Main Article Content
Abstract
This study aimed to determine broilers' final body weight and carcass quality given herbs Temulawak (Curcuma zanthorrhiza) flour and Kencur (Kaempferia galangal) flour and zinc mineral. The research design was completely randomized with five treatments and four replications, each containing three broilers aged one day. The treatments (P) given included P1 (basal ration), P2 (basal ration + 2.5% Temulawak flour + 120 ppm mineral zinc), P3 (basal ration + 0.4% Kencur flour + 120 ppm mineral inc), P4 (basal ration + 2.5% Temulawak flour + 0.4% Kencur flour), and P5 (basal ration + 2.5% Temulawak flour + 0.4% Kencur flour + 120 ppm mineral zinc). The analysis of variance showed that the treatment had a significant effect (P<0.05) on final body weight, carcass weight, percentage, and carcass. But no significant effect (P>0.05), boneless percentage, bone percentage, meat and bone ratio, and abdominal fat. The combination of Kencur and zinc in the ration (P3) showed the best results in improving final body weight and carcass quality, including carcass weight. The provision of Temulawak flour and Kencur flour and the addition of zinc minerals to the feed did not negatively affect carcass quality.
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References
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- Adriani L. and A. Mushawwir. 2020. Correlation between blood parameters, physiological and liver gene expression levels in native laying hens under heat stress. IOP Conf. Series: Earth and Environmental Science 466 (7): 1-7. DOI: https//doi.org/10.1088/1755-1315/788/1/012091
- Adriani L., A. Mushawwir, C. Kumalasari, L. Nurlaeni, R. Lesmana and U. Rosani. 2021. Improving blood protein and albumin levels using dried probiotic yogurt in broiler chicken. Jordan Journal of Biological Sciences, 14(5): 1021-1024. DOI:https://doi.org/10.54319/jjbs/140521
- Alkhalf, A., M. Alhaj, and I. Al-Homidan. 2010. Influence of probiotic supplementation on blood parameters and growth performance in broiler chickens. Saudi Journal of Biological Sciences, 17(3), 219–225. DOI: https://doi.org/10.1016/j.sjbs.2010.04.005
- Andriyono, R. I. 2019. Kaempferia galanga L. sebagai anti-inflamasi dan analgetik. Jurnal Kesehatan, 10(3): 495. DOI: https://doi.org/10.26630/jk.v10i3.1458
- Dinana, A., D. Latipudin, D. Darwis dan A. Mushawwir. 2019. Profil enzim transaminase ayam ras petelur yang diberi kitosan iradiasi. Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan. 1 (1):6-15. DOI : http://dx.doi.org/10.24198/jnttip.v1i1.25425
- Hafid, H., R.E. Gurnadi, R. Priyanto, and A. Saefuddin. 2010. Identifications of carcass characteristic for estimating the composition of beef carcass. Journal of the Indonesian Tropical Animal Agriculture, 35(1): 22–26. DOI: https://doi.org/10.14710/jitaa.35.1.22-26
- Hafid, H., Rahman, Nuraini, Y. Wati, Inderawati, S.H. Ananda, and L. Ba’A. 2018. Production of broiler chicken carcass fed on rice bran biomass in different marketed ages. IOP Conference Series: Earth and Environmental Science, 209(1). DOI: https://doi.org/10.1088/1755-1315/209/1/012008
- Herlina, B., N. Suningsih, dan Setiyani. 2021. Performa itik peking (Anas plathyrinchos) yang diberi penambahan tepung kencur (Kaemferia galanga L) dalam ransum. Jurnal Ilmiah Peternakan Terpadu, 9(1): 19–27.
- Hidayat, M.N. 2022a. Bobot badan akhir dan persentase boneless broiler yang diberikan bungkil inti sawit sebagai pakan subtitusi dedak padi . Wahana Peternakan, 6(3): 159-166. DOI: https:// doi.org/10.37090/jwputb.v6i3.623
- Hidayat, M.N. 2022b. Potensi susu bubuk afkir sebagai aditif pakan terhadap bobot badan akhir dan kualitas karkas broiler. Jurnal Peternakan Lokal, 4(2): 52-59.
