Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica)
This study aimed at evaluating the alternative method of zinc oxide and fasting to induce molt in Japanese quails. A total number of 190 48-week-old quails was used. They were at end of laying cycle, and presented low egg production. Quails molted by zinc oxide (Z) were fed a diet containing 25,000...
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| Format: | Article |
| Language: | English |
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Fundação APINCO de Ciência e Tecnologia Avícolas
2007-06-01
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| Series: | Brazilian Journal of Poultry Science |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200002 |
| _version_ | 1828240661669740544 |
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| author | RSC Teixeira WM Cardoso GC Nogueira SR Câmara JM Romao AA Siqueira FAC Sampaio TGV Moraes CC Campello CC Buxade |
| author_facet | RSC Teixeira WM Cardoso GC Nogueira SR Câmara JM Romao AA Siqueira FAC Sampaio TGV Moraes CC Campello CC Buxade |
| author_sort | RSC Teixeira |
| collection | DOAJ |
| description | This study aimed at evaluating the alternative method of zinc oxide and fasting to induce molt in Japanese quails. A total number of 190 48-week-old quails was used. They were at end of laying cycle, and presented low egg production. Quails molted by zinc oxide (Z) were fed a diet containing 25,000 ppm of zinc oxide, and received water ad libitum. Quails treated by fasting (F) received no feed and a day of water restriction. The treatment period was determined by the experimental level of body weight loss (BWL). Birds were submitted to different levels of BWL in order to analyze reproductive system regression (ovary + oviduct), and livability. The following groups were established according to their BWL: Control (untreated quails); F25 (25% BWL by F); F35 (35% BWL by F); Z25 (25% BWL by Z), and Z35 (35% BWL by Z). Z25, Z35, and F35 presented no significant differences in reproductive system weights after molting; however, their weights were lower than F. Z, Z, and F presented the following livability: 97.5, 72.5, and 90%. Japanese quails treated by the alternative method of zinc oxide, presenting body weight loss of 25%, showed low mortality rate, and adequate regression of the reproductive organs. |
| first_indexed | 2024-04-12T21:44:42Z |
| format | Article |
| id | doaj.art-b6345f0d05894e9ba406f5beaa11cfa0 |
| institution | Directory Open Access Journal |
| issn | 1516-635X 1806-9061 |
| language | English |
| last_indexed | 2024-04-12T21:44:42Z |
| publishDate | 2007-06-01 |
| publisher | Fundação APINCO de Ciência e Tecnologia Avícolas |
| record_format | Article |
| series | Brazilian Journal of Poultry Science |
| spelling | doaj.art-b6345f0d05894e9ba406f5beaa11cfa02022-12-22T03:15:41ZengFundação APINCO de Ciência e Tecnologia AvícolasBrazilian Journal of Poultry Science1516-635X1806-90612007-06-0192858910.1590/S1516-635X2007000200002Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica)RSC TeixeiraWM CardosoGC NogueiraSR CâmaraJM RomaoAA SiqueiraFAC SampaioTGV MoraesCC CampelloCC BuxadeThis study aimed at evaluating the alternative method of zinc oxide and fasting to induce molt in Japanese quails. A total number of 190 48-week-old quails was used. They were at end of laying cycle, and presented low egg production. Quails molted by zinc oxide (Z) were fed a diet containing 25,000 ppm of zinc oxide, and received water ad libitum. Quails treated by fasting (F) received no feed and a day of water restriction. The treatment period was determined by the experimental level of body weight loss (BWL). Birds were submitted to different levels of BWL in order to analyze reproductive system regression (ovary + oviduct), and livability. The following groups were established according to their BWL: Control (untreated quails); F25 (25% BWL by F); F35 (35% BWL by F); Z25 (25% BWL by Z), and Z35 (35% BWL by Z). Z25, Z35, and F35 presented no significant differences in reproductive system weights after molting; however, their weights were lower than F. Z, Z, and F presented the following livability: 97.5, 72.5, and 90%. Japanese quails treated by the alternative method of zinc oxide, presenting body weight loss of 25%, showed low mortality rate, and adequate regression of the reproductive organs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200002Forced moltingovaryoviductquailzinc oxide |
| spellingShingle | RSC Teixeira WM Cardoso GC Nogueira SR Câmara JM Romao AA Siqueira FAC Sampaio TGV Moraes CC Campello CC Buxade Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica) Brazilian Journal of Poultry Science Forced molting ovary oviduct quail zinc oxide |
| title | Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica) |
| title_full | Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica) |
| title_fullStr | Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica) |
| title_full_unstemmed | Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica) |
| title_short | Evaluation of induced molting methods on the livability and reproductive system regression of Japanese quails (Coturnix japonica) |
| title_sort | evaluation of induced molting methods on the livability and reproductive system regression of japanese quails coturnix japonica |
| topic | Forced molting ovary oviduct quail zinc oxide |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200002 |
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