Effect of lipid sources and inclusion levels in diets for broiler chickens

Abstract

This research aimed to evaluate the interactions and effects of 2 and 4% addition levels of poultry slaughterhouse fat (chicken tallow) and soybean oil in diets for broiler chickens. Two experiments were carried out using one-day-old male Cobb chicks in an entirely random design with a 2x2 factorial scheme. In the first experiment, 560 chicks were used to evaluate performance and carcass characteristics. In the second experiment, 100 chicks were used to determine the nutrient digestibility, dietary energy utilization and the lipase and amylase pancreatic activity. There was no interaction between the fat sources and the addition levels for any of the analyzed variables, except for the digestibility coefficient of dry matter (DCDM), which was higher in diets added with 2% soybean oil when compared to chicken tallow. The addition of 4% fat in the diet, regardless of fat source, improved the digestibility coefficient of ethereal extract (DCEE) and increased weight gain and feed intake. Moreover, in the initial phase, the addition of 4% fat to the diet increased lipase activity when compared to diets with 2% addition, and a positive correlation between DCEE and pancreatic lipase activity was observed. In conclusion, there is no interaction between fat sources and addition levels, except for DCDM. Carcass characteristics are not influenced by any of the studied factors. The addition of 4% fat increases pancreatic lipase activity and improves DCEE, resulting in greater weight gain, regardless of the tested fat source, making chicken tallow a great alternative to soybean oil.

Impact of Dietary Supplementation of Flaxseed Meal on Intestinal Morphology, Specific Enzymatic Activity, and Cecal Microbiome in Broiler Chickens

“…This lack of variation in the lipase activity in group E could be the reason for the lack of weight gain. Our results are different from those reported by Polycarpo et al [65], who used soy oil as a source of PUFAs.…”

Effect of Different Fat Sources and Energy Levels on Growth Performance, Nutrient Digestibility and Meat Quality in Broiler Chicks

“…This is due to that canola and poultry oil had lower adulteration and higher caloric value unlike fish oil which had higher value of FFA and POV value and lower digestibility. Results are in line with the outcome of Polycarpo et al (2014) who observed that vegetable oil like soybean oil in broiler diet resulted in greater digestibility coefficient of nitrogen in broiler birds than those fed chicken tallow. Apparent digestibility coefficient of fat in birds fed soybean oil was higher than those received tallow oil (Tancharoenrat et al, 2014).…”

“…Broiler birds fed diet containing soybean oil had higher WG and better FCR than those fed poultry fat and tallow oil (Zhang et al, 2011). Contrarily, no effect of chicken tallow and soybean oil in broiler were observed on FI, WG and FCR (Polycarpo et al, 2014). Birds fed diet containing beef tallow and canola oil had similar WG, FI and FCR (Meng et al, 2004).…”

“…Addition of poultry fat and canola oil in broiler diet had lower gizzard weight and higher abdominal fat, while, breast yield, thigh yield and liver weight were no affected by oil sources (Shahryar et al, 2011). Different fat sources (chicken tallow and soybean oil) in broiler diet had similar effect on carcass yield; drumstick and chest yield (Polycarpo et al, 2014). Soybean oil and poultry fat in broiler diet had similar effect on carcass, breast and thigh yield (Neto et al, 2011).…”

Slaughter condition, safety and quality of slaughter products of turkeys of meat productivity in the use of prebiotic drug Аctigen

“…Проте в сучасній науковій літературі вітчизняними дослідниками не достатньо описані оцінка безпечності та якості м'яса індиків-бройлерів за реалізації на агропромислових ринках, різних підприємств України (Polycarpo et al, 2014;Yakubchak et al, 2016;Al-Khalaifah, 2018;Melekoglu et al, 2021).…”