Abstract
The effects of advancing maturity and ensiling on the carbohydrate and nitrogen fractions and in vitro digestibility were studied on freeze-ground fresh and ensiled samples of two forage sorghums (Pioneer 931 and RP-30F) and two corn varieties (Cargill 1089 silage corn and Cargill HS-50 high sugar corn) at five stages of maturity. Advancing maturity resulted in a significant (P < .01) increase in dry matter and hemicellulose and a significant (P < .01) decrease in crude protein and estimated total digestible nutrients (ETDN). The decrease in estimated digestible energy (EDE) and in vitro digestible dry matter with advancing maturity was significant (P < .05). Ensiled forage had a significantly (P < .01) lower soluble carbohydrate, EDE and EDTN content and a significantly (P < .01) higher acid detergent fiber, cellulose and lignin content than did fresh forage. The effects of advancing maturity and ensiling on composition of the structural constituents are discussed with reference to their effect on digestibility of forage plants.
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Claims 5
Claim · model-written summary
Advancing maturity significantly increased forage dry matter and hemicellulose.
Verbatim
e0“Advancing maturity resulted in a significant (P < .01) increase in dry matter and hemicellulose”
e1“two forage sorghums (Pioneer 931 and RP-30F) and two corn varieties”
Claim · model-written summary
Advancing maturity significantly decreased crude protein and estimated total digestible nutrients.
Verbatim
e0“a significant (P < .01) decrease in crude protein and estimated total digestible nutrients (ETDN)”
e1“Advancing maturity”
e2“two forage sorghums (Pioneer 931 and RP-30F) and two corn varieties”
Claim · model-written summary
Advancing maturity significantly decreased estimated digestible energy and in vitro digestible dry matter.
Verbatim
e0“The decrease in estimated digestible energy (EDE) and in vitro digestible dry matter with advancing maturity was significant (P < .05)”
e1“two forage sorghums (Pioneer 931 and RP-30F) and two corn varieties”
Claim · model-written summary
Ensiled forage had lower soluble carbohydrate, EDE, and EDTN than fresh forage.
Verbatim
e0“Ensiled forage had a significantly (P < .01) lower soluble carbohydrate, EDE and EDTN content and a significantly (P < .01) higher acid detergent fiber, cellulose and lignin content than did fresh forage”
e1“two forage sorghums (Pioneer 931 and RP-30F) and two corn varieties”
Claim · model-written summary
Ensiled forage had higher acid detergent fiber, cellulose, and lignin than fresh forage.
Verbatim
e0“Ensiled forage had a significantly (P < .01) lower soluble carbohydrate, EDE and EDTN content and a significantly (P < .01) higher acid detergent fiber, cellulose and lignin content than did fresh forage”
e1“two forage sorghums (Pioneer 931 and RP-30F) and two corn varieties”
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