Durmus I.,Poultry Research Station
Asian Journal of Animal and Veterinary Advances | Year: 2012
The study was conducted to identify the effects of the use of various disinfecting materials for disinfecting incubating eggs on the hatching results and total bacterial count. To this end, the disinfectants coded as A, B, C and D depending on their active ingredients. Disinfectants were compared according to their effects on the hatching results and total bacterial counts. No difference was found among groups with regard to hatchability, hatchability of fertile eggs, early, middle and late embryonic mortality, number of deformed chicks (p>0.05). As for the total bacterial count after the disinfection application, no significant difference was found among groups (p>0.05). © 2012 Academic Journals Inc.
Hamodi S.J.,University of Baghdad |
al-Khalani F.M.,Poultry Research Station
Advances in Environmental Biology | Year: 2011
Four hundred twenty unsexed broiler chicks Cobb were used to study the effect of two source of medicinal plants (Anise seed, A and Roselle flower, K) supplementation on productive performance, dressing percentages, internal organ weights, abdominal fat and bacteria count (E.coli and Staphylococci)in small intestine and colon. The broiler chicks Cobb were divided into three equal groups with four replicate (35 bird in each)fed three diets, Diet 1 (control group) contain none of the feed additives. Diet 2 and 3 (group 2 and 3) contain 6kg/Ton from A and K, respectively. The results revealed significantly (p <0.05)increases in live body weight, body weight gain, fedd consumption, feed conversion ratio, production index and significantly (p <0.05) reduction in mortality in A and K treatment groups as compared with control group. Dressing percentage, liver and heart weights supplement groups (A and K) were significantly (p <0.05) increased, while abdominal fat were significantly (p <0.05) reduced as compared with control group. However non significant differences(p>0.05) were shown across treatment groups in gizzard weight. The weights of primary carcass cuts (breast, thigh and drumstick) of supplemented groups (A and K) were significantly (p <0.05) increased and the secondary carcass cuts weights (neck, wings and back) were significantly (p <0.05) reduced as compared with control group. A count No. of harmful bacteria E. coli and Staphylococci in the small intestine and colon were significantly (p <0.05) decreased in supplemented groups as compared with those in control group. In conclusion, feed additives such as Anise and Roselle were improved the productive performance of broiler chicks through increasing dressing percentage and reduce abdominal fat and harmful bacteria count in small intestine and colon. Also Roselle were the best one than other medicinal plant Anise by improved the productive performance.
Durmus I.,Ordu University |
Goger H.,Poultry Research Station |
Demirtas S.,Poultry Research Station |
Yurtogullari S.,Poultry Research Station
Animal Production Science | Year: 2012
The study was carried out to identify some production traits of the pure Barred Rock 1 (BR1) line and rapid slow feathering line crosses derived from the BR1 pure line, in addition to F1 crosses of all these dam lines with Rhode Island Red 1 sire line. The BR1 line previously used a brown layer dam line for barred/non-barred day-old chick auto-sexing and synthetic slow and rapid wing feathering lines. Parent lines showed significant differences in sexual maturity and egg production (P < 0.01) and early embryonic mortality (P <0.05). However, there was no significant difference in weight at sexual maturity, average egg weight, hatchability of fertile eggs, hatchability of total eggs set, and middle and late embryonic mortalities. A significant difference was found among F1 crosses with respect to weight at sexual maturity (P < 0.05), but no significant difference (P > 0.05) could be determined for age at sexual maturity and egg production. Overall, rapid feathering hens had better production traits than slow feathering hens. The dual crossbred parent lines exhibited almost the same level of egg production traits compared with the pure line. © 2012 CSIRO.
