Quail performance and egg quality at the end of production fed with varying levels of calcium
The goal of the present study was to evaluate the influence of increasing levels of dietary calcium on performance, egg quality, and the amount of calcium retained in the meat and excreted by Japanese quails at the final production. Four hundred 46-58-week-old Japanese quails were distributed in a c...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2016-09-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/22769 |
| _version_ | 1819230585074221056 |
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| author | Daniele Santos de Souza Lígia Fátima Lima Calixto Marina Jorge Lemos Carlos Alberto da Silva Filho Thiers Pascoal Pinho Cleriston Andrade Machado Izaura Andrade de Melo Cristina Kimie Togashi |
| author_facet | Daniele Santos de Souza Lígia Fátima Lima Calixto Marina Jorge Lemos Carlos Alberto da Silva Filho Thiers Pascoal Pinho Cleriston Andrade Machado Izaura Andrade de Melo Cristina Kimie Togashi |
| author_sort | Daniele Santos de Souza |
| collection | DOAJ |
| description | The goal of the present study was to evaluate the influence of increasing levels of dietary calcium on performance, egg quality, and the amount of calcium retained in the meat and excreted by Japanese quails at the final production. Four hundred 46-58-week-old Japanese quails were distributed in a completely randomized design consisting of five calcium level treatments: T1 = 2.95%, T2 = 3.25%, T3 = 3.55%, T4 = 3.85% and T5 = 4.15% calcium. The performance variables included feed intake (g bird-1 day-1), egg production (%), feed conversion by egg mass and per dozen eggs, egg mass (g), and viability. For egg quality, we assessed egg weight, percentage of albumen, yolk weight, percentage of shell, and shell thickness. We also evaluated the amount of calcium present in the meat and the amount of calcium excreted by quails. Increasing levels of calcium linearly influenced feed conversion, weight of yolk, and percentage of eggshell. Shell thickness increased up to the 3.85% calcium treatment. Calcium content of the meat differed among the quails; the quails fed the lowest level of calcium (2.95%) showed higher calcium content in meat, whereas calcium excretion increased with increasing levels of calcium in the diet. In conclusion, the addition of 3.85% of calcium in quail feed at the end of production improved eggshell quality, and maintained internal quality and performance within the recommended standards for the production phase tested in quails. Levels higher than 3.85% calcium negatively influenced the parameters analyzed. |
| first_indexed | 2024-12-23T11:31:24Z |
| format | Article |
| id | doaj.art-256bc60235e24a038f63f8e612578538 |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-12-23T11:31:24Z |
| publishDate | 2016-09-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-256bc60235e24a038f63f8e6125785382022-12-21T17:48:48ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592016-09-01374Supl12395240610.5433/1679-0359.2016v37n4Supl1p239514375Quail performance and egg quality at the end of production fed with varying levels of calciumDaniele Santos de Souza0Lígia Fátima Lima Calixto1Marina Jorge Lemos2Carlos Alberto da Silva Filho3Thiers Pascoal Pinho4Cleriston Andrade Machado5Izaura Andrade de Melo6Cristina Kimie Togashi7Universidade Federal Rural do Rio de JaneiroUniversidade Federal Rural do Rio de JaneiroUniversidade Federal Rural do Rio de JaneiroUniversidade Federal Rural do Rio de JaneiroUniversidade Federal Rural do Rio de JaneiroUniversidade Federal Rural do Rio de JaneiroUniversidade Federal Rural do Rio de JaneiroUniversidade Federal FluminenseThe goal of the present study was to evaluate the influence of increasing levels of dietary calcium on performance, egg quality, and the amount of calcium retained in the meat and excreted by Japanese quails at the final production. Four hundred 46-58-week-old Japanese quails were distributed in a completely randomized design consisting of five calcium level treatments: T1 = 2.95%, T2 = 3.25%, T3 = 3.55%, T4 = 3.85% and T5 = 4.15% calcium. The performance variables included feed intake (g bird-1 day-1), egg production (%), feed conversion by egg mass and per dozen eggs, egg mass (g), and viability. For egg quality, we assessed egg weight, percentage of albumen, yolk weight, percentage of shell, and shell thickness. We also evaluated the amount of calcium present in the meat and the amount of calcium excreted by quails. Increasing levels of calcium linearly influenced feed conversion, weight of yolk, and percentage of eggshell. Shell thickness increased up to the 3.85% calcium treatment. Calcium content of the meat differed among the quails; the quails fed the lowest level of calcium (2.95%) showed higher calcium content in meat, whereas calcium excretion increased with increasing levels of calcium in the diet. In conclusion, the addition of 3.85% of calcium in quail feed at the end of production improved eggshell quality, and maintained internal quality and performance within the recommended standards for the production phase tested in quails. Levels higher than 3.85% calcium negatively influenced the parameters analyzed.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/22769Coturnix coturnix japonica. Digestibilidade. Espessura de casca. |
| spellingShingle | Daniele Santos de Souza Lígia Fátima Lima Calixto Marina Jorge Lemos Carlos Alberto da Silva Filho Thiers Pascoal Pinho Cleriston Andrade Machado Izaura Andrade de Melo Cristina Kimie Togashi Quail performance and egg quality at the end of production fed with varying levels of calcium Semina: Ciências Agrárias Coturnix coturnix japonica. Digestibilidade. Espessura de casca. |
| title | Quail performance and egg quality at the end of production fed with varying levels of calcium |
| title_full | Quail performance and egg quality at the end of production fed with varying levels of calcium |
| title_fullStr | Quail performance and egg quality at the end of production fed with varying levels of calcium |
| title_full_unstemmed | Quail performance and egg quality at the end of production fed with varying levels of calcium |
| title_short | Quail performance and egg quality at the end of production fed with varying levels of calcium |
| title_sort | quail performance and egg quality at the end of production fed with varying levels of calcium |
| topic | Coturnix coturnix japonica. Digestibilidade. Espessura de casca. |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/22769 |
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