<b>Fish by-product meal in diets for commercial laying hens

Abstract

ABSTRACT. This study aimed to evaluate the increasing levels (0, 1, 2, 3 e 4%) of fish by-product meal in diets for laying hens on performance, egg quality and economic analysis. A total of 16052-wk-old Dekalb White hens were distributed in a completely randomized design with five treatments and four replicates of eight birds each. The experiment lasted 84 days divided into four periods of 21 days. Estimates of fish byproduct meal levels were determined by polynomial regression. Differences (p < 0.05) were detected for all variables of performance, in egg weight, yolk and albumen percentage, yolk and albumen height, feed cost and production cost, in which the inclusion of fish by-product meal in the diets showed better results. It can be concluded that fish by-product meal can be used in diets for hens as alternative feed, with better results in egg production, feed conversion, egg weight, yolk-albumen ratio and a reduction in feed cost and production cost.Keywords: alternative feed, economic available, feed cost, lipid profile, performance. Farinha de resíduo de pescado em rações de poedeiras comerciais levesRESUMO. Objetivou-se com este estudo avaliar a inclusão de níveis crescentes (0, 1, 2 3 e 4%) de farinha de resíduo de pescado na dieta de poedeiras comerciais leves sobre o desempenho, qualidade do ovo e análise econômica. Foram utilizadas 160 poedeiras da linhagem Dekalb White com 52 semanas de idade. O experimento teve duração de 84 dias divididos em quatro períodos de 21 dias. O delineamento experimental foi o inteiramente casualizado com cinco tratamentos contendo quatro repetições de oito aves cada. As estimativas dos níveis de farinha de resíduo de pescado foram determinadas por meio de regressão polinomial. Foram observadas diferenças (p < 0,05) em todas as variáveis de desempenho, no peso do ovo, percentagem de gema e albúmen, altura de gema e albúmen, custo alimentar e custo de produção, onde a inclusão de farinha do resíduo de pescado proporcionou melhores resultados. Concluiu-se que a farinha de resíduo de pescado pode ser utilizada como alimento alternativo em rações para poedeiras comerciais leves, proporcionando melhora na produção de ovos, conversão alimentar, peso do ovo, relação gema-albúmen, redução no custo alimentar e no custo de produção.Palavras-chave: alimento alternativo, custo, desempenho, perfil lipídico, viabilidade econômica.

Evaluation of chemical silage on egg quality parameters in ISA Brown line laying hens (Gallus Gallus Domesticus)

“…Likewise, it is the first physical protection barrier against mechanical damage (Nys & Guyot 2011). This variable did not present significant statistically differences (P < 0,05) between the two study groups, indicating that the substitution of protein raw materials by silage from red tilapia viscera did not cause any effect on the thickness of the shell, coinciding with what was reported by Silva et al (2017), who did not find significant differences in this variable. In their study, they replace soybean cake with fish waste meal in a proportion of 1 to 4%.…”

Nutrition value of dominant three fishes of Sudanese red sea coast

“…These are ground, cooked, processed and converted to fishmeal a high protein feedstuff. Feeding experiments were conducted to assess the feeding value of fishmeal in broiler and for use in animal feeds ( [33,34,15,14,8,21] . Fish meal is of value in promoting aquaculture yield (Miles and Chapman, 2005) [16] .…”