Effect of fortifying amaranth diets with amino acids, casein and ethylene diamine tetra acetate on broiler performance, amino acid availability and mineral utilisation

Abstract

Two feeding trials with broilers (1-31 days of age) were carried out to determine the effect of fortifying grain amaranth based diets with lysine, methionine, casein and ethylene diamine tetra acetate (EDTA) on broiler performance, amino acid availability, plasma amino acid concentrations and nitrogen and mineral retention. In Trial 1, lysine, lysine plus methionine and casein were separately included in six diets containing either 400 g/kg raw or 600 g/kg extruded amaranth. Additionally, one 400 g/kg raw and one 600 g/kg extruded amaranth diets were not fortified. The eight diets were compared to a maize-soyabean meal diet as the control. Chicks on the 600 g/kg extruded amaranth diet with casein gave similar body weights at 31 days of age to those on the control diet. Feed intake and nitrogen retention were similar in the control and the extruded amaranth diets. The availability of amino acids was the highest in the chicks on the control diet. The lack of response to lysine, or lysine and methionine inclusions indicated that these amino acids were not limiting to growth in amaranth diets. In Trial 2, three diets contained 400 g/kg raw amaranth, and another three, 400 g/kg extruded amaranth. Two diets in each group were fortified with either disodium EDTA or casein, while the third was unfortified. Casein inclusion resulted in higher body weights at 31 days of age, but did not affect the plasma concentration of essential amino acids. Dietary EDTA did not enhance mineral retention in the body or the concentration of minerals in plasma. It was evident from both trials that the fortification of amaranth diets with casein improved chick performance and the availability of some amino acids.

Effect of Milk Powder Supplementation on Growth Performance of Broilers

“…Moreover, the results of this study disagree with the results found by Kabuage et al (2002) whom found that the addition of casein (milk protein) to the diets fed to broilers did not affect the feed conversion rations. Casein generally increased the amino acid concentrations such as methionine and isoleucine of the diets which might have enhanced their utilization.…”

“…The chemical composition of milk replacer is 20-24% protein, 15-20% fat, and less than 0.1% fiber (Moran, 2012). Milk powder contains a special type of proteins named casein which was used as a source of protein supplement in broilers feed (Kabuage et al, 2002).…”

Amaranthus Cruentus L. As a Food Alternative in Laying Hens to Reduce Cholesterol in Eggs

“…After harvest, seeds were processed in a hammer mill (Wetmore, Madison, Wisconsin, USA) until apt for inclusion in hen feed. Amaranth was thermally treated in a vertical autoclave (AESA, model CV-250, Mexico City, Mexico), for 45 min at 110°C and 0.5 atmospheres (atm) in order to eliminate the anti-trypsinogen content (Waldroup and Tillman, 1986;Kabuage et al, 2002, Peiretti 2018. The elimination of the anti-trypsinogen content was necessary for the inclusion of amaranth in hen feed.…”

Evaluación de varias fuentes de proteína vegetal en dietas para camarón Litopenaeus vannamei

“…El grano de amaranto tiene un contenido de energía similar a la de los granos de cereales y alrededor del doble de la cantidad proteica, con una composición aminoácidica superior (Tabla 10). El grano sirve como un sustituto adecuado por el grano de maíz en alimento para aves y puede reemplazar parcialmente los costosos ingredientes proteicos de animales (Kabuage et al, 1996). Un estudio llevado a cabo para determinar el efecto de dietas de granos de amaranto pelletizados a vapor con y sin melaza, demostró que los pollos alimentados con dietas que contenían 20% fueron más pesados que aquellos con 40% de inclusión.…”

“…Un estudio llevado a cabo para determinar el efecto de dietas de granos de amaranto pelletizados a vapor con y sin melaza, demostró que los pollos alimentados con dietas que contenían 20% fueron más pesados que aquellos con 40% de inclusión. El pelletizado mejoró el peso corporal, la ingesta de alimento y la eficiencia alimenticia, mientras que la inclusión de la melaza no fue efectiva en estimular la ingesta de alimento (Kabuage et al, 1996). La utilización del grano mejoró con la edad de las aves, demostrando que el grano de amaranto crudo podía ser más adecuado como un ingrediente en las dietas finales de pollos para engorde.…”