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Effects of Different Oils on Productive Performance of Broiler

G.B. Das
Department of Animal Science and Nutrition, Faculty of Veterinary Medicine, Chittagong Veterinary and Animal Science University, Khulshi, Chittagong ? 4225, Bangladesh.

M.E. Hossain
Department of Animal Science and Nutrition, Faculty of Veterinary Medicine, Chittagong Veterinary and Animal Science University, Khulshi, Chittagong ? 4225, Bangladesh.

M.A. Akbar
Department of Animal Nutrition, Faculty of Animal Husbandry, Bangladesh Agricultural University, Mymensingh, Bangladesh.

Abstract/ Executive Summary:

A trial was conducted at the Chittagong Veterinary and Animal Sciences University Poultry Farm with 600 one-day old unsexed broiler chicks in a 42 d to find out the effects of different oils on productive performance of broilers. The chicks were randomly distributed following a completely randomized design in four treatment groups having three replications per treatment. Each treatment had 150 birds, with 50 birds per replicate. Four diets were formulated using locally available ingredients as diet without oil, or diets containing 2.5% soybean oil, 2.5% palm oil and 2.5% fish oil. Results indicated that supplementation of diets with different types of oil significantly (P<0.05) improved live weight gain and feed consumption of broilers from the 3^rd to the 5^th wk. However, supplementation caused no significant (P>0.05) impact on feed conversion of broilers during 1-5 wk. Feed conversion improved (P<0.05) only during the 6^th wk. Out of all carcass parameters, only feather weight, dressed weight, digestive tract weight and head weight differed (P<0.05) at the 4^th wk. The survivability of broilers fed with different types of oil was similar. It could, therefore, be inferred that the inclusion of soybean oil, palm oil and fish oil had a positive impact on weight gain, feed consumption and feed conversion in commercial broilers.

Keywords: Broiler, Feed, Oil supplementation, Performance, Weight gain

Location: Chittagong Veterinary and Animal Sciences University.

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Chicken

Objectives:

To determine the effect of supplementing different oils in regulating the production performance of broilers.

Methodology:

Six hundred day-one-old unsexed broiler chicks were used in a 42 d trial at the Chittagong Veterinary and Animal Sciences University Poultry Farm to carry out this experiment. The experiment was conducted following a completely randomized design (CRD). The broilers were randomly distributed in four treatment groups having three replications per treatment. Each replication had 50 broilers. The experiment was in a well-ventilated poultry shed (floor size 914×7621×604 cm 3 ) that was divided into 12 wire-netted pens and had a concrete floor. Floor space for each broiler was 941 square cm. The shed was hygienically cleaned for the experiment. Four diets were formulated using locally available ingredients and designated as T₀ (without oil), T₁ (2.5% soybean oil), T₂ (2.5% palm oil) and T₃ (2.5% fish oil). All diets were isonitrogenous; however, diets T₁, T₂ and T₃ were iso-energetic, while T₀ was slightly lower in energy, as that group was without oil. The broilers were provided with dry mash feed throughout the experimental period. Feed and fresh clean water were supplied ad libitum to the broilers. The broilers were brooded in their respective pens at a temperature of 32-35 ºC. The broilers were ex- posed to continuous lighting. Fresh dry rice husk was used as litter material at a depth of 4.5 cm. At 15-day intervals old litter material was removed from the pen and new litter was replaced. Feed intake, weight gain and feed efficiency were measured weekly. The broilers were vaccinated against Newcastle and Gumboro diseases as per schedule. At the end of 4^th , 5^th and 6^th wk of the experiment one broiler from each replication weighing close to the average of the pen was selected and slaughtered for processing. Feeders and drinkers were withdrawn from the pens 12 hours prior to slaughtering to empty the digestive system with less chance of damaging the intestines and contaminating the carcass with fecal material. After bleeding, the slaughtered broilers were immersed in hot water at 50 ºC for 120 seconds in order to loosen the feathers of the carcasses. After bleeding and removing feathers from the broilers, they were subjected to dissection following the method. The data were analyzed for analysis of variance in a CRD using SPSS and Stata.Means showing significant differences were compared by Duncan’s New Multiple Range Test. Statistical significance was accepted at P < 0.05.

Source of Information: Iranian Journal of Applied Animal Science (2014) 4(1), 111-116

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

During the early life of broilers (1-2 wk), supplementation of oil had no effect on live weight gain, feed consumption and feed conversion(FC). At the 6^th wk of age, supplementation of soybean oil, palm oil and fish oil substantially increased weight gain and feed consumption and decreased FC compared to those fed no added oil. Supplementation of oil resulted in higher dressed weight, breast meat weight and skin weight but lower drumstick weight compared to those without added oil at 5 wk.

Knowledge Management: Journal