动物营养学报2016，Vol.28Issue(12)：232-241,10.DOI:10.3969/j.issn.1006-267x.2016.12.029
不同钙、磷水平饲粮对12～15月龄梅花鹿生长性能、营养物质消化率及钙、磷代谢的影响
Effects of Diets with Different Calcium and Phosphorus Levels on Growth Performance, Nutrient Digestibility, Calcium and Phosphorus Metabolism of 12 to 15 Months Old Sika Deer
摘要
Abstract
This experiment aimed to study the effects of diets with different calcium and phosphorus levels on growth performance, nutrient digestibility, calcium and phosphorus metabolism of 12 to 15 months old sika deer, in order to confirm the appropriate calcium and phosphorus levels for 12 to 15 months old sika deer. Six⁃teen healthy male sika deer of similar hereditary were randomly divided into four groups, and the difference in body weight was not significant among groups ( P>0.05) . Each group contained four replicates and each repli⁃cate had one deer. The levels of calcium and phosphorus in the four groups were 0. 49% and 0. 33% ( groupⅠ), 0.82% and 0.56% (group Ⅱ), 1.16% and 0.80% (group Ⅲ), 1.61% and 1.12% (group Ⅳ), re⁃spectively. The experimental period was from May 15th, 2015 to August 7th, 2015. The results showed as fol⁃lows:1) there were no significant differences in body weight, average daily gain ( ADG) , average daily feed intake ( ADFI) and feed weight ratio ( F/G) of 12 to 15 months old sika deer in different time among four groups ( P>0.05) . From the whole experimental period, the growth performance of group Ⅳ was better than other three groups. 2) Serum calcium level in groupⅢwas significantly lower than that in groupsⅠandⅣon the 30th day (P<0.05), but there was no significant difference among four groups on the other time points ( the 1st day, the 60th day and the 83rd day) ( P>0.05) . As the extension of experimental time, serum calci⁃um level in groups Ⅰ, Ⅱ and Ⅲ had no significant change ( P>0.05) , but the group Ⅳ showed a gradually upward trend, and obtained the highest value of 2.415 nmol/L on the 83rd day which significantly higher than the value of 2.280 nmol/L on the 1st day ( P<0.05) . There was no significant difference in serum phosphorus level among different groups on the same time point ( P>0.05) , and the serum phosphorus level in each group had no significant change on different time points ( P>0.05) . Serum magnesium level in group Ⅰ was signifi⁃cantly higher than that in groups Ⅲ and Ⅳ on the 1st day (P<0.05), and significantly higher than that in group Ⅲon the 30th day ( P<0.05) . As the extension of experimental time, serum magnesium level in groupsⅠ, Ⅱ and Ⅲ had no significant change ( P>0.05) , but the group Ⅳ showed a trend of first increasing and then decreasing and it on the 30th day and the 60th day was significantly higher than that on the 1st day and the 83rd day (P<0.05). 3) Serum testosterone and estradiol levels showed no significant changes in each group ( P>0.05) , and serum parathyroid hormone, osteocalcin levels and alkaline phosphatase activity also showed no significant changes with the calcium and phosphorus levels increasing ( P> 0.05) . 4) During the whole ex⁃perimental period, the digestibility of crude protein, crude fat, calcium and phosphorus in the groupⅢwas the highest, and the digestibility of calcium and phosphorus was 51.08% and 67.71%, respectively. In conclusion, dietary calcium and phosphate levels have no significant effects on the serum sex hormone, calcium, magnesi⁃um and phosphate levels of 12 to 15 months old sika deer, but the nutrient digestibility is the highest in groupⅢ, so it is recommended that diet with 1.16% calcium and 0.80% phosphorus is suitable for 12 to 15 months old sika deer.关键词
梅花鹿/钙/磷/生长性能/血清生化指标/消化率Key words
sika deer/calcium/phosphorus/growth performance/serum biochemical indices/digestibility分类
农业科技引用本文复制引用
孙伟丽,赵海平,王晓旭,樊燕燕,鲍坤,王艳梅,李光玉..不同钙、磷水平饲粮对12～15月龄梅花鹿生长性能、营养物质消化率及钙、磷代谢的影响[J].动物营养学报,2016,28(12):232-241,10.基金项目
吉林省重大科技攻关专项（20140203018NY）；吉林省科技发展计划项目 （）
