جستجوی مقالات مرتبط با کلیدواژه « Poultry » در نشریات گروه « اکولوژی »

The current study was carried out on a poultry farm that belongs the Animal Production Department, College of Agriculture, University of Kufa, Iraq for a period from 10 September through 14 October 2020 in 5 weeks. In this study, we assessed the effects of adding antioxidant (ascorbic acid) and red ginseng root powder (Panax) in reducing the effects of heat stress. The experiment included 240 unsexed Ross-308 cross chicks, one-day old, with an average initial weight of 40 g. The chicks were divided into 4 treatments encompassing 60 chicks per treatment with three replications (each 20 chick). The treatments including control diet fed on standard ration (T1), diets with the added red ginseng root powder (Panax( at 2 g kg-1 feed (T2), 4 g kg-1 (T3) and  6 g kg-1 (T4). The chicks were fed on starter diet for the first 21 days and a final diet from 22nd to 35th days. The results showed that T4 were significantly (p < 0.05) superior to the control treatment by recording the highest average live body weight, total weight gain, and total feed consumption rate as well as the lowest value of feed conversion factor.

Poultry industries produce a lot of feathers which are considered as waste and needs to be managed properly. Poultry feathers are rich with keratin protein and therefore they could be a source for good nitrogen fertilizer. Proper treatment of poultry feather waste (PFW) might be an environmental friendly solid waste management tool and a good source of N-rich organic fertilizer. PFW was treated under a mixture of both aerobic and anaerobic processes. Treated poultry feather waste (TPFW) was analyzed for different nutrient elements. TPFW was applied to the soil at 4, 8, 12 and 16 t/ha along with control. Ipomoea aquatica was grown as the test plant to evaluate the growth performance under different rates of TPFW application. Plants were harvested 7 weeks after seed germination. TPFW contained higher amount of organic matter (35.9%) and total nitrogen (4%). Other major nutrient elements were found to be satisfactory. Color of the plants were observed greener in TPFW applied plants than control plants and the green color was pronounced with increasing rate of TPFW application. Plant height (cm/plant), leaf number per plant and weight of plants (g/plant) was also increased significantly due to the application of TPFW at 12 t/ha and above. Proper treatment of PFW might be an environmental friendly, cost effective and sustainable strategy for PFW management that will also play a vital role in nutrient (especially nitrogen) recycling to the soil.