Abstract
The objective of this study was to investigate the feeding value of sheepgrass, including its chemical composition, dry matter intake, nutrient digestibility, and available energy, as well as the prediction equations of dry matter intake (DMI), neutral detergent fiber digestibility (NDFD), dry matter digestibility (DMD), digestible energy (DE), and metabolizable energy (ME). Two independent experiments based on a completely randomized experimental design were performed to evaluate the feeding value. The results showed that there were significant relationships between chemical composition and DMI, digestibility, and available energy. The best-fit equations were as follows: DMI (g/d·W0.75) = 121.75 + 0.06CP (%) − 0.24EE (%) − 0.10ADF (%) − 0.60NDF (%) − 0.15OM (%) (R2 = 0.85, p < 0.01), DMD (%) = −1.37 + 0.23CP (%) + 2.96EE (%) + 0.32ADF (%) − 0.82NDF (%) + 1.27OM (%) (R2 = 0.83, p < 0.01), NDFD (%) = 225.58 − 0.59CP (%) + 0.04EE (%) + 0.09ADF (%) − 2.46NDF (%) + 0.12OM (%) (R2 = 0.67, p < 0.01), DE (MJ/kg) = −5.19 + 0.38OM (%) − 0.26NDF (%) − 0.03ADF (%) + 0.16CP (%) (R2 = 0.91, p < 0.01), and ME (MJ/kg) = 5.55 + 0.67DE (MJ/kg) + 0.01CP (%) − 0.01ADF (%) − 0.08NDF (%) + 0.02OM (%) (R2 = 0.98, p < 0.01). This study found the energy value of sheepgrass to be 11 MJ/kg, which is similar to that of millet grass silage. The NDF was the main component that affected DMI and digestibility. Using a hay replacement ratio of 28.5% to determine the forage value of sheepgrass allowed accurate prediction equations to be established. The NDF demonstrated the strongest correlation with DMI, NDFD, OMD, DE, and ME. DE was estimated to be the best single predictor of ME.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Chemical composition was significantly related to DMI, digestibility and available energy of sheepgrass.
Not reportedDirection
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“The results showed that there were significant relationships between chemical composition and DMI, digestibility, and available energy”
Claim · model-written summary
The best-fit DMI prediction equation for sheepgrass hay had R2 = 0.85.
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“DMI (g/d·W0.75) = 121.75 + 0.06CP (%) − 0.24EE (%) − 0.10ADF (%) − 0.60NDF (%) − 0.15OM (%) (R2 = 0.85, p < 0.01)”
Claim · model-written summary
The best-fit DMD prediction equation for sheepgrass hay had R2 = 0.83.
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“DMD (%) = −1.37 + 0.23CP (%) + 2.96EE (%) + 0.32ADF (%) − 0.82NDF (%) + 1.27OM (%) (R2 = 0.83, p < 0.01)”
Claim · model-written summary
The best-fit NDFD prediction equation for sheepgrass hay had R2 = 0.67.
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“NDFD (%) = 225.58 − 0.59CP (%) + 0.04EE (%) + 0.09ADF (%) − 2.46NDF (%) + 0.12OM (%) (R2 = 0.67, p < 0.01)”
Claim · model-written summary
The best-fit DE prediction equation for sheepgrass hay had R2 = 0.91.
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“DE (MJ/kg) = −5.19 + 0.38OM (%) − 0.26NDF (%) − 0.03ADF (%) + 0.16CP (%) (R2 = 0.91, p < 0.01)”
Claim · model-written summary
The best-fit ME prediction equation for sheepgrass hay had R2 = 0.98.
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“ME (MJ/kg) = 5.55 + 0.67DE (MJ/kg) + 0.01CP (%) − 0.01ADF (%) − 0.08NDF (%) + 0.02OM (%) (R2 = 0.98, p < 0.01)”
Claim · model-written summary
The energy value of sheepgrass was 11 MJ/kg, similar to that of millet grass silage.
Verbatim
e0“This study found the energy value of sheepgrass to be 11 MJ/kg, which is similar to that of millet grass silage”
Claim · model-written summary
NDF was the main component affecting DMI and digestibility of sheepgrass.
Not reportedDirection
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“The NDF was the main component that affected DMI and digestibility”
Claim · model-written summary
NDF showed the strongest correlation with DMI, NDFD, OMD, DE and ME of sheepgrass.
Not reportedDirection
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“The NDF demonstrated the strongest correlation with DMI, NDFD, OMD, DE, and ME”
Claim · model-written summary
DE was estimated to be the best single predictor of ME in sheepgrass.
Verbatim
e0“investigate the feeding value of sheepgrass”
e1“DE was estimated to be the best single predictor of ME”