Effect of Protexin (probiotic) and formic acid on performance of broilers

Document Type : Research Paper

Authors

1 Former M. Sc. student, University of Guilan

2 Associate professor in Animal Sciences, University of Guilan

3 Assistant professor in Animal Sciences, University of Guilan

Abstract

The effects of Protexin (probiotic) and formic acid were studied on performance in 200 Cobb broiler chicks in a completely randomized design with 4 treatments and 5 replications and 10 chicks per replicate. The chicks in first group as control were fed with basal diet. The chicks in the second, third and forth groups were fed with food, which contained 0.1 gr/kg Protexin, 0.8 percent formic acid and 0.1 gr/kg Protexin with 0.8 percent Formic acid in diet, respectively. To measurement of performance, broilers and remainder food in each replication were weight, weekly and feed conversion rate were calculated in each week. The results indicated that body weight gain not affected by experimental treatments (P>0.05). Protexin and Protexin + formic acid in grower period and Protexin in finisher period reduced feed intake (P<0.05). Treatment groups improved feed conversion rate in grower and finisher periods (P<0.05) but the forth group were not significantly different from second and third groups (P>0.05). Thymus and bursa of Fabricius weights were increased in treatment groups (P<0.05). It is concluded that Protexin and formic acid improved feed conversion rate and increased weights of thymus and bursa of Fabricius, synergism effect of Protexin and formic acid on performance did not observe.

Keywords


قهری ح
.، شیوازاد م.، فرهومند پ.، اقبال ج.، و نجف زاده م. 1386 . بررسی استفاده از اسیدهای آلی در جیره بر عملکرد
.33 -26 :
جوجه های گوشتی. مجله پژوهش و سازندگی، 77
Abdel- Fattah S., Sanhoury A., Mednay N. and Abdel- Azim F. 2008. Thyroid activity, some blood constituents,
organs morphology and performance of broiler chicks fed supplemental organic acids. International Journal
of Poultry Science, 7 :215-222
Denli M., Okan F. and Celik k. 2003. Effect of dietary probiotic, organic acid and antibiotic supplementation to
diets on broiler performance and carcass yield. Journal of Nutrition, 2: 89-91.
Dhawale A. 2005. Better eggshell quality with a gut acidifier. Journal of Poultry International, 44: 18-21.
Dunham H. and Wiliams C. 1993. Lactobacillus reuteri immunomodulation of stressor associated diseases in
newly hatched chickens and turkeys. Poultry Science, 72: 103.
Gill H., Rutherfurd G. and Cross M. 2001. Dietary probiotic supplementation enhances natural killer cell activity
in the elderly. Journal of Clinical Immunology, 21: 264- 271.
Green A. and Sainsbury D. W. B. 2001. The role of probiotic in producing quality poultry products. In:
proceeding of XV European Symposium on the quality poultry meat, 9-12 September., Antalya, Turkey, pp.
245-251.
Gunal M., Yayli G., Kaya O., Karahan N. and Sulak O. 2006. The effects of antibiotic growth promoter,
Probiotic or organic acid supplementation on pereformance, intestinal microflora and tissue of broilers.
International Journal of Poultry Science, 5: 149-155.
Haque M., Islam S., Akbar M. A., Chowdhury R., Khatum Karim M. R. and Kemppainen B. W. 2010. Effect of
dietary citric acid, flavomycin and their combinationonthe performance, tibia ash and immune status of
broiler. Journal of Animal Science, 90: 57-63
 
.
Jin L. Z., Abdullah N. and Jalaleldin S. 1998. Growth performance, intestinal microbial population and serum
cholesterol of broilers diets containing Lactobacillus cultures. Poultry Science, 77: 1259-1265.
Kabir S. L. M., Rahman M. M. and Ahmed S. U. 2004. The dynamic of probiotic on growth performance and
immune response in broilers. International Journal of Poultry Science, 3: 361- 364.
Khaksefidi A. and Ghoorchi T. 2006. Effect of probiotic on performance and immunocompetence in broiler
chicks. Journal of Poultry Science, 43: 296-300.
Khosravi A., Boldaji F., Dastar B. and Hasani S. 2008. The use of some feed additives as growth promoter in
broilers nutrition. International Journal of Poultry Science, 7: 1095- 1099.
Lesson S. H., Namkung M., Antongiovanni E. and Lee H. 2005. Effect of butyric acid on the performance and
carcass yield on broiler chickens. Poultry Science, 84: 1418- 1422.
NRC. 1994. Nutrient requirements of poultry (9 th ed), National Academy Press. Washington. D.C.
SAS Institute. 2006. SAS/SATA users guide. Version 9.1. SAS Inst. Cary, N. C.
Shoeib H. K. and Sayed A. N. 1997. Response of broiler chicks to probiotic supplementation. Journal of
Veterinary Medical, 36:103-116.
Taherpour k and Moravej H. 2009. Effect of dietary probiotic, prebiotic and butyric acid glycerides on
performance and serum composition in broiler chickens. African Journal of Biotechnology, 8: 2329-2334.
Vali N. 2009. Probiotic in quail nutrition: A Review. International Journal of Poultry Science, 8: 1218- 1222.
Zakeri A. and Kashefi P. 2011. The comparative effects of five growth promoters on broiler chickens humoral
immunity and perfprmance. Journal of Animal and Veterinary Advances, 10: 1097-1101.