2, Diet with DCP-China; T3, Diet with mono-dicalcium phosphate (MDCP)-Peru; and T4, Diet with mono-calcium phosphate (MCP)-China. The diets were formulated to contain 0.36% available phosphorus and the other nutrients according to the nutritional specifications of the genetic line. The percentage of egg production, egg mass, feed consumption and feed conversion were recorded. Also, egg weight, eggshell percentage, yolk and albumen percentage, eggshell thickness, specific gravity, eggshell colour, yolk colour a...

The aim of this study was to evaluate the productive performance of broilers and the morphometric characteristics and indicators of tibial mineralization as an effect of the inclusion of five sources of commercial inorganic phosphate in the diet. Three hundred male BB chickens from the Cobb 500 Line were used, randomly distributed in six treatments with 10 repetitions per treatment and five birds per repetition. The birds were fed for 21 days with the following diets: T1, basal diet + food grade monosodium phosphate (MNaP); T2, basal diet + dicalcium phosphate (DCP); T3, basal diet + monodicalcium phosphate 1 (MDCP 1); T4, basal diet + monodicalcium phosphate 2 (MDCP 2); T5: basal diet + monocalcium phosphate 1 (MCP 1); T6, basal diet + monocalcium phosphate 2 (MCP 2). Productive variables were recorded: body weight, weight gain, feed consumption and feed conversion. The birds were slaug...

The aim of this study was to evaluate the productive performance of broilers and the morphometric characteristics and indicators of tibial mineralization as an effect of the inclusion of five sources of commercial inorganic phosphate in the diet. Three hundred male BB chickens from the Cobb 500 Line were used, randomly distributed in six treatments with 10 repetitions per treatment and five birds per repetition. The birds were fed for 21 days with the following diets: T1, basal diet + food grade monosodium phosphate (MNaP); T2, basal diet + dicalcium phosphate (DCP); T3, basal diet + monodicalcium phosphate 1 (MDCP 1); T4, basal diet + monodicalcium phosphate 2 (MDCP 2); T5: basal diet + monocalcium phosphate 1 (MCP 1); T6, basal diet + monocalcium phosphate 2 (MCP 2). Productive variables were recorded: body weight, weight gain, feed consumption and feed conversion. The birds were slaug...