- Hidayat, C., Sumiati, A. Jayanegara, and E. Wina. 2020. Effect of zinc on broilers' immune response and production performance: A meta-analysis. Asian-Australasian Journal of Animal Sciences, 33(3): 465–479. DOI: https://doi.org/10.5713/ajas.19.0146
- Hidayat, M. N., Syam, J., and Irmawaty. 2021. Bobot relatif organ pencernaan dan limfoid ayam broiler yang diberikan temulawak, kencur, dan mineral zink. Jurnal Ilmu dan Teknologi Peternakan Tropis, 8(3): 296-303. DOI: https://doi.org/10.33772/jitro.v8i3.17445
- Jiwandini A., H. Burhanudin dan A. Mushawwir. 2020. Kadar enzim transaminase (sgpt, sgot) dan gamma glutamyl transpeptidase (γ-gt) pada ayam petelur fase layer yang diberi ekstrak pegagan (Centella asiatica). Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan. 2(2):112-119. DOI: https://doi.org/10.24198/jnttip.v2i2.27389
- Kamil K. A., D. Latipudin, A. Mushawwir, D. Rahmat and R. L. Balia. 2020. The effects of ginger volatile oil (GVO) on the metabolic profile of glycolytic pathway, free radical and antioxidant activities of heat-stressed cihateup duck. International Journal on Advanced Science, Engineering and Information Technology 10:1228-1233. DOI: 10.1817/ijaseit.10.3.11117
- Kharazi A.Y., D. Latipudin, N. Suwarno, T. Puspitasari, N. Nuryanthi and A. Mushawwir. 2022. Lipogenesis in Sentul chickens of starter phase inhibited by irradiated chitosan. IAP Conference Proceedings 1001: 1-7. DOI: https//doi.org/:10.1088/1755-1315/1001/1/012021
- Mushawwir, A., N. Suwarno dan R. Permana. 2020a. Profil total lemak dan protein hati puyuh fase grower dan layer. Jurnal Ilmu dan Industri Peternakan. 6(2):65-76. DOI: http://dx.doi.org/10.24252/jiip.v6i2.18312
- Mushawwir, A., A.A. Yulianti dan N. Suwarno. 2020b. Histologi liver burung puyuh dengan pemberian minyak atsiri bawang putih. Jurnal Ilmu dan Teknologi Peternakan. 8(1):1-7. DOI: http://dx.doi.org/10.24252/jitp.v8i1.32758
- Mushawwir, A., N. Suwarno dan D. Latipudin. 2020c. Profil metabolik jalur glikogenolisis puyuh dalam kondisi stres panas dengan pemberian diallyl n-sulfida¬ (Dn-S) organic. Jurnal Galung Tropika. 9:48-59. DOI: http://dx.doi.org/10.31850/jgt.v9i1.519
- Mushawwir, A., N. Suwarno dan R. Permana. 2020d. Profil non-esterified fatty acids (NEFA) dan trigliserida ayam sentul pada sistem pemeliharaan berbeda. Jurnal Ilmu dan Industri Peternakan. 6:14-24. DOI: https//doi.org/10.24252/jiip.v6i1.14445
- Mushawwir, A., R. Permana, D. Darwin, T. Puspitasari, D.S. Pangerteni, N. Nuryanthi and N. Suwarno. 2021c. Enhancement of the liver histologic of broiler induced by irradiated chitosan (IC). IAP Conference Proceedings 2381: 0200461-0200467. DOI: 10.1063/5.0066271
- Nurmalia, V. R., D. Rusmana dan A. Mushawwir. 2020. Kadar glukosa dan trigliserida ayam ras petelur fase layer yang diberi ransum mengandung ekstrak pegagan (Centella asiatica). Jurnl Ilmu Nutrisi Ternak Tropis dan Ilmu Pakan. 2(4):217-224. DOI: https//doi.org/10.24198/jnttip.v2i4.27396.
