Effects of decreasing dietary crude protein levels on the growth performance, carcass quality and meat quality of broiler chickens

Norakamol Laorodphan; Punnares Rattanapradit; Wirot Likittrakulwong; Suban Foiklang; Tossaporn Incharoen; Khongdet Phasinam

doi:10.31893/avr.2024008

Keywords:

Abstract

The objective of this study was to determine the effects of decreasing crude protein in the broiler diet on the performance and carcass composition of broiler chickens. In the experiments, 128 male Arber Acres (15 days old) were divided into 4 different protein groups (21.50, 20.50, 19.50 and 18.50%). All the treatments were isoenergetic at 3,150 kcal/kg. Water was supplied ad libitum for broilers in the different dietary treatments. The experiment lasted for 42 days. The results revealed that the body weight, weight gain and ADG of T1, T2 and T3 were greater than those of T4, whereas the feed intake decreased when the birds were fed T4. The edible meat yield, with the exception of that of the breast, wing and back, was not significantly influenced by the experimental diets, whereas the breast percentage decreased with decreasing levels of protein in the diet. Moreover, overall meat traits did not differ. The results of this study suggest that consuming more than 19.50% crude protein in the diet has no negative effect on performance or carcass or meat traits.
References
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8. Jaturasitha, S., Khiaosa-ard, R., Phongphaew, A., Leotaragul, A., Saiong, S., Apichasrungkoon, T., & Leangwunta, V. (2004). Carcass and indirect meat quality of Thai native and Gai Baan Thai chickens in different sex and weight. In Proceeding of the 42nd Kasetsart University Annual Conference (pp. 137–146). Kasetsart University.
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12. Marcu, A., Vacaru-Opriş, I., Marcu, A., Nicula, M., Dronca, D., & Kelciov, B. (2012). The influence of feed energy and protein level on meat quality at „ Hubbard F15” broiler chickens. Scientific Papers: Animal Science and Biotechnologies, 45(2), 432–439.
13. Marcu, A., Vacaru-Opriş, I., & Marcu, A. (2009). The influence of feed protein and energy level on meat chemical composition from different anatomical regions at “Coob 500” hybrid, Scientific Papers: Animal Science and Biotechnologies, 42(1), 147–150.
14. Mathivanan, R., Selvaraj, P., & Nanjappan, K. (2006). Feeding of fermented soybean meal on broiler performance. International Journal of Poultry Science, 5(9), 868–872. https://doi.org/10.3923/ijps.2006.868.872
15. Olomu, J. M., & Offiong, S. A. (1980). The effect of different protein and energy levels and time of change from starter to finisher ration on the performance of broiler chickens in the tropics. Poultry Science, 59(4), 828–835. https://doi.org/10.3382/ps.0590828
16. Olomu, J. M. (1995). Monogastric animal nutrition: principles and practice. A Jachem Publication.
17. Roy, S. C., Alam, M. S., Ali, M. A., Chowdhury, S. D., & Goswami, C. (2010). Different levels of protein on the performance of synthetic broiler. Bangladesh Journal of Veterinary Medicine, 8(2), 117–122. https://doi.org/10.3329/bjvm.v8i2.11193
18. Temim, S., Chagneau, A. M., Guillaumin, S., Michel, J., Peresson R., & Tesseraud., S. (2000). Does excess dietary protein improve growth performance and carcass characteristics in heat-exposed chickens?. Poultry Science, 79(3), 312–317. https://doi.org/10.1093/ps/79.3.312
19. Cheng, T. K., Hamre, M. L., & Coon, C. N. (1997). Effect of environmental temperature, dietary protein, and energy levels on broiler performance. Journal of Applied Poultry Research, 6(1), 1–17. https://doi.org/10.1093/japr/6.1.1
20. Widyaratne, G. P., & Drew, M. D. (2011). Effects of protein level and digestibility on the growth and carcass characteristics of broiler chickens. Poultry Science, 90(3), 595–603. https://doi.org/10.3382/ps.2010-01098

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How to cite

Laorodphan, N., Rattanapradit, P., Likittrakulwong, W., Foiklang, S., Incharoen, T., & Phasinam, K. (2025). Effects of decreasing dietary crude protein levels on the growth performance, carcass quality and meat quality of broiler chickens. Applied Veterinary Research, 3(2), 2024008. https://doi.org/10.31893/avr.2024008

[1] Abro, M. R., Sahito, H. A., Memon, A., Soomro, R. N., Soomro, H., & Ujjan, N. A. (2012). Effect of various protein source feed ingredients on the growth performance of broiler. International Journal of Medicinal Plant Research, 1(4), 38–44.

[2] AOAC. (1990). Official Method of Analysis (15th ed.). Association of Official Analytical Chemists, Verginia, USA.

