Bacillus amyloliquefaciens BLCC1-0238 Can Effectively Improve Laying Performance and Egg Quality Via Enhancing Immunity and Regulating Reproductive Hormones of Laying Hens

Zhou, Yufa; Li, Song; Pang, Quanhai; Miao, Zengmin

doi:10.1007/s12602-019-9524-1

Cited by 33 publications

(25 citation statements)

References 36 publications

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“…Enterohepatic circulation is the main way to regulate E2 metabolism due to its bioconversion in the liver, conjugated E2 is mostly excreted with bile, but some is hydrolyzed by gut microbiota, and reabsorbed in the intestines for various biological processes including bone remodeling [66,67]. Similar to the current results, Zhou [68] reported that adding Bacillus amyloliquefaciens increased serum E2 level in laying hens. We speculate that the increase of E2 level is attributed to the colonization and functional activities of Bacillus subtilis in the intestines.…”

Section: Discussionsupporting

confidence: 85%

Effects of Bacillus subtilis on Production Performance, Bone Physiological Property, and Hematology Indexes in Laying Hens

Zou

Jiang

et al. 2021

Animals

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This study was to investigate the effects of Bacillus subtilis on production performance and bone pathophysiological characteristics of layers. Twenty-four 48-week-old Lohmann Pink-shell laying hens were randomly divided into two groups: a basic diet (control) and the basic diet mixed with Bacillus subtilis (0.5 g/kg) for a 60-day trial. Statistically, independent-sample t-test was used to assess the treatment differences. The results showed that Bacillus subtilis supplementation improved the percent of marketable eggs (p < 0.05) with reduced numbers of broken and soft-shelled eggs but had no effects on egg weight, height of albumen, yolk color, and Haugh unit (p > 0.05). Bacillus subtilis supplement also elevated maximum load (p = 0.06), maximum stress (p = 0.01), stiffness (p < 0.01), and Young’s modulus (p < 0.01) but suppressed maximum strain (p = 0.06) in the femur. In addition, compared with control birds, phosphorous concentration (p < 0.01) was reduced in serum at day 61 but increased in the femur (p < 0.05) in Bacillus subtilis fed birds. Bacillus subtilis fed birds also had lower magnesium concentrations in both femur (p = 0.04) and feces (p = 0.09). Furthermore, Bacillus subtilis increased plasma estrogen concentration (p = 0.01) and femur TNF receptor superfamily member 11b (OPG) expression (p < 0.05) but reduced plasma IL-1 (p < 0.01) and TNF-α (p < 0.01) concentrations. These results indicate that Bacillus subtilis could be used as a health promotor to reduce overproduction-induced inflammation and associated bone damage and to increase marketable egg production. The data provide evidence for developing a management strategy to use Bacillus subtilis as a feed additive to improve marketable egg production and health and welfare status of laying hens.

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Section: Discussionsupporting

confidence: 85%

Effects of Bacillus subtilis on Production Performance, Bone Physiological Property, and Hematology Indexes in Laying Hens

Zou

Jiang

et al. 2021

Animals

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“…And there were several studies revealed that lower hatchability and higher embryo mortality were found when hens were fed mycotoxin-contaminated feed (Ebrahem et al 2014), because mycotoxins could residual in eggs (Mojgani et al 2020). Therefore, the improvement of hatching performance may be that dietary Pal-Pro reduced mycotoxins transferred to eggs and increased the level of reproductive hormones (Wang et al 2017;Zhou et al 2020). As researches on the effects of Pal and Pro on hatching performance of broiler breeders are very limited, further study is still necessary to investigate its effect on the animal.…”

Section: Discussionmentioning

confidence: 99%

Palygorskite combined probiotics improve the laying performance, hatching performance, egg quality, plasma antioxidative status, and immune response of broiler breeders

