Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickens
Objective Animal feed companies and researchers are currently embarking on quests for feed additives that could combat the pathogens while promoting growth as well as maintaining quality products. The current study aimed to evaluate the effects of onion extracts on growth performance, carcass qualit...
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| Format: | Article |
| Language: | English |
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Asian-Australasian Association of Animal Production Societies
2023-07-01
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| Series: | Animal Bioscience |
| Subjects: | |
| Online Access: | http://www.animbiosci.org/upload/pdf/ab-22-0399.pdf |
| _version_ | 1797787288580653056 |
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| author | E. Malematja T. G. Manyelo J. W. Ng’ambi M. F. D. Nemauluma S. D. Kolobe |
| author_facet | E. Malematja T. G. Manyelo J. W. Ng’ambi M. F. D. Nemauluma S. D. Kolobe |
| author_sort | E. Malematja |
| collection | DOAJ |
| description | Objective Animal feed companies and researchers are currently embarking on quests for feed additives that could combat the pathogens while promoting growth as well as maintaining quality products. The current study aimed to evaluate the effects of onion extracts on growth performance, carcass quality, and bone morphometrics of broiler chickens. Methods A total number of 200 one-day-old unsexed Ross 308 broiler chicks were assigned to 5 treatment groups, replicated 4 times. Each replicate (pens) held 10 chickens in a completely randomized design. The experimental diets were then randomly allotted to the pens which act as experimental units. The isoenergetic and isonitrogenous diets were formulated by including onion extracts at 0, 5, 10, 15, or 25 g/kg in a complete broiler diet. Feed intake, and body weight, were recorded then used to calculate feed conversion ratio. At the end of the experiment (42 days), four chickens from each pen were randomly selected for slaughter for carcass, bone morphology and sensory evaluation. Results Results showed that onion extract supplementation did not affect (p>0.05) growth performances and meat sensory evaluation. However, there was a significantly increased (p<0.05) meat shear force in groups receiving onion extracts dietary treatments. Furthermore, onion extracts improved (p<0.05) bone morphology of broiler chickens in terms of weight, diameter, calcium, and phosphorous contents. Conclusion In conclusion, onion extracts can be safely included in a commercial broiler diet as a growth promoter without causing adverse effects on growth performance traits and carcass quality in chickens. Onion extract supplementation improved tibia bone growth and strength in broiler chickens. |
| first_indexed | 2024-03-13T01:19:52Z |
| format | Article |
| id | doaj.art-d8cd5e564a234cd4ad65c30e72b9c483 |
| institution | Directory Open Access Journal |
| issn | 2765-0189 2765-0235 |
| language | English |
| last_indexed | 2024-03-13T01:19:52Z |
| publishDate | 2023-07-01 |
| publisher | Asian-Australasian Association of Animal Production Societies |
| record_format | Article |
| series | Animal Bioscience |
| spelling | doaj.art-d8cd5e564a234cd4ad65c30e72b9c4832023-07-05T04:51:53ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352023-07-013671075108210.5713/ab.22.039925021Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickensE. Malematja0T. G. Manyelo1J. W. Ng’ambi2M. F. D. Nemauluma3S. D. Kolobe4 Department of Agricultural Economics and Animal Production, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa Department of Agricultural Economics and Animal Production, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa Department of Agricultural Economics and Animal Production, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa Department of Agricultural Economics and Animal Production, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa Department of Agricultural Economics and Animal Production, University of Limpopo, Private Bag X1106, Sovenga 0727, South AfricaObjective Animal feed companies and researchers are currently embarking on quests for feed additives that could combat the pathogens while promoting growth as well as maintaining quality products. The current study aimed to evaluate the effects of onion extracts on growth performance, carcass quality, and bone morphometrics of broiler chickens. Methods A total number of 200 one-day-old unsexed Ross 308 broiler chicks were assigned to 5 treatment groups, replicated 4 times. Each replicate (pens) held 10 chickens in a completely randomized design. The experimental diets were then randomly allotted to the pens which act as experimental units. The isoenergetic and isonitrogenous diets were formulated by including onion extracts at 0, 5, 10, 15, or 25 g/kg in a complete broiler diet. Feed intake, and body weight, were recorded then used to calculate feed conversion ratio. At the end of the experiment (42 days), four chickens from each pen were randomly selected for slaughter for carcass, bone morphology and sensory evaluation. Results Results showed that onion extract supplementation did not affect (p>0.05) growth performances and meat sensory evaluation. However, there was a significantly increased (p<0.05) meat shear force in groups receiving onion extracts dietary treatments. Furthermore, onion extracts improved (p<0.05) bone morphology of broiler chickens in terms of weight, diameter, calcium, and phosphorous contents. Conclusion In conclusion, onion extracts can be safely included in a commercial broiler diet as a growth promoter without causing adverse effects on growth performance traits and carcass quality in chickens. Onion extract supplementation improved tibia bone growth and strength in broiler chickens.http://www.animbiosci.org/upload/pdf/ab-22-0399.pdfbone morphologybroiler chickenscarcass characteristicsgrowth performanceonionsensory evaluation |
| spellingShingle | E. Malematja T. G. Manyelo J. W. Ng’ambi M. F. D. Nemauluma S. D. Kolobe Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickens Animal Bioscience bone morphology broiler chickens carcass characteristics growth performance onion sensory evaluation |
| title | Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickens |
| title_full | Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickens |
| title_fullStr | Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickens |
| title_full_unstemmed | Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickens |
| title_short | Effects of onion extracts () inclusion in diets on growth performance, carcass characteristics, and bone morphometric of broiler chickens |
| title_sort | effects of onion extracts inclusion in diets on growth performance carcass characteristics and bone morphometric of broiler chickens |
| topic | bone morphology broiler chickens carcass characteristics growth performance onion sensory evaluation |
| url | http://www.animbiosci.org/upload/pdf/ab-22-0399.pdf |
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