Effect of broiler breeder's body weight after induced molting by zinc oxide on egg production, fertility, hatchability and chicks weight

Khasraw Abdulla Ali
Presidency of Halabja University - Halabja University


This study investigates the effect of different body weight of Arbor Acres broiler breeder
hens after molting on product performance. 296 hens, the birds were molted by zinc
oxide with or without supplementation of vitamin C and the body weight of the birds
after molting at 361 days old of age, were randomly divided into eight treatments (T‎) of
body weight: [T1(3.783), T2(3.714),T3( 3.458), T4(3.428), T5(3.380),T6( 3.318),
T7(3.276) and T8(3.253) ±50]. Weekly eggs/hen, hen day production and egg mass
revealed significant (p<0.05) differences between different body weights of hens. Hens
in molting significantly had higher values of these traits compared with non-molting
hens. Effect of body weight on Fertility percentage of eggs did not differ while
hatchability of fertile eggs and hatchability of total eggs affected by the different
treatments with the superiority of molting treatments on non-molting treatments. Results
show no significant effect of body weight on egg weight and chick’s weight.

Key Words:
Broiler breeder, Body weight, Induced Molting, Hatchability, Fertility


[1] Khoshoei, E.A. and Khajali, F. “Alternative induced moulting methods for continuous feed withdrawal and their influence on post-molt performance of laying hens”: International. Journal of Poultry Sciences, Vol. (3). pp. 47-50. (2006).

[2] Reddy, V. Malathi, V, Venkatarami, K. and Reddy, B.S. “Effect of induced molting in male and female Line broiler breeder hens by zinc oxide and feed withdrawal methods on post molt performance parameters”: International. Journal of Poultry Sciences, Vol. (7), No. 6, pp. 586-593. (2008).

[3] Evans, M. “Pre-molt Body Composition, Productivity, and Effects of Molt Method on Body Compositional Changes and Productivity in Two Commercial Egg Strains by Melissa”: A thesis submitted to the Graduate Faculty of North Carolina State University in partial fulfillment of the requirements for the degree of Master of Science Physiology Raleigh, North Carolina. (2012).

[4] Berry, W. D. The physiology of induced molting. Poultry Science, pp. 82:971-980. (2003).

[5] Khan, R.U. Zia-ur Rahmanb, I. Javedc, Muhammadc, F. “Effect of vitamins, probiotics and protein on semen traits in post-molt male broiler breeders”: Animal Reproduction Science, Vol. (135), pp. 85–90. (2012)

[6] Baker, M. Brake, J. and McDaniel, G.R. “The relationship between body loss during an induced molt and post molt egg production, egg weight, and shell quality in caged layers”: Poultry Science, Vol. (62), pp. 409–413. (1983).

[7] Robinson, F. E. and Robinson, N. A. “Reproductive performance, growth rate and body composition of broiler breeder hens differing in body weight at 21 weeks of age. Can”: Journal of Animal Science, Vol. (71), pp. 1233-1239. (1991).

[8] Sun, J. and Coon, C.N. “The effects of body weight, dietary fat and feed withdrawal rate on the performance of broiler breeders”: Journal Application of Poultry Research, Vol. (14), pp. 728-739. (2005).

[9] Hagger, C. “Genetic correlation between body weight of cocks and production traits in laying hens and their possible use in breeding schemes”: Poultry Science, pp. 73:381-387. (1994).

[10] Lesson, S. Caston, L. and Summers, J.D. “Layer performance of four strains of Leghorn pullets subjected to various rearing programs”: Poultry Science, pp. 76:1-5. (1997).

[11] El-Sagheer, M. and. Hassanein, H.H. “Productive performance of Bovans brown and Hi-sex brown laying hens as affected by body weight at 20 weeks of ag”: Egyptian Poultry Science Journal, Vol. (26), pp. 731-748. (2006).

[12] Kirikci, K. Gunlu, A. Cetin, O. and Garip, M. “Effect of hen weight on egg production and some egg quality characteristics in the Partridge (Alectoris graeca”: Poultry Science, Vol. (86), pp. 1380-1383. (2007).

[13] Hazan, A. and Yalcin, S. Comparison of four methods of inducing molt in heavy breeders on

subsequent egg production and hatchability. Zootenica Intern., No. 3, pp. 38-41 (Poult. Abst., pp. 15, 01255. (1989).

