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Effect of Crude Soybean Oil Sediment as a Substitute for Refined Soybean Oil in Broiler Diet

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

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

Abstract/ Executive Summary:

In order to find out the effect of using crude soybean oil sediment (CSOS) as a substitute of refined soybean oil (RSO) in broiler diet, 450 day old unsexed broiler chicks were used in a 35-day trial at the Chittagong veterinary and animal sciences university(CVASU) farm. The experiment was laid out in completely randomized design. The chicks were randomly distributed in three treatment groups having three replications per treatment. Each replication had 50 birds. The house was divided by wire net into nine compartments to maintain desired replication. Birds were fed three types of diet i.e. diet without CSOS and RSO (T₀ ), diet containing RSO (T₁ ) and diet containing CSOS (T₂ ). All birds had free access to ad libitum feeding. Results indicated that no variations (P<0.05) were observed in weight gain of birds for the 1^st and 2^nd week except at 3^rd, 4^th and 5^th week irrespective of dietary treatments. At 5^th week, average weight gain was maximum (73.7±2.1 g/d) in birds fed diet containing RSO (T₁ ) and minimum (65.6±2.7 g/d) in birds fed diet without CSOS and RSO (T₀ ). Similar to weight gain, average feed intake differed (P<0.01) and the mean values were 55.3 ± 2.1, 50.5 ± 1.9 and 53.4 ± 2.0 g at 2^nd week, 92.5 ± 3.1, 83.4 ± 2.3 and 84.4 ± 2.2 g at 3^rd week and 116.4 ± 2.3, 114.5 ± 1.9 and 120.4 ± 2.7 g at the 4^th week for T₀, T₁ and T₂ treatment groups, respectively. Feed conversion ratio (FCR) differed (P<0.05) only at 5^th week and the mean values were 2.03 ± 0.12, 1.80 ± 0.11 and 1.90 ± 0.09 for T₀ , T₁ and T₂ treatment groups, respectively. Best feed FCR (1.80±0.11) was found in birds fed diet containing RSO (T₁ ) and comparatively poor FCR (2.03±0.12) was found in birds fed diet without CSOS and RSO (T₀ ). It could therefore be inferred that, RSO may be replaced by CSOS in broiler diet.

Keywords: Broiler, Crude soybean oil sediment, Feed conversion ratio, Intake, Weight gain, Refined soybean oil

Location: Chittagong veterinary and animal sciences university

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Chicken

Objectives:

To find out the efficiacy of using crude soybean oil sediment (CSOS) as a substitute of refined soybean oil (RSO) in broiler diet.

Methodology:

Four hundred fifty day old, unsexed, commercial broiler chicks were purchased from the chicken hatchery for the study purpose. A bamboo house (30×15×9 cft) was constructed for rearing broiler. The house was covered with corrugated sheet. 1.5 feet of the sidewall from floor was made of bamboo and the remaining portion was made of wire net to facilitate proper ventilation. The floor of the house was made of bamboo splits. The house was divided by wire net into nine compartments to maintain desired replication. Birds were brooded under single-tired electric brooder at 95 °F, 90 °F, 85 °F and 80 °F for the 1^st, 2^nd, 3^rd and 4^th week respectively. Room temperature and humidity were maintained using 200 watt incandescent lamps and exhaust fans. Experimental diets were dry mash type. Birds had unrestricted access to feed and water by plastic hanging feeder and bell type drinker. All diets were prepared with maize, rice polish, soybean oil, soybean meal, protein concentrate and other trace nutrients. Three rations designated as T₀, T₁ and T₂ were formulated using locally available ingredients where T₀ was fortified without CSOS and RSO, T₁ with RSO and T₂ with CSOS. ME value in CSOS was estimated as per. Theses rations were supplied to three groups of birds randomly. The chemical composition of the CSOS and RSO are given. Detailed proportion of the feed ingredients in different rations is given. Nutrient density in the experimental diet was maintained.The experiment was carried out following completely randomized design. The birds were vaccinated against New Castle and Gumboro disease on the 4^th and 10^th day followed by a booster dose on 20^th and 25^th day. Feed intake and mortality of chicks under different treatments and replications were recorded daily. Mortality rate of broiler chicks in treatment T₀, T₁ and T₂ were 4.5%, 2.5% and 3.0% respectively. No outbreak of infectious diseases were found throughout the whole experimental period. Birds were weighed and randomly divided into three treatment groups. Each treatment was divided into three replicates having 50 birds per replicate. Data related to weight gain, feed intake and FCR were analyzed for ANOVA by using Stata and SPSS. Means showing significant differences were compared by Duncan’s new multiple range test. Cost benefit analysis were carried out by using chi-square (X² ) test. Statistical significance was accepted at P<0.05.

Source of Information: Iranian Journal of Applied Animal Science (2014) 4(3), 535-540

Article Link (Online Journal): http://www.scopemed.org/fulltextpdf.php?mno=169513

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It could be concluded that sources of fats and oils had a significant effect on feed intake of broiler. A combination of vegetable oil with other fat sources had a marked beneficial effect because of synergistic effect for combining fatty acids which enhanced their intestinal absorption.Comparatively better feed conversion ratio (1.80±0.11) was found in birds fed diet containing RSO (T₁) and comparatively poor feed conversion ratio (2.03±0.12) was found in birds fed diet without CSOS and RSO (T₀).

Knowledge Management: Journal