Estimation and validation of total digestible nutrient values of forage and concentrate feedstuffs

9th Annual Basic Science International Conference 2019

自然科学（总论）

Jayanegara, Anuraga^1 ; Ridla, Muhammad^1 ; Nahrowi^1 ; Laconi, E.B.^1

Department of Nutrition and Feed Technology, Faculty of Animal Science, Bogor Agricultural University, Bogor

16680, Indonesia^1

关键词: Correlation analysis;    Important value;    Multiple linear regression method;    Neutral detergent fiber;    Nutrient composition;    Nutrient contents;    Nutrient values;    Prediction equations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/546/4/042016/pdf
DOI  :  10.1088/1757-899X/546/4/042016

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

Total digestible nutrient (TDN) values represent utilisable energy contents of feedstuffs, and these are extremely important values in order to provide adequate energy supply for livestock. This study aimed to estimate and validate TDN values of forage and concentrate feedstuffs from their nutrient contents. Nutrient composition data were obtained from BR CORTE database, comprised of 86 forage and 36 concentrate feedstuffs. The data included contents of dry matter (DM), organic matter (OM), ash, neutral detergent fiber (NDF), lignin, non-fiber carbohydrate (NFC), ether extract (EE), crude protein (CP) and TDN. A correlation analysis was conducted among the nutrient composition parameters for forage and concentrate. Data were then randomly divided into two parts, the first part (two-third of data) was used to estimate TDN whereas the second part (one-third) was used to validate the estimated TDN. Estimation of TDN was performed by employing a multiple linear regression method and it was validated by plotting between observed and estimated TDN. Results revealed that TDN in forage was negatively correlated with NDF (P