[14] Wiggins, C. B. “Hatchability of Post-Peak Egg Production Broiler Breeder Eggs as Influced by Pre-Incubation Warming”: A Thesis Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Master of Science. (2008)

[15] Tona, K. Bamelis, F. De Ketelaere, B. Bruggeman, V. and Decuypere, F. “Effect of induced molting on albumen quality, hatchability and chick body weight from broiler breeders”: Poultry Science, Vol. (81), pp. 327- 332. (2002).

[16] Duncan, D. B. Multiple range and multiple F test. Biometrics, Vol. (11), pp. 1-42. (1955).

[17] Bar, A. Razaphkovsky, V. Wax, E. and Malka, Y. “Effect of age at moulting on postmoulting performance”: Poultry Science, Vol. (80), pp. 874-878. (2001).

[18] Ahmad, Z. Sahota, .A. W. Akram, M. Khalique, A. Jatoi, A. S. Shafique, M. Usman, M. and Khan, U. “Pre and Post-Moult Productive Efficiency in Four Varieties of Indigenous Aseel Chicken During Different Production Cycle”: The Journal of Animal & Plant Sciences, Vol. (24), No. 5, pp. 1276-1282. (2014).

[19] Brake, J. and McDaniel, G. R. “Factors affecting broiler breeding performance. 2. Relationship of daily feed intake to performance of forced moulted broiler breeder hens”: Poultry Science, Vol. (60), pp. 313-316. (1981).

[20] Malik, H. Ehsan-Ul-Haq, M. and Ahmad, F. “Effect of age and body weight at molting on the performance of broiler breeder hens under environmental control houses in Pakistan”: Pakistan Veterinary Journal, Vol. (28) No. 4, pp. 189-193. (2008).

[21] Donalson L. M., Kim, W. K. Woodward, C. L. Herrera, P. Kubena, L. F. Nisbet, D. J. and Ricke, S. C. “Utilizing different ratios of alfalfa and layer ration for molt induction and performance in commercial laying hens”: Poultry Science, Vol. (84), pp. 362−369. (2005).

[22] Al-Kirkuki, M. S. and Ali, K.A. “Effect of force molting by zinc oxide and the role of vitamin c on body weight and reentry to production of broiler breeder”: Mesopotamia Journal of Agriculture Vol. (40) No. 2, pp. 9-18. (2012).

[23] Yousaf, M. and Ahmad, N.. “Effects of housing systems on productive performance of commercial layers following induced molting by aluminum oxide supplementation”: Pakistan Veterinary Journal, Vol. 26(3): 101-104. (2006).

[24] Aygun, A. and Olgun, O. “The effect of non- feed and feed withdrawal molting methods on molt and postmolt performance in laying hens. Trends Anim”: Veterinary Science, Vol. (1), pp. 45-48. (2010).

[25] Ahmed, N., Zia-ur-Rehman, Akram, M.Shah, T. H. and Yousaf, M. Effect of a new moulting programme on productive performance of spent layers under indigenous conditions. Pakistan Veterinary Journal, Vol. (15), pp. 46-48. (1995).

[26] Cleaver, W. T. Chirstensen, V. L. and Ort, J. F. “Physiological characterstics of a moult and second cycle of egg laying in turkey breeder hens”: Poultry Science, Vol. (65), pp. 2335-2342. (1986).

[27] McDaniel, G. R. “Factor affecting broiler breeder performance. 6. The relationship of pre-moult performances to post-moult performance”: Poultry Science, Vol. (64), pp. 2267-2272. (1985).

[28] Nazligul, A. Turkyilmaz, K.Bardalciodlu, H.E. “A study on some production trait and egg quality characteristics of Japanese quail”: Turkish Journal of Veterinary & Animal. Sciences, Vol. (25), pp. 1007-1013. (2001).

[29] Bell, D.D. “Flock replacement programs and flock recycling”: Pages 1059–1077 in Commercial Chicken Meat and Egg Production. 5th ed. (2002).

[30] Mohammed, H. N. “Effect Of force molting using zinc oxide and addition vitamin (AD3E) mixture on some productive traits of broiler breeders”: M.Sc. Thesis, Agriculture College, Sulaimani Univ., Iraq, (2010).

