| 黄骏腾 苏 瑛 黄汉光 许 冲 常 羽 张土如 崔红艳.雷州黑鸭生长规律及其生长曲线模型拟合分析[J].广东农业科学,2015,42(1):105-108 |
|
查看全文
HTML
雷州黑鸭生长规律及其生长曲线模型拟合分析 |
| Study on growth rule and growth curve model fit to Leizhou black ducks |
| 投稿时间：2014-10-06 |
| DOI： |
| 中文关键词: 雷州黑鸭 生长曲线 生长模型 体重 |
| 英文关键词: Leizhou black duck growth curve growth model body weight |
| 基金项目: |
|
| 摘要点击次数: 2262 |
| 全文下载次数: 1343 |
| 中文摘要: |
| 为了研究雷州黑鸭的早期生长发育规律，运用 Logistic、Gompertz 和 Von Bertalanffy 等 3 种生长曲线模型对雷州黑鸭公母鸭 0~16 周龄体重进行拟合分析。 结果表明，3 种生长模型都能很好地拟合雷州黑鸭生长曲线，公母鸭的最佳拟合模型都是 Von Bertalanffy，分析得到公鸭曲线的拟合度为 0.995，母鸭的拟合度为 0.998；公鸭的拐点周龄和拐点体重分别是 5.17 周、506.76g，母鸭的拐点周龄和拐点体重分别是 4.66 周、458.01g， 最佳上市日龄可在10 周龄左右。 在实际生产中，应尽量满足雷州黑鸭前 10 周的营养供给，最大限度地提高雷州黑鸭的体重，以获得最大的经济效益。 |
| 英文摘要: |
| In order to study the early growth rules of Leizhou black ducks, three growth curve models (Logistic,
Gompertz and Von Bertalanffy) were used to fit and analyze Leizhou black ducks from 0 to 16-week-old weight. The
results showed that the growth curves were appropriately fitted with all three models and the best one was Von Bertalanffy
model for both male and female ducks. Analyzed from the Von Bertalanffy model, the goodness-of-fit of male duck growth
curve was 0.995 and that of female duck was 0.998. In addition, the weeks and weights of inflection piont of male duck
were respectively 5.17 weeks and 506.76 g, which were higher than those of female duck (4.66 weeks and 458.01 g).
Moreover, the best market age of Leizhou black duck was 10-week old. As a result, it was necessary to meet nutrition
supply as far as possible in the first 10 weeks during growth and development in actual production to achieve the goal of
furthest increase of body weight and gain the greatest economic benefits. |
|
查看/发表评论 下载PDF阅读器 |
