"Inclusión de semillas de chia(salvia hispanica L) y maíz morado (zea mays L) como alimentos antiadipogènicos en pollos parrilleros"

Abstract

Excess abdominal fat is a characteristic of modern lines of fattening birds, this causes loss of commercial value of the carcass and a waste of energy from food, therefore the inclusion of chia seeds (Salvia Hispana L.) (0% and 5% of the balanced feed) and purple maize (Zea Mays L.) (0%, 10% and 20%) in the balanced feed, through the productive behavior and effect antiadipogenic activity observed in 180 Cobb 500 four week old broiler chickens, with an average weight of 1554 ± 202.9 grams, randomly distributed in six treatments, with five replicates and six experimental units in each. We used the Totally Random Design (DCA) with factorial arrangement for the parameters food consumption and feed conversion (CA), final weight, carcass yield and antiadipogenic effect (abdominal fat deposition, ethereal extract (EE) in carcass weight and liver and heart weight) was assessed using the 3x2 Completely Randomized Block Design (DBCA), considering sex as a source of additional variation (blocks). Histological analysis of these organs was also performed. The production parameters were not affected by the inclusion of purple maize and chia seeds at different levels, although a reduction of abdominal fat deposition was observed when replacing yellow maize with purple maize, inclusion of chia seeds increased the proportion of tissue abdominal fat The EE in the canal tended to increase in face of a greater presence of purple corn in the food, while the chia seed had no influence on this parameter. Liver and heart weight were similar between treatments, however in histological analysis it reported fat change in the hepatic tissue of treatments birds that included purple corn, or to include chia seeds in the absence of purple corn Key words: purple corn, chia, abdominal fat, chicken broiler