Mohammad Reza Rostami Khanghahi1, Mohammad Ali Jafari *1, Kaveh Jafari Khorshid31, Shahabuddin Gharevaisi1
1- Islamic Azad University, Qaemshahr Branch
Abstract: (170 Views)
Background: The use of plant-based additives has attracted the attention of all researchers due to the adverse effects of antibiotics on the body and antibiotic resistance in poultry, as well as the desire of people to consume feeds free of chemical drug residues. Adding fats and oils to the diet of broilers is a practical method to increase the energy density of diets. For this purpose, vegetable fats such as soybean oil are usually used. Unfortunately, vegetable fats are rich in polyunsaturated fatty acids, which are very sensitive to the oxidation process. For this purpose, adding antioxidants to the diet can reduce the balance of oxidation production and improve bird performance and meat quality. The active ingredients of this plant prevent the oxidation of organic substances in the body and reduce free radicals. The antioxidant properties of cinnamon are due to the presence of the compounds eugenol, caryylene, cineole and cinnamaldehyde. Recent research has shown that the use of cinnamon extract in the nutrition of broiler chickens can help improve their performance and health.Therefore, considering the antioxidant role of plant extracts in improving diet characteristics and growth performance in poultry, the aim of the present study was to investigate the effect of cinnamon and turmeric extracts along with diets containing peroxide oils on performance, carcass characteristics, some blood parameters, and nutrient digestibility in broiler chickens.
Methods: This study was conducted in order to investigate the effect of cinnamon and turmeric extract along with diet containing peroxide oils on performance, carcass characteristics, and some blood parameters and nutrients digestibility in broiler chickens. This study was conducted in the form of a completely randomized design using 250 day-old broiler chickens (mixed male and female) of Ross 308 strain in 5 groups (treatments), each treatment having 5 cages and 10 birds in each cage for 42 days. Experimental treatments include: 1- control group (diet containing oil with natural peroxide value (less than 5 mEq/kg), 2- positive control treatment (diet containing oil with high peroxide value (20 mEq/kg), 3- treatment containing cinnamon extract (150 mg/kg) along with diet with high peroxide oil (20 mEq/kg), 4- treatment containing turmeric extract (150 mg/kg) along with diet with high peroxide oil (20 mEq/kg) kg) and 5- treatment containing cinnamon extract (150 mg /kg) and turmeric extract (150 mg / kg) along with diet containing oil with high peroxide value (20 mEq/kg). Samples of dietary soybean oil were heated to 95°C and peroxide value was measured regularly using the AOCS (2003) recommended method. Experimental diets were formulated based on the commercial strain Ross 308 (2020) recommendation using UFFDA software, adjusted in three periods: starter (1-10 days of age), grower (11-24 days of age), and finisher (25-42 days of age). At the end of the experimental period, one male bird was selected from each replicate and after at least eight hours of starvation, they were killed and their carcasses were dissected. In order to measure the digestibility of nutrients, a chromic oxide marker was added to the diet as a marker and digestibility was measured for three consecutive days from the age of 19 to 21 days. The data were analyzed using the Mixed Models procedure of SAS statistical software version 1.9 (SAS, 2001) using 250 one-day-old broiler chicks (mixed male and female) of the Ross 308 strain.
Results: The results of feed consumption showed that the difference no significance was observed between the experimental treatments. The results of body weight gain showed that there was a significant difference between the experimental treatments in the grower period, the final and the total period (p<0.05). In the grower period, the greatest increase in body weight was in the treatment containing cinnamon extracts and turmeric with oil was observed. In the final period and the total period, there was the highest increase in body weight in the control treatment (p<0.05). The results of feed conversion ratio showed that no significant difference was observed between experimental treatments. The results of the carcass characteristics showed that there was a significant difference between the experimental treatments in the live weight, breast and liver (p<0.05). The highest live weight and breast percentage were observed in the control treatment. Also, the highest percentage of liver was observed in the treatment containing oil with high peroxide. The results of some blood parameters showed that there was a significant difference between the experimental treatments in the concentration of glucose, cholesterol, triglyceride, uric acid, HDL, aminotransferase and alkaline phosphatase (p<0.05). The results of nutrient digestibility showed that there was a significant difference between the experimental treatments in the digestibility of dry matter and crude protein (p<0.05). The highest digestibility of dry matter and crude protein was observed in the treatment containing cinnamon and turmeric extracts along with oil.