[31] Kaya, S.H.D. Haliloglu, U.S. and Ipek, H. “Effect of dietary vitamin a and zinc on egg yield and some blood parameters of laying hens”: Turkish Journal of Veterinary & Animal. Sciences, Vol. 25:763-769. . (2001).

[32] Durmus, İ. Atasoglu, C. Mizrak, C. Ertas, S.and Kaya, M. “Effect of increasing zinc concentration in the diets of brown parent stock layers on various production and hatchability traits”: Arch. Tierz. 5:483-489. (2004).

[33] Gerry, R.W. “The effect of force moulting (resting) on the performance of chickens laying brown eggs”: Sife Sci. Agril. Expt. Sta. Bull. 755. Univ., Maine, ORONO, ME. (1979).

[34] Mohammed, H. N. and. Ali, K. A. “Effect of Force Molting on Egg Fertilty and Hatchabilty Percentage and Concentration of Zn of Zn in the egg components traits of Broiler Breeder”: Journal Tikrit Univ. For Agri. Sci. Vol. ( 14 ) No.(2) pp. 1813-1646. (2014)

[35] Alsobayel, A.A. and Alkhateeb, N.A. Effect of high dietary aluminum as a force resting agent on fertility and hatchability parameters on laying hens. J. Coll. Agric. King Saud University of Agriculture Science Vol. (2), pp. 207-216. (1992).

[36] Al-Kirkuki M. S., and Ali, K.A. “effect of force molting by dietary supplementation with zno and vitamin c and postmolting periods on egg production of broiler breeder chickens”: Journal of Zankoy Sulaimani- Part A, Special Issue, Vol. 16, (2014).

[37] Park, S.Y. Birkhold, S.G. Kubena, L.F. Nisbet, D.J. and Ricke, S.C. “Effects a of high zinc diets using zinc propionate on molt induction, organs and postmolt egg production and quality in laying hens”: Poultry Science, Vol. (83), pp. 24-33. (2004).

[38] Bar, B. Razaphkovsky, V. Shinder, D, Vax, E. “Alternative Procedures for molt nduction: Practical Aspects”: Journal of Poultry Science, Vol. (82), pp. 543-550. (2003).

[39] El-Deek, A.A. and Al-Harthi, M.A. “Post Molt Performance Parameters of Broiler Breeder Hens Associated with Molt Induced by Feed Restriction, High Dietary Zinc and Fasting”: International Journal of Poultry Science, Vol. (3), No. (7), pp. 456-462. (2004).

[40] Nakazawa, M. Futura, K. and Fuke, T. “Studies on the forced molting in layers. Effect of force molting in autumn on the performance of the layer”: World’s Poultry Science, pp. 26: 821. (1970). (abstr.).

[41] Roland, D.A. Sr. and Bushong, R.D. “The influence of force molting incidence of uncollectable eggs”: Poultry Science, Vol. (57), pp. 22-26. (1978).

[42] Zapata, L.V. and Gernat, A.G. “The effect of four levels of ascorbic acid and two levels of calcium on egg shell quality of forced molted White Leghorn hens”: Poultry Science, Vol. (74), 1049-1052. (1995). (abstr.)

[43] Altan, O. Oguz, I. and Akbas, Y. “Effects of selection for high body weight and age of hen on egg characteristics in Japanese quail (Coturnix coturnix japonica)”: Turkish Journal of Veterinary & Animal. Sciences, Vol. (22), pp. 467-473. (1998).

[44] Siegel, P.B. “Selection for body weight at eight weeks of age. 1. Short term responses and heritabilities”: Poultry Science, Vol. (41), pp. 954–962. (1962).

[45] Festing, M.F. and Nordskog, A.W. “Response to selection for body weight and egg weight in chickens”: Genetics Vol. (55), pp. 219-231. (1967).

[46] Luquetti, B.C. Gonzales, E. Bruno, L.D.G. Furlan R.L. and Macari, M. “Egg traits and physiological neonatal chick parameters from broiler breeder at different ages”: Brazil Journal of Poultry Science, Vol. (6), pp. 13-17. ( 2004).

[47] Lesson, S. and Summers, J.D.“Broiler Breeder Production”: University Books, Guelph, Ontario, Canada.