Print ISSN: 2077-5822

Online ISSN: 2618-1479

Keywords : Lactic acid bacillus


Efficacy of Using Lactic Acid Bacillus on Productive Parameters of Babcock B300 Laying Hens Strain

mahdi salih; Moustafa Abed-Almajeed; Omar Mardenli; Faez Saleh Mohammad; Ammar subhy Shaker; Hawraa G.T.Al-Shebani; Asmaa Mohammed D. K

Al-Qadisiyah Journal For Agriculture Sciences, 2021, Volume 11, Issue 2, Pages 72-77
DOI: 10.33794/qjas.2021.170226

This research was carried out in the Research Center of the Faculty of Agriculture in Al-Muslimiya, 240 hybrid Babcock B300 female laying hens were randomly distributed since the first day of the experiment into four independent groups. Each group included 60 birds according to three replicates (20 birds in each replicate). Lactic acid bacillus was added to the feed mixture according to three levels (50 mg/kg; B group, 100 mg /kg; C group and 150 mg/kg; D group), while the first group was considered as a control group (A group) and was without additions. During the production period, the results showed that the addition of lactic acid bacillus led to significant differences (p<0.03) in the egg production and shell thickness compared with the control group. The additions did not affect the egg weight and feed consumption rate as well as the feed conversion ratio. The birds of the third group (C group) showed clear superiority in various productive traits compared to others in the other groups throughout the productive period followed by the birds of group D and then group B. The current study concluded that adding 100 mg /kg lactic acid bacillus to the feed mixtures for laying hens will contribute to raising the productive efficiency of laying hens and improving egg specifications.

Effect of Different Proportions of Probiotics on Immunological Blood Parameters of Babcock Laying Hens Strain

Moustafa Abed-Almajeed; mahdi salih; Omar Mardenli; Faez Saleh Mohammad; Ammar subhy Shaker; Hawraa G.T.Al-Shebani; Asmaa Mohammed D. K

Al-Qadisiyah Journal For Agriculture Sciences, 2021, Volume 11, Issue 2, Pages 67-71
DOI: 10.33794/qjas.2021.170204

The research was conducted at the Research Center of Agriculture Faculty of the University of Aleppo. 240 chickens of Babcock B300 strain were used and distributed randomly from day one into four independent groups. Each group included 60 birds distributed into three replicates (20 birds). The control group (A group) was fed a balanced standard feed mixture (1-18 weeks) without additives, while lactic acid bacillus was added to treatments groups according to three levels (50 mg/kg feed; B group, 100 mg/kg feed; C group and 150 mg/kg feed; D group). Haematological analyzes were performed over two- time intervals (1-21 weeks and 22-32 weeks). In the first time interval, results showed that a rise in blood albumin (P<0.001) was also observed in C and D groups compared to the A group. The rates of blood globulin increased (P<0.02) in the D group compared with the rest of the groups. No significant differences were noticed across the various groups for the total number of white blood cells and lymphocytes rates. In the second time interval (productive stage), significant differences (P<0.01) were noticed across the various groups in the percentages of the total protein (the highest value was 4.75 g/dl; B group) and serum albumin (the highest value was 3.26 g/dl; D group). It is concluded from the current study that the addition of probiotics to the mixtures of laying hens had a significant improvement in the immune parameters in the blood.