Influence de l’huile de soja sur le poids et la taille des œufs des poules pondeuses « Warren »

Abstract

The quality of the laying feed is the most important element on which the physical and nutritional characteristics of eggs depend. The incorporation of vegetable oils in the diet of the layers gives this diet a supply of essential fatty acids such as linoleic acid. Soybean oil is a vegetable oil rich in polyunsaturated fatty acids and has a high concentration of linoleic acid, which is essential for proper egg laying function. Objective: This present work aims to evaluate the effects of soybean oil laying feed supplementation on the weight and size of eggs from Warren laying hens. Methodology and results: The experiment involved 150 Warren 20 weeks old (entry laying egg), divided into 3 lots of 50 hens each. Soybean oil was introduced into foods at a rate of 0% (Lot 1: Control), 2% (Lot 2) and 4% (Lot 3). The feed thus produced was daily distributed to the hens. The first data of the experiment were recorded after one month of laying (25th week). These data allowed to determine the weight and size of the collected eggs. After 7 months of experience, results showed that supplementation of 2% and 4% soybean oil improved respectively the weight to 2.49 g and 1.36 g. For the size of the eggs, the incorporation of 2% and 4% soybean oil gives similar values but higher than those of the control lot (0%). Conclusions and application of the results: Soybean oil is therefore seen as a mean for improving the yield of poultry production. An application of the use of this oil in poultry feed would be an asset for the poultry sector and will improve the income of producers.