中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 线性回归法测定生长猪内源磷排泄量及鱼粉磷真消化率 动物营养学报 2009,21 (4) 441-446
Position: Home > Articles > Determination of Endogenous Phosphorus Outputs and True Digestibility of Phosphorus in Fish Meal of Growing Pigs by Linear Regression Analysis Technique Chinese Journal of Animal Nutrition 2009,21 (4) 441-446

线性回归法测定生长猪内源磷排泄量及鱼粉磷真消化率

作  者：
罗赞;贺建华;田科雄;罗俊鑫
单  位：
湖南农业大学动物科技学院
关键词：
线性回归法;生长猪;鱼粉;磷;内源排泄量;真消化率
摘  要：
本研究采用线性回归法测定生长猪内源磷排泄量及鱼粉磷的真消化率。选用5头健康大白×长白阉公猪为试验动物,平均体重为(27.17±0.28)kg。采用5×5拉丁方设计,设5个磷水平(0.08%、0.12%、0.17%、0.21%和0.25%),日粮以葡萄糖和玉米淀粉等为基础原料,鱼粉为磷唯一来源。日粮中添加0.1%TiO_2作为外源指示剂。试验分5个试验期,每期6 d,4 d适应期,2 d收粪期。结果表明,生长猪粪磷的排出量与日粮磷的摄入量呈线性关系(y=0.292 7x-0.052 8,R~2=0.99,P<0.01),回归法测得生长猪内源磷的排泄量为0.798 5 g/kg,鱼粉磷的真消化率为71.12%。分析粪磷来源发现,内源磷排泄量基本不变(P>0.05),而粪磷随日粮磷含量的增加而增加(P<0.01)。由结果可知,线性回归法可用于测定猪内源磷排泄量及鱼粉磷真消化率。
译  名：
Determination of Endogenous Phosphorus Outputs and True Digestibility of Phosphorus in Fish Meal of Growing Pigs by Linear Regression Analysis Technique
作  者：
LUO Zan HE Jianhua~* TIAN Kexiong LUO Junxin( College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China) professor,
关键词：
Regression analysis technique;;Growing pigs;;Fish meal;;Phosphorus;;Endogenous outputs;;True digestibility
摘  要：
Regression analysis technique was used to measure endogenous outputs of the fecal phosphorus (P) and true digestibility of P in fish meal of growing pigs. Five Yorkshire × Landrace barrows with average initial body weight of (27. 17 ± 0. 28) kg, were fed in the metabolic cage. According to a 5 × 5 Latin square design, the five diets with fish meal-corn starchglucose based experimental diet with five P levels (0. 08% , 0. 12% , 0. 17% , 0. 21% and 0. 25%) were formulated, in which the fish meal was the only P source. TiO_2 (0. 1%) was included in the diets as exogenous indicator. Each experimental period lasted for 6 d with 4 d of adaptation and 2 d of fecal collection . The results showed that , there existed increasing linear relationships between endogenous P outputs and dietary P inputs (y = 0. 292 7x - 0. 052 8, R~2 =0. 99, P<0. 01), and the endogenous P outputs was 0. 798 5 g/kg and true digestibility of P in fish meal was 71. 12% with regression analysis technique. There was no significant differences (P>0. 05) in endogenous P outputs by analysis of fecal P sources, while, there was significant increasing linear relationship (P<0. 01) between fecal P and dietary inputs of P. In conclusion, it was implicated that regression analysis technique was valid for estimating diets endogenous P outputs and true digestibility of P in fish meal of pigs.

相似文章

导出引用
计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46