Abstract
ABSTRACT Vegetable oils (VO) and animal fats are conventional lipid sources used in feed formulations. Frying fats (FF) and calcium soaps of palm oil (CaSPO) are low-cost lipid sources. This study evaluated the productive performance of broiler chickens fed diets with CaSPO in substitution for VO or FF. Two hundred, 1-day old male broiler chickens were allocated in a randomized design with factorial arrangement (22). Diets included 2 lipid sources (FF and VO) and 2 CaSPO levels (0 and 50%). The study had two phases (starter and finisher) of 21 days each. For the starter phase there was no effect (p>0.05) of dietary treatments on the chickens’ productive performance. For the finisher phase birds fed diets with FF had higher feed intake and feed conversion ratio (main effect; p 0.05) on the productive performance of broiler chickens. There was no influence of treatment on carcass yield. The drumsticks plus thighs were higher (main effect; p 0.05). These results may indicate that VO is superior to FF and CaSPO may substitute for VO or FF without affecting productive performance of broiler chickens. Lipid source showed small influence on carcass characteristics.
Highlights
In 2018, the poultry industry in Mexico represented 63.3% of all animal production; within poultry, 34.9% were broiler chickens
Ali et al (2020) found reduced productive performance of broiler chickens fed diets with thermally oxidized palm oil when compared with broiler chickens receiving fresh palm oil in the diet
Dorra et al (2014) and Orduña-Hernández et al (2016) observed similar productive performance in broiler chickens fed diets with Frying fat (FF) or Vegetable oil (VO), attributing this response to the low levels of free fatty acids in the FF that they used
Summary
In 2018, the poultry industry in Mexico represented 63.3% of all animal production; within poultry, 34.9% were broiler chickens. In Mexico, per capita consumption in 2018 was 23 kg of broiler chicken meat (UNA, 2018). Broiler chicken productive performance is improved with different energy-rich ingredients in the diet. Lipids with high energy density are included in the diet to cover the requirements needed by highly productive broiler chickens. Vegetable oils and a blend of both are the most common sources of lipids used in poultry diets. Vegetable oils with higher concentration of linoleic and linolenic essential fatty acids have improved growth in broiler chickens (Itzá-Ortiz et al, 2008). The main animal fat used in animal feed is beef tallow, which is obtained during meat processing for human consumption; it has a high melting eRBCA-2019-1310
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