آمار
| تعداد نشریات | 14 |
| تعداد شمارهها | 682 |
| تعداد مقالات | 7,081 |
| تعداد مشاهده مقاله | 10,987,440 |
| تعداد دریافت فایل اصل مقاله | 10,057,306 |
Changes in External Egg Traits of Chickens during Pre- and Post-Molting Periods | ||
| Poultry Science Journal | ||
| مقاله 3، دوره 5، شماره 2، دی 2017، صفحه 91-95 اصل مقاله (351.45 K) | ||
| نوع مقاله: Original Paper | ||
| شناسه دیجیتال (DOI): 10.22069/psj.2017.12373.1234 | ||
| نویسندگان | ||
| SR Aziz1؛ A Shaker* 1؛ SMS Kirkuki2 | ||
| 1Animal production Department, Agricultural Research Center, Ministry of Agriculture and Water Recourses, Sulaimani, Iraq | ||
| 2Animal Production Department, Faculty of Agricultural Sciences, Sulaimani University, Sulaimani, Iraq | ||
| چکیده | ||
| 481 fresh fertilized eggs of three Kurdish local chickens (Black with brown neck, White with shank feathering, and White with non-feathering shank) were collected at pre-molting (355 eggs) and post-molting (126 eggs) stages to evaluate external egg traits. A venine caliper was used to determine the length and breadth of eggs to calculate Shape index. Results indicated that egg weight increased in all genetic groups (p < 0.05) at post-molting stage compared with pre-molting stage. There was a significant difference in egg length between pre- and post-molting periods from the black chicken with brown neck and white chicken with shank feather, but not from the white chicken with non-feathering shank. Also, egg breadth was similar between pre- and post-molting periods from black with brown neck and white with shank feather, but was different from white with non-feathering shank. Shape index was also similar between pre- and post-molting periods for white with shank feather, but were significantly different (P < 0.05) for black with brown neck and white with non-feathering shank. The results of this study indicate that egg external traits improved during post-molting period than pre-molting, and variations between egg layers for external traits could be due to the genetic makeup. | ||
| کلیدواژهها | ||
| Local chicken؛ Natural molting؛ Egg external trait | ||
| مراجع | ||
|
Ahmad Z, Sahota AW, Akram M, Khalique A, Shafique M, Mehmood S, Usman M, Mustafa G & Khan MS. 2014a. Pre and post-moult egg geometry during three different ages in four varieties of indigenous Aseel chicken. The Journal of Animal and Plant Sciences, 24: 1613-1617.
Ahmad Z, Sahota AW, Akram M, Khalique A, Jatoi AS, Shafique M, Usman M & Khan U. 2014b. Pre and post-moult productive efficiency in four varieties of indigenous Aseel chicken during different production cycles. The Journal of Animal and Plant Sciences, 24: 1276-1282. Ahmad N., Akram Zia-ur-Rehman M., Shah TH & Yousaf M. 1995. Effect of new molting programme on productive oerformance of spent layers under indigenous conditions. Pakistan Veterinary Journal, 15, 46-48. Akram M. 1998. Effect of induced moult on the subsequent second production cycle performance of commercial layers reared under various lighting and feeding regimes. PhD thesis, Dept. Poultry Husbandry, university of Agriculture, Faisalabad, Pakistan. Arafa AS, Harms RH, Miles RD, Christmas RB & Choi JH. 1982. Quality characteristics of aggs from different strains of hens as related to time of oviposition. Poultry Science, 61: 842-847. DOI: 10.3382/ps.0610842 Aygun A. 2013. Effects of force molting on eggshell colour, egg production and quality traits in laying hens. Revue de Médecine Vétérinaire, 164: 46-51. Bell DD & Weaver WD. 2002. Commercial chicken meat and egg production (5th Edition ed.). Springer. 1365 Pages. Berry WD. 2003. The physiology of induced molting. Poultry Science, 82: 971-980. DOI: 10.1093/ps/82.6.971 Brand VD, Parmentier HK & Kemp B. 2004. Effects of housing system (outdoor vs cages) and age of laying hens on egg characteristics. British Poultry Science, 45: 745-752. Duncan, D. B. (1955). Multiple range and multiple F test. Biometrics, 11: 1-42. DOI: 10.2307/3001478 Günlü A, Kirikçi K, Çetin O & Garip M. 2003. Some external and internal quality characteristics of partridge (A. graeca) eggs. Food, Agriculture & Environment, 1: 197-199. KoelKebeck, KW & Anderson KE. 2007. Molting layers-Alternative methods and their effectiveness. Poultry Science, 86: 1260-1264. DOI: 10.1093/ps/86.6.1260 LaBrash LF & Scheideler SE. 2005. Farm feather condition score survey of commercial laying hens. Journal of Applied Poultry Research, 14: 740-744. DOI: 10.1093/japr/14.4.740 Monira KN, Salahuddin M & Miah G. 2003. Effect of breed and holding period on egg quality characteristics of chicken. International Journal of Poultry Science, 2: 261-263. Nakazawa M, Furuta K, Fuke T & Geshi H. 1970. Studies on the forced molting in layer, Effect of forced molting in autumn on the performance of the layer. Japanese Poultry Science, 7: 12-17. DOI: 0.2141/jpsa.7.12 North MO & Bell DD. 1990. Commercial chicken production manual (4th ed.). US: Springer. 913 Pages. Reddy PM, Reddy VR, Reddy, CV & Rao PSP. 1979. Egg weight, shape index and hatchability in Khaki Campbell duck egg. Indian Journal of Poultry Science, 14: 26-31. Rolon A, Buhr R & Cunningham D. 1993. Twenty-four-hour feed withdrawal and limited feeding as alternative methods for induction of molt in laying hens. Poultry Science, 72: 776-785. DOI: 10.3382/ps.0720776 Svihus B, Hetland H, Choct M & Sundby F. 2002. Passage rate through the anterior digestive tract of broiler chickens fed on diets with ground and whole wheat. British Poultry Science, 43: 662-668. DOI: 10.1080/0007166021000025037. | ||
|
آمار تعداد مشاهده مقاله: 1,756 تعداد دریافت فایل اصل مقاله: 2,053 |
||
سامانه مدیریت نشریات علمی. طراحی و پیاده سازی از سیناوب