- Patriani, P. 2019. Percentage of boneless, bone, and percentage of boneless, bone, and meat-bone ratio of broiler chicken in various slaughter weight. Jurnal Galung Tropika, 8(3), 190–196. DOI: https://doi.org/10.31850/jgt.v8i3.511
- Ramadhani, D. S., Handarini, R., & Wahyuni, D. (2021). Pengaruh penambahan tepung kencur (Kaempferia galanga C) dalam pakan komersil terhadap produktivitas telur burung puyuh (coturnix-cortunix japonica). Jurnal Peternakan Nusantara, 7(1): 33. DOI: https://doi.org/10.30997/jpn.v7i1.4216
- Rahmania H., R. Permana, D. Latipudin, N. Suwarno, T. Puspitasari, N. Nuryanthi and A. Mushawwir. 2022. Enhancement of the liver status of Sentul chickens from the starter phase induced by irradiated chitosan. IAP Conference Proceedings 1001: 1-7. DOI: https//doi.org/10.1088/1755-1315/1001/1/012007
- Regar, M. N., R. Mutia, S.D. Widhyari, dan Y.H.S. Kowel. 2013. Pemberian ransum kombinasi herbal dengan mineral zink terhadap performans ayam broiler yang diinfeksi Escherichia coli. Zootec, 33(1), 35–40.
- Ripon, M. M. R., M.H. Rashid, M. M. Rahman, M. F. Ferdous, M. S. Arefin, A. A. Sani, and K. Rafiq. 2019. Dose-dependent response to phytobiotic supplementation in feed on growth, hematology, intestinal pH, and gut bacterial load in broiler chicken. Journal of Advanced Veterinary and Animal Research, 6(2): 253–259. DOI: https://doi.org/10.5455/javar.2019.f341
- Sanda, M. E., & Ezeibe, M. C. O. B. M. (2015). Effects of vitamins A , C and E and selenium on immune response of broilers to newcastle disease ( ND ) vaccine. Journal of Agriculture and Veterinary Science , 8(7): 13–15. DOI: https://doi.org/10.9790/2380-08721315
- Sari, M. L., Lubis, F. N. L., & Jaya, L. D. (2014). Pengaruh pemberian asap cair melalui air minum terhadap kualitas karkas ayam broiler. Jurnal Agripet, 14(1): 71–75. DOI: https://doi.org/10.17969/agripet.v14i1.1208
- Silalahi, M. 2019. Kencur (Kaempferia galanga) dan bioaktivitasnya. Jurnal Pendidikan Informatika dan Sains, 8(1):127. DOI: https://doi.org/10.31571/saintek.v8i1.1178
- Siregar R.H., D. Latipudin dan A. Mushawwir. 2020. Profil lipid darah ayam ras petelur yang diberi kitosan iradiasi. Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan. 2(1):1-8. DOI : 10.24198/jnttip.v2i1.25707
- Sulistyoningsih, M. (2014). Optimalisasi produksi broiler melalui suplementasi herbal terhadap persentase karkas dan kadar trigliserida darah. Bioma, 3(1): 78–93.
- Suwarno, N. dan A. Mushawwir. 2019. Model prediksi metabolit melalui jalur glikogenolisis berdasarkan fluktuasi mikroklimat lingkungan kandang sapi perah. Jurnal Ilmu dan Industri Peternakan. 5 (2):77-86. DOI: https://dx.doi.org/10.24252/jiip.v5i2.11884
- Tahalele, Y., M.E.R. Montong, F.J. Nangoy, dan C. L. K. Sarajar. 2018. Pengaruh penambahan ramuan herbal pada air minum terhadap persentase karkas, persentase lemak abdomen dan persentase hati pada ayam kampung super. Zootec, 38(1): 160. https://doi.org/10.35792/zot.38.1.2018.18630
- Tanuwiria U.H. and A. Mushawwir. 2020a. Hematological and antioxidants responses of dairy cow fed with a combination of feed and duckweed (Lemna minor) as a mixture for improving milk biosynthesis. Biodiversitas. 21:4741-4746. DOI https://doi.org/10.13057/biodiv/ d211038
