Mohammad Yasin Amer
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
Sohail Hassan Khan
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
Muhammad Ismail Abbass
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
Ghulam Abbass
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
Naveed Iftikhar
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
Muhammad Anwar
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
Muhammad Amin
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
Muhammad Yaqoob Anjum
Poultry Research Institute, Murree Road, Shamsabad, Rawalpindi, Pakistan
ABSTRACT
A total of 1600 commercial strain (Nick Chick) Single Comb White Leghorn hens, 90 week of age, were used in this study to determine the effects of different induced molting programs on production and immune parameters. The hens were randomly divided into four treatment groups (three experimental and one control) of 400 hens each. The hens in the first treatment group were fed a layer ration containing 4 g/kg diet of C for 5 d and received a reduced photoperiod of 8 h/d for 5 d (Al2O3 group). In the second group, feed was withdrawn for 10 d, the photoperiod was reduced to 8 h/d and oyster shell and water were provided for ad libitum consumption. At Day 11, hens consumed corn and oyster shell ad libitum until Day 30 and at Day 31, hens was returned to a full feed layer ration and received 16 h of light/d (California group). In the third treatment, birds were provided feed and water ad libitum for one day with 8 h light. During day 2-3, feed and water were withdrawn. On 4th day water was provided but no feed was given. On 5 to 49 days, birds were offered feed 27 g each till egg production was reached upto 1%. Water was provided ad libitum. Full feed at the rate of 112 g each bird was offered from day 50 onward. Birds received 8 h of light till 49 days which was increased to 16 h on 50th day onwards (Washington group). The last group served as control. Body weight, egg production, egg size, internal egg quality, shell weight and mortality were determined. Total circulating leukocytes and differential leukocyte counts were also measured. The results demonstrated that induced molting significantly increased egg production from 65 to 75 to 81%, Haugh units from 80.1 to 85.6 to 87.0 and shell weight from 5.4 g to 6.3 to 6.5 g when compared to control. The total circulating leukocytes was significantly lower in molted hens than in control hens. Differential leukocyte counts were affected by all induced molting programs and the heterophil to lymphocyte ratio was significantly increased, reaching 0.60, whereas that of controls was only 0.19.
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How to cite this article
Mohammad Yasin Amer, Sohail Hassan Khan, Muhammad Ismail Abbass, Ghulam Abbass, Naveed Iftikhar, Muhammad Anwar, Muhammad Amin and Muhammad Yaqoob Anjum, 2013. Effects of Different Induced Molting Methods on the Performance of Commercial Layers. Pakistan Journal of Nutrition, 12: 1075-1080.
DOI: 10.3923/pjn.2013.1075.1080
URL: https://scialert.net/abstract/?doi=pjn.2013.1075.1080
DOI: 10.3923/pjn.2013.1075.1080
URL: https://scialert.net/abstract/?doi=pjn.2013.1075.1080
REFERENCES
- Al-Batshan, H.A., S.E. Sceideler, B.L. Black, J.D. Garlich and K.E. Anderson, 1994. Duodenal calcium uptake, femur ash, and eggshell quality decline with age and increase following molt. Poult. Sci., 73: 1590-1596.
CrossRefPubMedDirect Link - Bar, A., V. Razaphkovsky, E. Wax and Y. Malka, 2001. Effect of age at molting on postmolting performance. Poult. Sci., 80: 874-878.
Direct Link - Berry, W.D. and J. Brake, 1987. Postmolt performance of laying hens molted by high dietary zinc, low dietary sodium and fasting: Egg production and eggshell quality. Poult. Sci., 66: 218-226.
PubMed - Breeding, S.W., J. Brake, J.D. Garlich and A.L. Johnson, 1992. Molt induced by dietary zinc in a low-calcium diet. Poult. Sci., 71: 168-180.
Direct Link - Christmas, R.B., R.H. Hams and O.M. Junqueira, 1985. Performance of single comb white leghorn hens subjected to 4 or 10 day feed withdrawal force rest procedures. Poult. Sci., 64: 2321-2324.
CrossRef - Hembree, D.J., A.W. Adams and J.V. Craig, 1980. Effects of force-molting by conventional and experimental light restriction methods on performance and agonistic behavior of hens. Poult. Sci., 59: 215-223.
CrossRef - Hussein, A.S., A.H. Cantor and T.H. Johnson, 1988. Use of high levels of dietary aluminum and zinc for inducing pauses in egg production of Japanese quail. Poult. Sci., 67: 1157-1165.
CrossRef - Hussein, A.S., A.H. Cantor and T.H. Johnson, 1989. Comparison of the use of dietary aluminum with the use of feed restriction for force-molting laying hens. Poult. Sci., 68: 891-896.
CrossRef - Nesheim, M.C., R.E. Austic and L.E. Card, 1979. Poultry Production. 12th Edn., Lea and Febiger, USA.
Direct Link - Rodriguez, A., O. Kalin, Y. Nys and J.M. Garcia-Ruiz, 2002. Influence of the microstructure on the shell strength of eggs laid by hens of different ages. Br. Poult. Sci., 43: 395-403.
PubMed - Roland, D.A., D.J. Holcombe Sr. and R.H. Harms, 1977. Further studies with hens producing a high incidence of non-calcified or partially calcified eggs. Poult. Sci., 56: 1232-1236.
CrossRef - Soe, H.Y., M. Yukihiro, M. Shinji, Y. Masato and O. Shigeru, 2007. Effects of restricted feeding molt diet on induction of molt and energy intake in laying hens. J. Poult. Sci., 44: 366-374.
CrossRef - Yousaf, M. and A.S. Chaudhry, 2008. History, changing scenarios and future strategies to induce moulting in laying hens. World Poult. Sci. J., 64: 65-75.
CrossRef