[3] Aletor, V. A., Hamid, I. I., Nieß, E., & Pfeffer, E. (2000). Low-protein amino acid-supplemented diets in broiler chickens: effects on performance, carcass characteristics, whole-body composition and efficiencies of nutrient utilization. Journal of the Science of Food and Agriculture, 80(5), 547–554. https://doi.org/10.1002/(SICI)1097-0010(200004)80:5%3C547::AID-JSFA531%3E3.0.CO;2-C

[4] Dairo, F. A. S., Adesehinwa, A. O. K., Oluwasola, T. A., & Oluyemi, J. A. (2010). High and low dietary energy and protein levels for broiler chickens. African Journal of Agricultural Research, 5(15), 2030–2038. https://doi.org/10.5897/AJAR10.254

[5] Deschepper, K., & Groote, G.D. (1995). Effect of dietary protein, essential and non-essential amino acids on the performance and carcass composition of male broiler chickens. British Poultry Science, 36(2), 229–245. https://doi.org/10.1080/00071669508417772

[6] Francesch, M., & Brufau, J. (2004). Nutritional factors affecting excreta/litter moisture and quality. World's Poultry Science Journal, 60(1), 64–75. https://doi.org/10.1079/WPS20035

[7] Horniakova, E., & Abas, K.A. (2009). Influence of Low levels of protein and sex on carcass traits and nutrient content in broiler meats. Slovak Journal of Animal Science, 42(2), 75–78.

[8] Jaturasitha, S., Khiaosa-ard, R., Phongphaew, A., Leotaragul, A., Saiong, S., Apichasrungkoon, T., & Leangwunta, V. (2004). Carcass and indirect meat quality of Thai native and Gai Baan Thai chickens in different sex and weight. In Proceeding of the 42nd Kasetsart University Annual Conference (pp. 137–146). Kasetsart University.

[9] Laudadio, V., Dambrosio, A., Normanno, G., Khan, R. U., Naz, S., Rowghani, E., & Tufarelli, V. (2012). Effect of reducing dietary protein level on performance responses and some microbiological aspects of broiler chickens under summer environmental conditions. Avian Biology Research, 5(2), 88–92. https://doi.org/10.3184/175815512X13350180713553

[10] Malomo, G. A., Bolu, S. A., & Olutade, S. G. (2013). Effects of dietary crude protein on performance and nitrogen economy of broilers. Sustainable Agriculture Research, 2(3), 52–57. https://doi.org/10.5539/sar.v2n3p52

[11] Marcu, A., Vacaru-Opriş, I., Dumitrescu, G., Marcu, A., Ciochină, L. P., Nicula, M., Dronca, D., & Kelciov, B. (2013). Effect of diets with different energy and protein levels on breast muscle characteristics of broiler chickens. Scientific Papers: Animal Science and Biotechnologies, 46(1), 333–340.

[12] Marcu, A., Vacaru-Opriş, I., Marcu, A., Nicula, M., Dronca, D., & Kelciov, B. (2012). The influence of feed energy and protein level on meat quality at „ Hubbard F15” broiler chickens. Scientific Papers: Animal Science and Biotechnologies, 45(2), 432–439.

[13] Marcu, A., Vacaru-Opriş, I., & Marcu, A. (2009). The influence of feed protein and energy level on meat chemical composition from different anatomical regions at “Coob 500” hybrid, Scientific Papers: Animal Science and Biotechnologies, 42(1), 147–150.

[14] Mathivanan, R., Selvaraj, P., & Nanjappan, K. (2006). Feeding of fermented soybean meal on broiler performance. International Journal of Poultry Science, 5(9), 868–872. https://doi.org/10.3923/ijps.2006.868.872

[15] Olomu, J. M., & Offiong, S. A. (1980). The effect of different protein and energy levels and time of change from starter to finisher ration on the performance of broiler chickens in the tropics. Poultry Science, 59(4), 828–835. https://doi.org/10.3382/ps.0590828

[16] Olomu, J. M. (1995). Monogastric animal nutrition: principles and practice. A Jachem Publication.

[17] Roy, S. C., Alam, M. S., Ali, M. A., Chowdhury, S. D., & Goswami, C. (2010). Different levels of protein on the performance of synthetic broiler. Bangladesh Journal of Veterinary Medicine, 8(2), 117–122. https://doi.org/10.3329/bjvm.v8i2.11193

[18] Temim, S., Chagneau, A. M., Guillaumin, S., Michel, J., Peresson R., & Tesseraud., S. (2000). Does excess dietary protein improve growth performance and carcass characteristics in heat-exposed chickens?. Poultry Science, 79(3), 312–317. https://doi.org/10.1093/ps/79.3.312

[19] Cheng, T. K., Hamre, M. L., & Coon, C. N. (1997). Effect of environmental temperature, dietary protein, and energy levels on broiler performance. Journal of Applied Poultry Research, 6(1), 1–17. https://doi.org/10.1093/japr/6.1.1

[20] Widyaratne, G. P., & Drew, M. D. (2011). Effects of protein level and digestibility on the growth and carcass characteristics of broiler chickens. Poultry Science, 90(3), 595–603. https://doi.org/10.3382/ps.2010-01098

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