Author: Melvin Everett Davison
Publisher:
ISBN:
Category :
Languages : en
Pages : 296
Book Description
The Effect of Varying the Roughage to Concentrate Ratio on the Production of Volatile Fatty Acids in the Bovine Rumen with Observations on the Effect of Location of Sampling Site
Author: Melvin Everett Davison
Publisher:
ISBN:
Category :
Languages : en
Pages : 296
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 296
Book Description
Dissertation Abstracts International
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1248
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1248
Book Description
Bibliography of Agriculture
Register of Ph. D. Degrees Conferred by the University of Minnesota, 1938-June 1956
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 378
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 378
Book Description
Commencement
Author: University of Minnesota
Publisher:
ISBN:
Category : Commencement ceremonies
Languages : en
Pages : 510
Book Description
Publisher:
ISBN:
Category : Commencement ceremonies
Languages : en
Pages : 510
Book Description
Register of Ph. D. Degrees Conferred by the University of Minnesota
Author: University of Minnesota
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 388
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 388
Book Description
Comprehensive Dissertation Index
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1244
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1244
Book Description
Comprehensive Dissertation Index, 1861-1972: Agriculture
Author: Xerox University Microfilms
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1226
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1226
Book Description
Effect of Roughage to Concentrate Ratio on Ruminal Fermentation and Protein Degradability in Dairy Cows
Author: Herman Nienaber
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Published research suggests that it might be beneficial to increase the amount of rumen undegradable protein (RUP) that passes out of the rumen, through manipulation of rumen fermentation to establish a lower rumen pH. To test this hypothesis, a study was conducted in which three ruminally cannulated Holstein cows, 722 kg ; 25.6 kg fed three different diets (treatments) were used in a Latin square design experiment to determine effects of increasing levels of dietary concentrate on some rumen parameters and ruminal crude protein (CP) degradability. The in situ method was used to determine the ruminal protein degradability of sunflower oilcake, cottonseed oilcake and roasted soya. The three treatments differed in roughage:concentrate ratio, being 60:40 (Treatment UP 60), 45:55 (Treatment UP 45) and 30:70 (Treatment UP 30). Intake of dry matter (DM) (kg/day) did not differ between treatments. The mean rumen pH in cows receiving the three experimental diets differed and was 6.00, 6.27 and 6.44 for treatments UP 30, UP 45 and UP 60 respectively. The time (hours) below pH 5.8, which is considered to be the pH where fibre degradation is substantially negatively affected, was approximately 2.5 hours, but only on treatment UP 30. Mean rumen ammonia nitrogen (N) and total volatile fatty acid (VFA) concentrations did not differ among cows receiving different treatments but, cows fed treatment UP 30 had a lower ruminal acetic acid:propionic acid (A:P) ratio compared to the other treatments. There were no differences in ruminal CP degradation within the three feedstuffs when incubated in cows fed diets with different roughage:concentrate ratios. Results suggest that roughage:concentrate ratios ranging from 60:40 to 30:70, which resulted in mean pH values ranging from 6.4 to 6.0, did not affect ruminal CP degradation of sunflower oilcake, cottonseed oilcake and roasted soya.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Published research suggests that it might be beneficial to increase the amount of rumen undegradable protein (RUP) that passes out of the rumen, through manipulation of rumen fermentation to establish a lower rumen pH. To test this hypothesis, a study was conducted in which three ruminally cannulated Holstein cows, 722 kg ; 25.6 kg fed three different diets (treatments) were used in a Latin square design experiment to determine effects of increasing levels of dietary concentrate on some rumen parameters and ruminal crude protein (CP) degradability. The in situ method was used to determine the ruminal protein degradability of sunflower oilcake, cottonseed oilcake and roasted soya. The three treatments differed in roughage:concentrate ratio, being 60:40 (Treatment UP 60), 45:55 (Treatment UP 45) and 30:70 (Treatment UP 30). Intake of dry matter (DM) (kg/day) did not differ between treatments. The mean rumen pH in cows receiving the three experimental diets differed and was 6.00, 6.27 and 6.44 for treatments UP 30, UP 45 and UP 60 respectively. The time (hours) below pH 5.8, which is considered to be the pH where fibre degradation is substantially negatively affected, was approximately 2.5 hours, but only on treatment UP 30. Mean rumen ammonia nitrogen (N) and total volatile fatty acid (VFA) concentrations did not differ among cows receiving different treatments but, cows fed treatment UP 30 had a lower ruminal acetic acid:propionic acid (A:P) ratio compared to the other treatments. There were no differences in ruminal CP degradation within the three feedstuffs when incubated in cows fed diets with different roughage:concentrate ratios. Results suggest that roughage:concentrate ratios ranging from 60:40 to 30:70, which resulted in mean pH values ranging from 6.4 to 6.0, did not affect ruminal CP degradation of sunflower oilcake, cottonseed oilcake and roasted soya.