Analisis de algunos factores que afectan el comportamiento reproductivo de varias razas de cerdos en una piara comercial de la provincia de Heredia, Costa Rica
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| 著者: | , , , , |
|---|---|
| フォーマット: | artículo original |
| 状態: | Versión publicada |
| 出版日付: | 1989 |
| その他の書誌記述: | Growth and reproductive records of a swine herd, located in the northern region of Heredia, were analyzed using least squares methodology in order to estimate the effect of some breed and non-genetical sources of variation. Breeds included in the analysis were Yorkshire, Landrace, Duroc and Hampshire. Crossbred sows were also considered. Studied traits were: litter size and weight at birth and at weaning, mortality from birth to weaning, lactation length, gestation length, rebreeding and farrowing interval. Dam´s breed significantly affected litter at birth meanwhile year of parturition and sire´s breed did not affect considered traits. |
| 国: | Portal de Revistas UNA |
| 機関: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| 言語: | Español |
| OAI Identifier: | oai:ojs.www.una.ac.cr:article/5415 |
| オンライン･アクセス: | https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/5415 |
| キーワード: | Analisis comportamiento reproductivo cerdos |