Abstract
This study evaluated the effect of canola meal and oil in quail diet on productive performance, egg quality and bone characteristics. Quails (n = 84) with 150-days-of-age and average weight of 234±17 g were used in this experiment that lasted 84 days. The experiment consisted of a completely randomized design with 4 treatments, 7 replications with 3 birds each. Four diets were formulated: SM+SO - control diet with soybean meal and oil; MC+SO - 25% replacement of soybean meal with canola meal; MC+CO - 25% replacement of soybean meal with canola meal and complete replacement of canola oil with soybean oil; SM+OC - control diet with soybean meal and canola oil. Productive performance, internal and external egg quality and bone characteristics were evaluated. The diet with canola meal and oil (MC+CO) decreased (p <0.05) feed conversion. Albumen height was lower (p < 0.05) for treatments with canola meal and oil (MC+CO). Regardless of the oil used, the dietary canola meal (MC+SO and MC+CO) reduced the weight and length of tibia (p < 0.05), but increased its ash content (p < 0.05). The mixture of canola oil and meal decreases feed conversion, and negatively affects internal egg quality and bone characteristics of quails.
Highlights
World production of canola oil ranks second among industrialized products derived from oil plants (United States Department of Agriculture [USDA], 2011)
At the end of each production period, we evaluated the productive performance, internal and external egg quality
There was no effect (p > 0.05) on weight gain, feed intake and feed conversion per mass and per dozen eggs caused by the replacement of 25% soybean meal with canola meal (Table 2)
Summary
World production of canola oil ranks second among industrialized products derived from oil plants (United States Department of Agriculture [USDA], 2011). Industrial oil extraction generates canola meal as a by-product which can be purchased at low cost in the market. In some countries, such as Canada and the United States, its use is widespread in poultry production, mainly in feeding broilers. Animal Sciences and laying hens (Newkirk & Classen, 2002). Studies have shown that canola meal can replace partially (20-30%) soybean meal without affecting feed intake, production, size and quality of eggs (Ciurescu, 2009; Ismail, AlBusadah, & El-Bahr, 2013). At high levels in the diet, canola meal can cause liver hemorrhagic
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