純種豬檢定之選拔指數、體型評鑑及腳蹄評分的名次分級之間相關性探討

本研究目的為探討純種豬檢定之選拔指數、體型評鑑及腳蹄評分名次之相關性。試驗豬隻來自2011年3月23日至2019年5月22日期間，在財團法人中央畜產會中央檢定站，於各期完檢後之選拔指數合格且有腳蹄評分名次之460頭種豬。純種豬檢定指數達100以上者進行體型評鑑，若豬隻同品種與同性別內，體型評鑑有入選2頭以上，再進行腳蹄評分，體型評鑑與腳蹄評分由不同人員進行。每個項目依照名次分成三組，再應用卡方分布、皮爾遜（Pearson）簡單相關及斯皮爾曼順位相關係數（Spearman's Rank Correlation Coefficient）分析。試驗結果如下：1.體型評鑑、選拔指數及腳蹄評分三者之名次皆非獨立，就名次而言，體型評鑑與選拔指數、腳蹄評分與指數及腳蹄評分與體型評鑑之間的Cramer's V測定值分別為0.51、0.61及0.54，皆屬中高強度相關；2.就Pearson簡單相關係數而言，體型評鑑與選拔指數、腳蹄評分與指數及腳蹄評分與體型評鑑的係數分別為0.357、0.428及0.348。斯皮爾曼順位相關係數而言，體型評鑑與選拔指數、腳蹄評分與選拔指數及腳蹄評分與體型評鑑的係數分別為0.747、0.783及0.752，腳蹄評分、選拔指數及體型評鑑三者之間之斯皮爾曼順位相關係數呈高的正相關，本研究結果顯示有優良的性能選拔指數名次的種豬必有好的體型評鑑與高的腳蹄評分名次。

關鍵字

種豬；選拔指數名次；體型評鑑名次；腳蹄評分名次；相關性測定

並列摘要

The purpose of this study was to examine the relationship of ranks among selection index, body type evaluation, and hoof evaluation. This study contained 460 purebred pigs with rank of hoof evaluation, which came from the Central Performance Test Station of National Animal Industry Foundation. The performance test period was from March 3, 2011 to May 22, 2019. We evaluated body type from those purebred pigs with selection index larger than 100. If body type evaluation had selected more than two purebred pigs at the same breed and gender, then to conduct foot hoof evaluation. Body type evaluation and foot hooves were evaluated by different personnel group. We divided the ranking of each item into three grades. The analysis tool was the Chi-Squared Test, Pearson simple correlation and Spearman's rank correlation coefficient. The results were as follows: (1) According to Chi-Squared Test analysis , we rejected the hypothesis that the rank are independent among test index, body type evaluation, and foot hoof evaluation. As for ranks, the Cramer's V test values of X2 between selection index and body type evaluation, selection index and foot hoof evaluation and body type evaluation and foot hoof evaluation were 0.51, 0.61 and 0.54, respectively. There was moderate high relationship among these three items. (2) The Pearson rank correlation coefficient of ranks between selection index and body type evaluation, selection index and foot hoof evaluation, and body type evaluation and foot hoof evaluation were 0.357, 0.428 and 0.348, respectively. The Spearman's rank correlation coefficient of ranks between selection index and body type evaluation, selection index and foot hoof evaluation, and body type evaluation and foot hoof evaluation were 0.747, 0.783 and 0.752, respectively. Spearman's rank correlation coefficient among selection index, body type evaluation, and foot hoof evaluation showed a high positive correlation. The results of this study indicated that the breeding pigs, with high performance selection index ranking, had high ranking of body type evaluation and foot hoof.

並列關鍵字

Breeding pigs ； Rank of selection index ； Rank of body type evaluation ； Rank of foot hoof evaluation ； Correlation test

國際替代計量

純種豬檢定之選拔指數、體型評鑑及腳蹄評分的名次分級之間相關性探討

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