- Tanuwiria U.H., I. Susilawati, D. S. Tasrifin, L. B. Salman and A. Mushawwir. 2022. Behavioral, physiological, and blood biochemistry of Friesian Holstein dairy cattle at different altitudes in West Java, Indonesia. Biodiversitas. 23(1): 533-539. DOI:https//doi.org/ 10.13057/biodiv/d230157
- Tanuwiria U.H., D. Tasrifin dan A. Mushawwir. 2020b. Respon gamma glutamil transpeptidase (-gt) dan kadar glukosa sapi perah pada ketinggian tempat (altitude) yang berbeda. Jurnal Ilmu dan Industri Peternakan. 6:25-34. DOI: https/doi.org/ 10.24252/jiip.v6i1.14446
- Wijayanti, A. D., A. W. Rosetyadewi, I. Fitriana, dan A. M. Pratama. 2021. Pengimbuhan fitobiotik dan probiotik meningkatkan rasio konversi pakan dan menurunkan persentase lemak abdomen ayam pedaging. Jurnal Veteriner, 22(3): 303–308. DOI: https://doi.org/10.19087/jveteriner.2021.22.3.303
References
Abbas, M., F. Saeed, F.M. Anjum, M. Afzaal, T. Tufail, M. S. Bashir, and H.A.R. Suleria. 2017. Natural polyphenols: An overview. International Journal of Food Properties, 20(8): 1689–1699. DOI: https://doi.org/10.1080/10942912.2016.1220393
Adriani L. and A. Mushawwir. 2020. Correlation between blood parameters, physiological and liver gene expression levels in native laying hens under heat stress. IOP Conf. Series: Earth and Environmental Science 466 (7): 1-7. DOI: https//doi.org/10.1088/1755-1315/788/1/012091
Adriani L., A. Mushawwir, C. Kumalasari, L. Nurlaeni, R. Lesmana and U. Rosani. 2021. Improving blood protein and albumin levels using dried probiotic yogurt in broiler chicken. Jordan Journal of Biological Sciences, 14(5): 1021-1024. DOI:https://doi.org/10.54319/jjbs/140521
Alkhalf, A., M. Alhaj, and I. Al-Homidan. 2010. Influence of probiotic supplementation on blood parameters and growth performance in broiler chickens. Saudi Journal of Biological Sciences, 17(3), 219–225. DOI: https://doi.org/10.1016/j.sjbs.2010.04.005
Andriyono, R. I. 2019. Kaempferia galanga L. sebagai anti-inflamasi dan analgetik. Jurnal Kesehatan, 10(3): 495. DOI: https://doi.org/10.26630/jk.v10i3.1458
Dinana, A., D. Latipudin, D. Darwis dan A. Mushawwir. 2019. Profil enzim transaminase ayam ras petelur yang diberi kitosan iradiasi. Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan. 1 (1):6-15. DOI : http://dx.doi.org/10.24198/jnttip.v1i1.25425
Hafid, H., R.E. Gurnadi, R. Priyanto, and A. Saefuddin. 2010. Identifications of carcass characteristic for estimating the composition of beef carcass. Journal of the Indonesian Tropical Animal Agriculture, 35(1): 22–26. DOI: https://doi.org/10.14710/jitaa.35.1.22-26
Hafid, H., Rahman, Nuraini, Y. Wati, Inderawati, S.H. Ananda, and L. Ba’A. 2018. Production of broiler chicken carcass fed on rice bran biomass in different marketed ages. IOP Conference Series: Earth and Environmental Science, 209(1). DOI: https://doi.org/10.1088/1755-1315/209/1/012008
Herlina, B., N. Suningsih, dan Setiyani. 2021. Performa itik peking (Anas plathyrinchos) yang diberi penambahan tepung kencur (Kaemferia galanga L) dalam ransum. Jurnal Ilmiah Peternakan Terpadu, 9(1): 19–27.
Hidayat, M.N. 2022a. Bobot badan akhir dan persentase boneless broiler yang diberikan bungkil inti sawit sebagai pakan subtitusi dedak padi . Wahana Peternakan, 6(3): 159-166. DOI: https:// doi.org/10.37090/jwputb.v6i3.623
Hidayat, M.N. 2022b. Potensi susu bubuk afkir sebagai aditif pakan terhadap bobot badan akhir dan kualitas karkas broiler. Jurnal Peternakan Lokal, 4(2): 52-59.