Yenice E.,Poultry Research Station |
Mzrak C.,General Directorate of Agricultural Research and Policies |
Gultekin M.,Poultry Research Station |
Atik Z.,Poultry Research Station |
Tunca M.,Poultry Research Station
Biological Trace Element Research | Year: 2015
In the present study, the effects of dietary supplementation of organic and inorganic Mn, Zn, Cu, and Cr mixtures using two different levels (80, 60, 5, and 0.15 mg/kg and 40, 30, 2.5, and 0.07 mg/kg, respectively) on the bioavailability of these trace minerals and Ca in late-phase laying hens were evaluated. Three hundred and sixty laying hens (Barred Rock) at 50 weeks of age were used, and the duration of study was 16 weeks. Each of the four dietary regimes was randomly assigned to six replicates, which included 15 hens each. Organic trace minerals were provided as methionine chelates; inorganic Mn, Zn, and Cr were provided as oxides; and Cu was provided as sulfate. The organic form significantly increased the concentrations of serum Mn, Zn, Cu, and Ca; egg Mn, Zn, Cu, and Cr; and eggshell Zn and Cr compared with the inorganic form. However, the form of trace minerals did not affect the concentrations of serum Cr and eggshell Mn, Cu, and Ca. High-level addition of trace minerals significantly increased serum Mn and Zn; egg Mn, Zn, Cu, and Cr; and eggshell Mn, Zn, and Cu concentrations compared with low-level addition but did not affect serum Cu, Cr, and Ca or eggshell Cr and Ca concentrations. While the organic form reduced the excretion of Mn, Zn, Cu, Cr, and Ca, the high-level supplement increased Mn, Zn, and Cu excretion. The addition level did not affect Cr and Ca excretion. These results demonstrate that dietary supplementation of an organic Mn, Zn, Cu, and Cr mixture increases the bioavailability of Mn, Zn, Cu, Cr, and Ca compared with inorganic sources and that a lower level of trace mineral supplementation results in lower mineral excretion, particularly in an organic form. © 2015, Springer Science+Business Media New York.
Kamanli S.,Poultry Research Station |
Durmus I.,Ordu University |
Yalcin S.,Ege University |
Yildirim U.,Poultry Research Station |
Meral O.,Ankara University
Journal of Thermal Biology | Year: 2015
This study was designed to determine the effect of prenatal temperature conditioning on hatching and live performance of laying chickens, and response to heat and cold stress during laying period. A total of 3600 eggs obtained from ATAK-S brown parent stock were incubated at control (37.5°C, CONT-Inc), cyclic low (36.5°C/6h/d from 10 to 18d of incubation, LOW-Inc) or high (38.5°C/6h/d from 10-18d of incubation, HIGH-Inc) incubation temperatures. Hatched chicks per incubation temperature were reared under standard rearing conditions up to 26wk. From 27 to 30wk, hens from each incubation temperature were divided into 3 environmentally controlled rooms and reared at control (20±2°C, CONT-Room), low (12±2°C, COLDS) or high (32±2°C, HEATS) temperatures. Hatching performance, body weight, egg production, and plasma triiodothyronine (T3) and thyroxine (T4) levels and oxidant and antioxidant activities were evaluated.The highest hatchability was for LOW-Inc chicks while HIGH-Inc chick had similar hatchability to CONT-Inc. There was no effect of incubation temperatures on plasma MDA, GSH-Px, activities and T4 concentrations on day of hatch. LOW- Inc chicks had higher SOD activities and T3 concentrations compared to the other groups. Although chick weight was similar among incubation temperature groups, CONT-Inc chicks were heavier than those cyclic incubation temperature groups until 12wk of age. Incubation temperature had no effect on sexual maturity age and weight and egg production of laying hens. From 27 to 30wk, regardless of incubation temperature, HEATS hens lost weight from day 0 to 10, had the highest cloacal temperatures and lowest feed consumption and egg production while COLDS hens had the lowest cloacal temperatures. At day 5, T4 level was higher in LOW-Inc hens at COLDS but it was higher in HIGH-Inc hens at HEATS compared to CONT-Inc. These data may suggest a modification in thyroid activity of hens that were conditioned during the incubation period. Moreover under COLDS condition, SOD production of LOW-Inc hens was higher than those of CONT- and HIGH-Inc hens indicating an induction in antioxidant enzyme activity. Nonetheless, prenatal temperature conditioning of laying hen embryos had no advantage on laying performance of hens under temperature stress conditions. © 2015.