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

Mahdi Salih,Hawraa G.T.Al-Shebani,Moustafa Abed-Almajeed,Ammar Shaker,Faez Mohammad,Asmaa Mohammed D K,Omar Mardenli

doi:10.33794/qjas.2021.170226

Mahdi Salih, Hawraa G.T.Al-Shebani + Show 5 more

Open Access

https://doi.org/10.33794/qjas.2021.170226

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Abstract

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.

Highlights

The development of poultry science is linked to the interplay of many paths, the most important of which are genetics, animal husbandry, physiology and nutrition [1,2].The goals that poultry breeders aspire to is to increase production in quantity and quality and to improve the health status depending on the nutrition and care means [3,4,5]
Several studies have shown that the promotion of beneficial bacteria within the gastrointestinal tract of laying hens has an important role in improving egg production and quality characteristics [15,16,17,18], as well as the haematological indexes of blood [19,20,21], and feed consumption rate [22,23]
The experiment followed a completely randomized block design (CRD), 240 laying hens of Babcock hybrid strain were randomly distributed since the first day of the experiment into four independent and identical groups, each group included 60 birds according to three replicates of 20 birds in every replicate

Summary

Introduction

The development of poultry science is linked to the interplay of many paths, the most important of which are genetics, animal husbandry, physiology and nutrition [1,2].The goals that poultry breeders aspire to is to increase production in quantity and quality and to improve the health status depending on the nutrition and care means [3,4,5]. The breeders turned to the intensive use of antibiotics in feeding as therapeutic doses and growth stimulants This led to the development of bacterial strains resistant to antibiotics [6], which made the antibiotics lose their therapeutic role and become dangerous for the health of poultry [7] and humans [8]. Several studies have shown that the promotion of beneficial bacteria within the gastrointestinal tract of laying hens has an important role in improving egg production and quality characteristics [15,16,17,18], as well as the haematological indexes of blood [19,20,21], and feed consumption rate [22,23]. We aimed to test levels of addition of lactic acid bacillus in terms of its positive impact on the production and blood indicators, especially in the local conditions of the Syrian Arab country

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