Deng

Xiong

Liu

et al. 2021

Italian Journal of Animal Science

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This experiment was conducted to investigate the effects of different supplementation levels of palygorskite and probiotics complex (Pal-Pro) on laying performance, hatching performance, egg quality, plasma antioxidative status, and immune response of broiler breeders. A total of 432 Xuefeng black-bone chickens (42-week-old) were randomly assigned into four treatments with six replicates of 18 hens. The broiler breeders were fed the basal diet supplemented with 0, 250, 500, and 750 mg/kg Pal-Pro for 8 weeks. The Pal-Pro supplementation linearly or quadratically increased (p < .05) laying rate, fertilisation rate, hatchability of fertile eggs, heath hatched chicks rate, eggshell thickness, yolk index, total antioxidant capacity, activities of total superoxide dismutase, catalase, glutathione peroxidase, and contents of immunoglobulins, interleukin-2, and tumour necrosis factor-a in plasma. With Pal-Pro supplementation increased, feed convention ratio during 5-8 and 1-8 week, embryo mortality, malondialdehyde linearly decreased (p < .05). This finding suggested that dietary supplementation with 750 mg/kg Pal-Pro administration could improve the antioxidative status and immunoglobulins contents in plasma of broiler breeders, which may contribute to an increase in broiler's laying rate, hatching performance, egg quality, such as eggshell thickness and yolk index. HIGHLIGHTS Dietary supplementation of Pal-Pro decreased the feed conversion ratio and embryo mortality of broiler breeders. Dietary supplementation of Pal-Pro improved the laying rate, fertility, hatchability of fertile eggs, and yolk index of broiler breeders. Dietary supplementation of Pal-Pro enhanced the antioxidant capacity and the level of immunoglobulins in the plasma.

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“…Adding Bacillus sp. to the diet of hens can increase the eggshell thickness and eggshell strength, improve the quality of eggshell, reduce the rate of broken eggs, and improve economic bene ts of farms [36,40]. Similarly, it was also reported that addition of Bacillus subtilus to the diet improved the Haugh unit and protein index signi cantly, and the thickness of egg shell was also improved [37].…”

Section: Egg Qualitymentioning

confidence: 90%

Effect of Bacillus velezensis substituting for feed antibiotics on the production, blood biochemistry and egg quality indices of laying hens

Miao

Wei

Khalid

et al. 2020

Preprint

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Background The excessive use of antibiotics in livestock feed industry caused inevitable side effect of microbial resistance. Beside this residual antibiotics in animal derived food stuff imposed serious health problems for humans. So this study aimed to investigate the potential use of Bacillus velezensis to substitute antibiotics for poultry production. A total of 468, 49-week-old Hy-Line Brown chickens, were randomly divided into four groups as control group (regular diet), experiment group I (0.1% B. veleznesis), experiment group II (0.2% B. veleznesis), and antibiotic group (50 mg/kg flavomycin), with three replicates per group and trial period consisted on 42 days.Results The results showed that, compared with control group, the average egg production rate and daily feed intake of experimental groups I and II increased significantly (P < 0.05), while the average egg weight was increased in experimental group II as compared to I. (P < 0.01). The feed conversion ratio was decreased (P > 0.05) in group II. Egg quality parameters such as yolk weight of the experiment group II was increased, but that of the antibiotic group and experiment group I was decreased, neither significant (P > 0.05). Moreover, the eggshell strength, yolk color, albumen height and Haugh unit were significantly increased (P < 0.05). Compared with the control group, probiotic groups can increase the progesterone and motilin (P > 0.05) but decrease the secretin and cholecystokinin in the blood plasma (P > 0.05).Conclusion This study suggested that B. velezensis can substitute in-feed-antibiotics and improved most of the study parameters significantly. Which suggested that B. velezensis has potential future application value to replace the feed antibiotics.

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Bacillus amyloliquefaciens BLCC1-0238 Can Effectively Improve Laying Performance and Egg Quality Via Enhancing Immunity and Regulating Reproductive Hormones of Laying Hens

Cited by 33 publications

References 36 publications

Effects of Bacillus subtilis on Production Performance, Bone Physiological Property, and Hematology Indexes in Laying Hens

Effects of Bacillus subtilis on Production Performance, Bone Physiological Property, and Hematology Indexes in Laying Hens

Palygorskite combined probiotics improve the laying performance, hatching performance, egg quality, plasma antioxidative status, and immune response of broiler breeders

Effect of Bacillus velezensis substituting for feed antibiotics on the production, blood biochemistry and egg quality indices of laying hens

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