IMPACT OF DIETARY PROBIOTIC ON GROWTH PERFORMANCE, CARCASS TRAITS, SERUM BIOCHEMICAL CONSTITUENTS AND IMMUNE RESPONSIVENESS IN BROILER RABBITS | ||||
Egyptian Poultry Science Journal | ||||
Article 5, Volume 45, Issue 1, March 2025, Page 69-77 PDF (304.5 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/epsj.2025.420674 | ||||
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Authors | ||||
I. H. Al-Homidan1; Alharbi S. S.1; Aljtayli M. F.1; Fathi M.M.![]() ![]() | ||||
1Anim. Poult. Prod. Dept., Coll. Agric. Food, Qassim Univ., Al-Qassim 51452, Saudi Arabia | ||||
2Anim. Poult. Prod. Dept., Coll. Agric. Food, Qassim Univ., Al-Qassim 51452, Saudi Arabia Poult. Prod. Dept., Fac. Agric., Ain Shams Univ., Hadayek Shoubra, 11241 Cairo, Egypt | ||||
3Anim. Poult. Prod. Dept., Coll. Agric. Food, Qassim Univ., Al-Qassim 51452, Saudi Arabia Poult. Prod. Dept., Fac. Agric., Kafrelsheikh Univ., Kafr El-Sheikh 33516, Egypt | ||||
4Anim. Poult. Prod. Dept., Coll. Agric. Food, Qassim Univ., Al-Qassim 51452, Saudi Arabia Poult. Breed. Dept., Anim. Prod. Res. Inst., Agric. Res. Center, Dokki, Giza, 12618, Egypt | ||||
Abstract | ||||
The objective of the present study is to investigate the impact of dietary probiotic administration on growth parameters, carcass parameters, serum biochemical constituents and immune responsiveness in growing rabbits. A total number of 54 rabbits aged 4 weeks were allocated randomly into three experimental treatments with levels of dietary probiotic (0, 1 and 2%). The probiotic containing 2.67 x 1011 CFU/g of Bacillus licheniformis. There were 9 replicates of each dietary treatment with 2 rabbits each. Dietary probiotic had no significant effect on body weight gain, feed conversion ratio, carcass % and carcass parts percentages including front%, mid%, hind %, skin %, and head%. Also, dietary probiotic supplementation had no significant impact on internal organs including heart, testes, lunges, kidney and thymus, while liver % was reduced due to dietary 2% probiotic in growing rabbits. Probiotic supplementation had insignificant impacts on all blood biochemical traits including total protein, albumin, globulin, cholesterol, triglycerides and urea in fattening rabbits. Dietary probiotic supplementation had a beneficial impact on cell-mediated immunity at 24 h post-injection of phytohemagglutinin P (PHA-P) into the left ear in growing rabbits. It could be concluded that dietary probiotic had a positive impact on cell-mediated immunity, while growth parameters, carcass traits, and serum biochemical constituents were not affected. | ||||
Keywords | ||||
Probiotics; growth performance; cellular immunity | ||||
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