Effect of feed supplement modifications using keratinolytic bacteria on growth performance and meat chemical composition of domesticated quail
This study was carried out to determine a novel strategy for utilization of feather in poultry feed, along with the addition of immobilized keratinolytic Bacillus sp. SLII–1 as a supplement. Eighty male quails (day–old) were randomly divided into four diet groups, with each group receiving four diff...
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Published in | Indian journal of animal sciences Vol. 93; no. 10 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Indian Council of Agricultural Research
01.10.2023
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Abstract | This study was carried out to determine a novel strategy for utilization of feather in poultry feed, along with the addition of immobilized keratinolytic Bacillus sp. SLII–1 as a supplement. Eighty male quails (day–old) were randomly divided into four diet groups, with each group receiving four different treatments. The results showed that Bacillus sp. SLII–I exhibited keratinolytic potential by increasing the protein solubility of feather meal in a liquid medium. The immobilization of Bacillus sp. SLII–I using 3% sodium alginate and 0.8% chitosan composition occurred at approximately 4.05×107 CFU/g, while the viable cells were maintained in acidic medium (pH 3.0) at around 3.95×107 CFU/g. Quails aged 19–33 days, fed with feather meal and Bacillus sp. SLII–1, demonstrated significantly higher weight gain and lower feed conversion ratio (FCR) as compared to those treated with feather meal without supplements. There were no significant differences in the values of dry matter, ash, and crude protein content of the meat among the quails in all the treatments. Therefore, feed supplemented with immobilized bacteria and feather waste can be utilized as an alternative diet for quails. This way, the use of feed materials can be reduced, and at the same time, chicken feather waste can be effectively utilized. |
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AbstractList | This study was carried out to determine a novel strategy for utilization of feather in poultry feed, along with the addition of immobilized keratinolytic Bacillus sp. SLII–1 as a supplement. Eighty male quails (day–old) were randomly divided into four diet groups, with each group receiving four different treatments. The results showed that Bacillus sp. SLII–I exhibited keratinolytic potential by increasing the protein solubility of feather meal in a liquid medium. The immobilization of Bacillus sp. SLII–I using 3% sodium alginate and 0.8% chitosan composition occurred at approximately 4.05×107 CFU/g, while the viable cells were maintained in acidic medium (pH 3.0) at around 3.95×107 CFU/g. Quails aged 19–33 days, fed with feather meal and Bacillus sp. SLII–1, demonstrated significantly higher weight gain and lower feed conversion ratio (FCR) as compared to those treated with feather meal without supplements. There were no significant differences in the values of dry matter, ash, and crude protein content of the meat among the quails in all the treatments. Therefore, feed supplemented with immobilized bacteria and feather waste can be utilized as an alternative diet for quails. This way, the use of feed materials can be reduced, and at the same time, chicken feather waste can be effectively utilized. |
Author | PRASETYO, ENDRY NUGROHO HIDAYAT, MUHAMMAD TAUFIQ KOENTJORO, MAHARANI PERTIWI |
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Cites_doi | 10.1155/2023/8484835 10.1063/1.4985413 10.3390/microorganisms10010093 10.1186/s43141-021-00149-8 10.3390/microorganisms11020456 10.1007/s11947-023-03007-2 10.3390/polym13111896 10.1016/j.fhfh.2021.100027 10.3390/fermentation9020128 10.3390/md19050264 10.1016/j.vas.2021.100216 10.1016/j.heliyon.2020.e03541 10.37496/rbz4920190036 10.1007/s00253-020-10632-w 10.3389/fvets.2021.767802 10.1016/j.scp.2020.100267 10.1016/j.psep.2020.01.014 10.1186/s13068-023-02308-0 10.1002/jobm.201800434 10.1016/j.sjbs.2018.10.011 10.1088/1755-1315/462/1/012003 10.33259/JLivestSci.2020.33-39 10.1016/j.foodchem.2018.09.090 10.3390/catal10020184 10.3390/fermentation9020096 10.1002/app.52626 10.1186/s43141-021-00207-1 10.1016/B978-0-12-813280-7.00007-4 10.1016/j.ibiod.2020.104968 10.5433/1679-0359.2019v40n6Supl3p3617 |
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SubjectTerms | Bacillus sp. SLII–I, Coturnix japonica, Feather, Feed Supplement, Immobilization, Keratinase |
Title | Effect of feed supplement modifications using keratinolytic bacteria on growth performance and meat chemical composition of domesticated quail |
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