Hidayat, C., Sumiati, A. Jayanegara, and E. Wina. 2020. Effect of zinc on broilers' immune response and production performance: A meta-analysis. Asian-Australasian Journal of Animal Sciences, 33(3): 465–479. DOI: https://doi.org/10.5713/ajas.19.0146
Hidayat, M. N., Syam, J., and Irmawaty. 2021. Bobot relatif organ pencernaan dan limfoid ayam broiler yang diberikan temulawak, kencur, dan mineral zink. Jurnal Ilmu dan Teknologi Peternakan Tropis, 8(3): 296-303. DOI: https://doi.org/10.33772/jitro.v8i3.17445
Jiwandini A., H. Burhanudin dan A. Mushawwir. 2020. Kadar enzim transaminase (sgpt, sgot) dan gamma glutamyl transpeptidase (γ-gt) pada ayam petelur fase layer yang diberi ekstrak pegagan (Centella asiatica). Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan. 2(2):112-119. DOI: https://doi.org/10.24198/jnttip.v2i2.27389
Kamil K. A., D. Latipudin, A. Mushawwir, D. Rahmat and R. L. Balia. 2020. The effects of ginger volatile oil (GVO) on the metabolic profile of glycolytic pathway, free radical and antioxidant activities of heat-stressed cihateup duck. International Journal on Advanced Science, Engineering and Information Technology 10:1228-1233. DOI: 10.1817/ijaseit.10.3.11117
Kharazi A.Y., D. Latipudin, N. Suwarno, T. Puspitasari, N. Nuryanthi and A. Mushawwir. 2022. Lipogenesis in Sentul chickens of starter phase inhibited by irradiated chitosan. IAP Conference Proceedings 1001: 1-7. DOI: https//doi.org/:10.1088/1755-1315/1001/1/012021
Mushawwir, A., N. Suwarno dan R. Permana. 2020a. Profil total lemak dan protein hati puyuh fase grower dan layer. Jurnal Ilmu dan Industri Peternakan. 6(2):65-76. DOI: http://dx.doi.org/10.24252/jiip.v6i2.18312
Mushawwir, A., A.A. Yulianti dan N. Suwarno. 2020b. Histologi liver burung puyuh dengan pemberian minyak atsiri bawang putih. Jurnal Ilmu dan Teknologi Peternakan. 8(1):1-7. DOI: http://dx.doi.org/10.24252/jitp.v8i1.32758
Mushawwir, A., N. Suwarno dan D. Latipudin. 2020c. Profil metabolik jalur glikogenolisis puyuh dalam kondisi stres panas dengan pemberian diallyl n-sulfida¬ (Dn-S) organic. Jurnal Galung Tropika. 9:48-59. DOI: http://dx.doi.org/10.31850/jgt.v9i1.519
Mushawwir, A., N. Suwarno dan R. Permana. 2020d. Profil non-esterified fatty acids (NEFA) dan trigliserida ayam sentul pada sistem pemeliharaan berbeda. Jurnal Ilmu dan Industri Peternakan. 6:14-24. DOI: https//doi.org/10.24252/jiip.v6i1.14445
Mushawwir, A., R. Permana, D. Darwin, T. Puspitasari, D.S. Pangerteni, N. Nuryanthi and N. Suwarno. 2021c. Enhancement of the liver histologic of broiler induced by irradiated chitosan (IC). IAP Conference Proceedings 2381: 0200461-0200467. DOI: 10.1063/5.0066271
Nurmalia, V. R., D. Rusmana dan A. Mushawwir. 2020. Kadar glukosa dan trigliserida ayam ras petelur fase layer yang diberi ransum mengandung ekstrak pegagan (Centella asiatica). Jurnl Ilmu Nutrisi Ternak Tropis dan Ilmu Pakan. 2(4):217-224. DOI: https//doi.org/10.24198/jnttip.v2i4.27396.
Patriani, P. 2019. Percentage of boneless, bone, and percentage of boneless, bone, and meat-bone ratio of broiler chicken in various slaughter weight. Jurnal Galung Tropika, 8(3), 190–196. DOI: https://doi.org/10.31850/jgt.v8i3.511
Ramadhani, D. S., Handarini, R., & Wahyuni, D. (2021). Pengaruh penambahan tepung kencur (Kaempferia galanga C) dalam pakan komersil terhadap produktivitas telur burung puyuh (coturnix-cortunix japonica). Jurnal Peternakan Nusantara, 7(1): 33. DOI: https://doi.org/10.30997/jpn.v7i1.4216
Rahmania H., R. Permana, D. Latipudin, N. Suwarno, T. Puspitasari, N. Nuryanthi and A. Mushawwir. 2022. Enhancement of the liver status of Sentul chickens from the starter phase induced by irradiated chitosan. IAP Conference Proceedings 1001: 1-7. DOI: https//doi.org/10.1088/1755-1315/1001/1/012007
Regar, M. N., R. Mutia, S.D. Widhyari, dan Y.H.S. Kowel. 2013. Pemberian ransum kombinasi herbal dengan mineral zink terhadap performans ayam broiler yang diinfeksi Escherichia coli. Zootec, 33(1), 35–40.