Conclusion: The general result of this research showed that adding cinnamon and turmeric extracts along with oil improved weight gain and digestibility of nutrients. Also, the combination of medicinal plants with oil did not improve feed consumption, feed conversion ratio and carcass characteristics.
Methods: This study was conducted in order to investigate the effect of cinnamon and turmeric extract along with diet containing peroxide oils on performance, carcass characteristics, and some blood parameters and nutrients digestibility in broiler chickens. This study was conducted in the form of a completely randomized design using 250 day-old broiler chickens (mixed male and female) of Ross 308 strain in 5 groups (treatments), each treatment having 5 cages and 10 birds in each cage for 42 days. Experimental treatments include: 1- control group (diet containing oil with natural peroxide value (less than 5 mEq/kg), 2- positive control treatment (diet containing oil with high peroxide value (20 mEq/kg), 3- treatment containing cinnamon extract (150 mg/kg) along with diet with high peroxide oil (20 mEq/kg), 4- treatment containing turmeric extract (150 mg/kg) along with diet with high peroxide oil (20 mEq/kg) kg) and 5- treatment containing cinnamon extract (150 mg /kg) and turmeric extract (150 mg / kg) along with diet containing oil with high peroxide value (20 mEq/kg). Samples of dietary soybean oil were heated to 95°C and peroxide value was measured regularly using the AOCS (2003) recommended method. Experimental diets were formulated based on the commercial strain Ross 308 (2020) recommendation using UFFDA software, adjusted in three periods: starter (1-10 days of age), grower (11-24 days of age), and finisher (25-42 days of age). At the end of the experimental period, one male bird was selected from each replicate and after at least eight hours of starvation, they were killed and their carcasses were dissected. In order to measure the digestibility of nutrients, a chromic oxide marker was added to the diet as a marker and digestibility was measured for three consecutive days from the age of 19 to 21 days. The data were analyzed using the Mixed Models procedure of SAS statistical software version 1.9 (SAS, 2001) using 250 one-day-old broiler chicks (mixed male and female) of the Ross 308 strain.
Results: The results of feed consumption showed that the difference no significance was observed between the experimental treatments. The results of body weight gain showed that there was a significant difference between the experimental treatments in the grower period, the final and the total period (p<0.05). In the grower period, the greatest increase in body weight was in the treatment containing cinnamon extracts and turmeric with oil was observed. In the final period and the total period, there was the highest increase in body weight in the control treatment (p<0.05). The results of feed conversion ratio showed that no significant difference was observed between experimental treatments. The results of the carcass characteristics showed that there was a significant difference between the experimental treatments in the live weight, breast and liver (p<0.05). The highest live weight and breast percentage were observed in the control treatment. Also, the highest percentage of liver was observed in the treatment containing oil with high peroxide. The results of some blood parameters showed that there was a significant difference between the experimental treatments in the concentration of glucose, cholesterol, triglyceride, uric acid, HDL, aminotransferase and alkaline phosphatase (p<0.05). The results of nutrient digestibility showed that there was a significant difference between the experimental treatments in the digestibility of dry matter and crude protein (p<0.05). The highest digestibility of dry matter and crude protein was observed in the treatment containing cinnamon and turmeric extracts along with oil.
Conclusion: The general result of this research showed that adding cinnamon and turmeric extracts along with oil improved weight gain and digestibility of nutrients. Also, the combination of medicinal plants with oil did not improve feed consumption, feed conversion ratio and carcass characteristics.
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