Evaluation of the replacement of corn with sweet potato in the feeding of laying hens in an organic production system
The article aims to evaluate the productive response of birds when fed with sweet potato meal as a substitute for corn meal. The experiment took place in the field in two rural properties with organic certification in the region of Londrina-PR. Forty-eight red mixed breed laying birds were used. They were evaluated for production parameters, external and internal egg quality standards during 4 cycles of 21 days. For the productive parameters such as laying rate, feed conversion and egg mass, there was a statistical difference (p<0.05) with a superior result for corn bran. For external egg quality variables, no statistical differences were found (p<0.05) between treatments. For the parameter husk weight, a statistical difference was found with a superior result for the treatment with corn bran. For the analysis of internal egg quality, a significant difference was found for corn bran for the variables height, weight and yolk diameter. For albumen height, yolk color, Haugh unit, yolk percentage, albumen percentage, yolk index, yolk and albumen pH, no statistical significance was found. As they did not differ from the corn treatment, the parameters were satisfactory for egg production with sweet potato bran.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | por |
| Published: |
Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata
2022
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| Online Access: | https://revistas.unlp.edu.ar/revagro/article/view/12585 |
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| Summary: | The article aims to evaluate the productive response of birds when fed with sweet potato meal as a substitute for corn meal. The experiment took place in the field in two rural properties with organic certification in the region of Londrina-PR. Forty-eight red mixed breed laying birds were used. They were evaluated for production parameters, external and internal egg quality standards during 4 cycles of 21 days. For the productive parameters such as laying rate, feed conversion and egg mass, there was a statistical difference (p<0.05) with a superior result for corn bran. For external egg quality variables, no statistical differences were found (p<0.05) between treatments. For the parameter husk weight, a statistical difference was found with a superior result for the treatment with corn bran. For the analysis of internal egg quality, a significant difference was found for corn bran for the variables height, weight and yolk diameter. For albumen height, yolk color, Haugh unit, yolk percentage, albumen percentage, yolk index, yolk and albumen pH, no statistical significance was found. As they did not differ from the corn treatment, the parameters were satisfactory for egg production with sweet potato bran. |
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