Ripon, M. M. R., M.H. Rashid, M. M. Rahman, M. F. Ferdous, M. S. Arefin, A. A. Sani, and K. Rafiq. 2019. Dose-dependent response to phytobiotic supplementation in feed on growth, hematology, intestinal pH, and gut bacterial load in broiler chicken. Journal of Advanced Veterinary and Animal Research, 6(2): 253–259. DOI: https://doi.org/10.5455/javar.2019.f341
Sanda, M. E., & Ezeibe, M. C. O. B. M. (2015). Effects of vitamins A , C and E and selenium on immune response of broilers to newcastle disease ( ND ) vaccine. Journal of Agriculture and Veterinary Science , 8(7): 13–15. DOI: https://doi.org/10.9790/2380-08721315
Sari, M. L., Lubis, F. N. L., & Jaya, L. D. (2014). Pengaruh pemberian asap cair melalui air minum terhadap kualitas karkas ayam broiler. Jurnal Agripet, 14(1): 71–75. DOI: https://doi.org/10.17969/agripet.v14i1.1208
Silalahi, M. 2019. Kencur (Kaempferia galanga) dan bioaktivitasnya. Jurnal Pendidikan Informatika dan Sains, 8(1):127. DOI: https://doi.org/10.31571/saintek.v8i1.1178
Siregar R.H., D. Latipudin dan A. Mushawwir. 2020. Profil lipid darah ayam ras petelur yang diberi kitosan iradiasi. Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan. 2(1):1-8. DOI : 10.24198/jnttip.v2i1.25707
Sulistyoningsih, M. (2014). Optimalisasi produksi broiler melalui suplementasi herbal terhadap persentase karkas dan kadar trigliserida darah. Bioma, 3(1): 78–93.
Suwarno, N. dan A. Mushawwir. 2019. Model prediksi metabolit melalui jalur glikogenolisis berdasarkan fluktuasi mikroklimat lingkungan kandang sapi perah. Jurnal Ilmu dan Industri Peternakan. 5 (2):77-86. DOI: https://dx.doi.org/10.24252/jiip.v5i2.11884
Tahalele, Y., M.E.R. Montong, F.J. Nangoy, dan C. L. K. Sarajar. 2018. Pengaruh penambahan ramuan herbal pada air minum terhadap persentase karkas, persentase lemak abdomen dan persentase hati pada ayam kampung super. Zootec, 38(1): 160. https://doi.org/10.35792/zot.38.1.2018.18630
Tanuwiria U.H. and A. Mushawwir. 2020a. Hematological and antioxidants responses of dairy cow fed with a combination of feed and duckweed (Lemna minor) as a mixture for improving milk biosynthesis. Biodiversitas. 21:4741-4746. DOI https://doi.org/10.13057/biodiv/ d211038
Tanuwiria U.H., I. Susilawati, D. S. Tasrifin, L. B. Salman and A. Mushawwir. 2022. Behavioral, physiological, and blood biochemistry of Friesian Holstein dairy cattle at different altitudes in West Java, Indonesia. Biodiversitas. 23(1): 533-539. DOI:https//doi.org/ 10.13057/biodiv/d230157
Tanuwiria U.H., D. Tasrifin dan A. Mushawwir. 2020b. Respon gamma glutamil transpeptidase (-gt) dan kadar glukosa sapi perah pada ketinggian tempat (altitude) yang berbeda. Jurnal Ilmu dan Industri Peternakan. 6:25-34. DOI: https/doi.org/ 10.24252/jiip.v6i1.14446
Wijayanti, A. D., A. W. Rosetyadewi, I. Fitriana, dan A. M. Pratama. 2021. Pengimbuhan fitobiotik dan probiotik meningkatkan rasio konversi pakan dan menurunkan persentase lemak abdomen ayam pedaging. Jurnal Veteriner, 22(3): 303–308. DOI: https://doi.org/10.19087/jveteriner.2021.22.3.303