Digestibility - Department of Animal Sciences

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Effect <strong>of</strong> enzyme source on cellulase activity % DM solubilized Fungi Herbage Cellulose paper Trichoderma spp. 57 69 Basidiomycete 48 20 Aspergillus niger 45 10 Rhizopus spp. 35 7 (Jones & Hayward, 1975)
14 C-Casein hydrolysis (mg/ml) 0.5 Co-culture 0.0 0.25 S. bovis 0.0 S. ruminantium 10 20 Time (h) Commercial enzymes don’t fully simulate microbial activity <strong>of</strong> mixed rumen microbes
Page 1 and 2: DIGESTIBILITY
Page 3 and 4: In vivo digestibility methods Direc
Page 5 and 6: In vivo digestibility trials in met
Page 7 and 8: Total collection calculations Diges
Page 9 and 10: 2. Difference method Allows digy ca
Page 11 and 12: DMD (g/kg) Regression method 800 Ba
Page 13 and 14: Marker digestibility trials Particu
Page 15 and 16: Marker digestibility Pros - Total f
Page 17 and 18: Marker issues Difficulty of mixing
Page 19 and 20: Ideal in vitro methods should be: -
Page 21 and 22: Prediction of silage OMD in vivo fr
Page 23 and 24: Rumen fluid problems Analytical iss
Page 25 and 26: Rumen fluid technique - problems St
Page 27 and 28: Prediction of DMD in vivo from in v
Page 29 and 30: Relationships between DMD in vivo a
Page 31: Prediction of in vivo OMD of spring
Page 35 and 36: The ANKOM equipment
Page 37 and 38: ANKOM pros & cons Pros - Simplifies
Page 39: Digestibility references Chapters 6

Digestibility - Department of Animal Sciences

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