Author: Roy Saltzman EmeryPublisher:
ISBN:
Category : Cattle
Languages : en
Pages : 216
Book Description
Effect of Roughage Level in the Ration on Production of Short Chain Acids and Sulfur Amino Acids in Rumen Fermentation
Author: Roy Saltzman EmeryPublisher:
ISBN:
Category : Cattle
Languages : en
Pages : 216
Book Description
A Study of the Effects of Isoacids, Urea, and Sulfur on the Rate of Fermentation in the Rumen
Author: Maria Esperanza Quispe SalasPublisher:
ISBN:
Category : Rumen fermentation
Languages : en
Pages : 194
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 DavisonPublisher:
ISBN:
Category :
Languages : en
Pages : 296
Book Description
Effect of Roughage to Concentrate Ratio on Ruminal Fermentation and Protein Degradability in Dairy Cows
Author: Herman NienaberPublisher:
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.
Interrelationships Between Composition and Physical Condition of Feeds, Rumen Fermentation Products, Blood Constituents and Milk Fat of Ruminants
Author: Peter John Van SoestPublisher:
ISBN:
Category :
Languages : en
Pages : 194
Book Description
The Effect of the Amount and Physical State of the Roughage Upon the Rumen Fatty Acids and Milk Fat of Dairy Cows
Author: William John TyznikEffects of Protected Tallow in High and Low Roughage Rations on Rumen Fermentation in Cattle
Author: Carol Ann RussellFat Supplementation and Varying Rate and Extent of Fermentation in Rations for Dairy Cows
Author: Sven KellerPublisher:
ISBN: 9783832218195
Category : Dairy cattle
Languages : en
Pages : 156
Book Description
Effect of Alterations in Rumen Fatty Acid Production on Milk Production and Composition
Author: Neal Albert JorgensenPublisher:
ISBN:
Category : Milk
Languages : en
Pages : 204
Book Description
Comprehensive Dissertation Index, 1861-1972: Chemistry
Author: Xerox University MicrofilmsPublisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 960
Book Description