Effect of dietary lipid sources on production performance of broilers

Abstract

________________________________________________________________________________ AbstractA study was conducted to determine the influence of different dietary lipid sources and inclusion levels on production performance of male broilers. Eight isoenergetic (15.1 MJ AME/kg DM) and isonitrogenous (223 g CP/kg DM) diets were formulated, using high oleic sunflower oil (HO), sunflower oil (SO), fish oil (FO) and tallow (T) at a 30 g/kg and 60 g/kg dietary inclusion level. Eight hundred (800), dayold Ross 788 broiler males were randomly allocated to the eight treatments (n = 100) and were further subdivided into four replicates/treatment (n = 25). All birds receive a standard commercial diet for the first 14 days, where-after the experimental diets were fed for 28 days. Feed intake and body weights were recorded weekly, while mortalities were recorded and dead birds weighed daily. Mortalities were brought into consideration during the calculation of average daily feed intake (g feed/bird/day) and feed conversion ratio (g feed/g body weight gain). Contrary to saturated fatty acids (T), the inclusion of unsaturated fatty acids (HO, SO, FO) at a higher level (60 g/kg) resulted in a significantly improved FCR. It seems that the optimum dietary inclusion level of saturated fatty acids is lower (30 g/kg) than that of unsaturated sources.________________________________________________________________________________

Effect of different fat sources in parental diets on growth performance, villus morphology, digestive enzymes and colorectal microbiota in pigeon squabs

“…Numerous studies have reported that poultry, which received diets containing oil showed a better growth and laying performance (Joshi and Sell 1964;Bragg et al 1973;de Witt et al 2009). Moreover, in laying hens farming in China, 3-4% canola oil or soybean oil (SO) is commonly included in the daily feed.…”

Does dietary supplementation with lettuce seed oil enhance broiler performance, immunity, lipid profile, liver and kidney functions, antioxidant parameters, and intestinal microbiota?

“…Similar effect was reported by Jamorz et al (2005) who indicated no improvement in body weight by dietary plant extract of broiler. De Witt et al (2009) and Fébel et al (2008) pointed out that diet supplementation with different sources of oils were not affect significant on the growth of birds. In contrast, Mohammed and Razaaq (2020) observed that increased live body weight due to higher moisture content in lettuce leaves leads to increased weight gain.…”

Inclusion of Dietary Palm Oil and Soy Oil on Growth Performance and Nutrition Digestibility in Broiler Chickens

“…The inclusion of soybean oil had improved body weight gain and reduced FCR compared with tallow in chicken indicated by Zhang et al (2011). In addition, Febel et al (2008 and De Witt et al (2009) reported that dietary inclusion with soy oil had no beneficial effect on the FI and FCR of chicken.…”