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Estimations of some methods to induce heat stress on some productive performance of broiler | ||
| Jornal of Al-Muthanna for Agricultural Sciences | ||
| Article 1, Volume 4, Issue 1, 2016, Pages 1-17 | ||
| Abstract | ||
| Summary This experiment was carried out at the poultry field of animal resource department, college of agriculture, university of Basrah May1st, to4-6 July, 2014. The objective of this experiment was to evaluate may treatments as a method to decrease the influence of heat stress on the productive performance and some blood physiological characteristics of broiler, a total of 216 un sexed one day old chicks of Ross breed at hatchability old were used in this experiment, chicks were randomly distributed into six treatments (three replicates, each of 12 birds) for each treatment. The treatments were as follows: 1. First treatment (T1); the control group without any supplement. 2. Second treatment (T2); supplement 1.5 ml of prebiotic per 1 liter of water for each chick and ad libitum feeding. 3. Third treatment (T3); supplement 500 mg of vitaminC per 1 liter of water for each chick and ad lbilum feeding . 4. Fourth treatment (T4); supplement 200 mg of vitamin E per 1 liter of water for each chick and ad lbitum feeding . 5. Fifth treatment (T5); supplement 600 mg of potassium chloride (kcl) per 1 liter of water for each chick and ad libitum feeding . 6. Sixth treatment (T6); fasting for 24 hours and follow up with ad lab tium feeding for24th hours The results can be summarized as follows; 1. There was insignificantly(P<0.05) effect of treatments of heat- stress decrease on some productive and traits of broiler all treatments proceeded significantly (P<0.05) compared to the control group in most of productive traits. 2. There was a significantly increase in body weight, weekly weight gain, feed intake and feed conversion ratio of vitamin c adding treatment in comparison with other treatment of the experiments. 3-There was high significant increase (p<0.05) on mortality of the control treatment, the lowest mean recorded on the treatment use of fastingFor24 th hours and follow with ad labtium feeding. | ||
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