Efecto de la adición de harina de zanahoria y melaza de caña sobre el desempeño productivo y económico y pigmentación de la canal de pollos de engorde.

Abstract

In meat-type poultry production, the well-being and acceptance of the consumer must be thought about, since they want healthy, fresh and yellow chicken carcasses. This research aimed to evaluate the productive, economic performance and pigmentation of the broiler chicken carcass using carrot flour and cane molasses. 96 broiler chickens with initial average age and weight of 20 days and 1227 g were used, distributed in a completely randomized design in 4 treatments and 24 repetitions. The treatments were: control (100% balanced feed), HZ1%+M1% (balanced feed + 1% carrot flour and 1% molasses), HZ3%+M3% (balanced feed + 3% carrot flour and 3% molasses); HZ5%+M5% (balanced food + 5% carrot flour and 5% molasses). A linear increase in total feed consumption will be observed with the increase in carrot flour. Balanced food consumption was similar between treatments. There was greater (P<0.05) initial body weight (EW), final body weight (FW), total weight gain (GPT), average daily gain (ADG), feed conversion (CA) and carcass pigmentation in the animals that received carrot flour and molasses compared to the control. However, feed efficiency (FE) was lower (P<0.05) in these animals. There was also a positive linear effect (P<0.05) on PCI, carcass yield (CR), and pigmentation (PI) with carrot flour and molasses addition levels. There was a quadratic effect on PCF, GPT, GMD, CA and channel yield, where the lowest value will be observed in the HZ3+M3 treatment. A greater production of carcass meat was verified for the HZ5+M5 treatment, resulting in greater total income from meat sales, although with higher total feed costs, which reduced the net income and the cost-benefit relationship. The treatment control presented the highest net income and benefit-cost ratio. In conclusion, the addition of carrot flour and molasses improves productive performance and carcass pigmentation, but 10 decreases economic profitability. The addition of 5% carrot flour and molasses provides maximum animal performance.