Soybean Oil and Beef Tallow in Starter Broiler Diets

Abstract

The objective of this study was to determine the energy values of soybean oil (SBO) and tallow (T) combined in different ratios, and to evaluate their effects on the performance, body composition, and serum lipid levels of starter broilers. In experiment I, a digestibility trial was performed to determine the energy value of the SOB and T mixtures using 100 12 - to 21 -day-old broilers. In experiment II, 930 one-day-old broilers were used. Treatments consisted of the inclusion of 4% SBO and T inclusions at the following ratios: 0:100, 25:75, 50:50, 75:25, 100:0. Each treatment included six replicates. In experiment I, AME and AMEn linearly increased (P<0.01), as SBO participation in the mixture increased. In experiment II, the different lipid ratios quadratically influenced (P<0.01) body weight and weight gain at 21 days of age, increasing up to the ratio of 65.87:34.13. Serum lipids linearly decreased (P<0.05) as SOB inclusion in the diet increased. It was concluded that AME and AMEn of SBO and T at ratios of 0:100, 25:75, 50:50, 75:25, and 100:0 were 7.882 and 7.542, 8.384 and 8.076, 8.701 and 8.385, 8.801 and 8.727, and 9.478 and 9.271 kcal/kg, respectively. The best performance with no detrimental effect on carcass yield was obtained with the mixture of 75% SBO with 25% T. The highest dietary soybean oil level reduced serum lipid levels of 21-day-old broilers

Growth performance, carcass characteristics and blood metabolites of broiler chickens fed diets formulated on total or digestible amino acids basis with bovine bile salts powder and soybean oil

“…Total blood biochemical parameters were not affected by different inclusion rate of SO in present research, as observed by Fascina et al (2009) and Guerreiro et al (2011) who did not find any blood parameters differences between broilers fed vegetable oils. However, results of some studies do not agree with the findings of present experiment.…”

Evaluation of dietary fat sources on growth performance, excreta microbiology and noxious gas emissions in Ross broilers

“…The major PUFA content in FT1 is linoleic acid (C18:2n-6), while others group contained low to moderate amount. The feedstuffs dominated with unsaturated fatty acids are competent to improve the digestion process; where digestion process can be promoted by the secretion of bile and formation of micelle, consequently intensify the utilization of saturated fatty acids, and finally can impact on the performance augmentation of birds (Fascina et al, 2009). The effects of dietary fat on weight gain are influenced by the age of the birds and the amount of fat added to the diet (Zelenka et al, 1997).…”

Evaluation Ofhalal Tallow and Haram Lardcombinations on Growth Performance, Immunity, Cecalmicrobiology and Noxious Gas Emissionsin Boilers.

“…The presence of fatty acids represent important role in the secretion and function of bile and formation of micelle. Feedstuffs dominated in unsaturated fatty acids are influential in the improvement of the digestion process by increasing bile secretion for micelle formation, enhancement of the absorption of saturated fatty acids, benefiting the bird's performance (Fascina et al, 2009). Bile salts secreted from the liver and stored in gallbladder are released into the duodenum, where they coat and emulsify large fat droplets into smaller droplets, thus increasing the overall surface area of the fat, which allows the lipase to break apart the fat 2382 more effectively.…”

“…Supplementation of combination of vegetable and animal fat sources in case of broiler diet was reported beneficial on the aspects of improvement in the growth performance and carcass characteristics (Poorghasemi et al, 2013). Combination of tallow and soybean oil (25:75) was reported best on the aspect of performance without detrimental impact of carcass yield (Fascina et al, 2009). However, combination of different animal fats are beneficial or harmful, there is no detail research has been conducted yet.…”