关键词: 除磷, 除磷

Abstract: In order to understand the growth and development characteristics of Guizhou Black Horse Goat and provide useful information for rearing lambs, meat goat fattenning, grassland monitoring, feeding and management. The growing development and meat performance was analyzed by the actual observation, experiment measurement, transverse and longitudinal comparison methods. The results showed that the bodyweight of 6-month-old male and ewe Guizhou Black Horse Goat was (18.46±3.29) kg and (17.35±3.23) kg, respective, significantly higher than the Guizhou Black Goat (P<0.05). The bodyweight of yearling ram and yearling does was respectively (29.39±5.51) kg, (24.53±5.67) kg. Adult ram and adult does weight was (40.08±7.73) kg and (34.90±6.56) kg, respectively, significantly higher than the Guizhou Black Goat (P<0.01). The dressing percentage of yearling ram and adult wether was 48.50% and 51.61%. The growth rate was best in 0—3 months of age, and which daily gain was 129.56, 126.33 g respective on ram and does. The daily gain was of 0—6 months-old ram and does was 88.12 and 84.59 g, and other month declined gradually. The growth and development law of Guizhou Black Horse Goat has been explored. Its growth speed was better than Guizhou Black Goat. Guizhou Black Horse Goat has its unique physical characteristics, genetic stability, so it was necessary to speed up the breeding progress.