Author: Francisco San EmeterioPublisher:
ISBN:
Category :
Languages : en
Pages : 416
Book Description
Effect of Grinding and Moisture Level of Corn Grain on Performance of Lactating Dairy Cows
Author: Francisco San EmeterioPublisher:
ISBN:
Category :
Languages : en
Pages : 416
Book Description
Effects of Grain Processing with Focus on Grinding and Steam- Flaking on Dairy Cow Performance
Author: Khalil SafaeiPublisher:
ISBN:
Category : Science
Languages : en
Pages :
Book Description
Milk production and milk components are of prime economic importance for dairy farmers. Although milk production depends largely on numerous dietary nutrients, energy and protein are most critical. Feed grains containing starch such as corn, barley, wheat, and sorghum as a primary source of energy are commonly fed to beef and dairy cattle to improve meat or milk productions. Feed grain needs to be processed prior to feed cattle to increase accessibility of the endosperm by microbial population in the rumen and the host enzyme in the intestine. Grain processing is done by the application of various combinations of heat, moisture, time and mechanical actions. This article outlines the effect of grain processing method and degree of processing on rate and extent of grain digestion in the digestive tract of cattle, and consequently on lactation performance and cattle health. Methods of grinding, rolling and steam flaking are particularly discussed on their advantages and disadvantages. The optimal degree of processing can achieve a balance between maximizing the extent and controlling the rate of starch digestion in the rumen to maximize utilization and avoid digestive and metabolic disturbances. A recent developed precision processing technique has been highlighted and discussed as well.
Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 708
Book Description
Effects of Feeding High-Moisture Corn Grain with Slow-Release Urea in Dairy Diets on Lactational Performance, Energy and Nitrogen Utilization, and Ruminal Fermentation Profiles by Lactating Cows
Author: Braden M. TyePublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The objective of this experiment was to determine if nutrient utilization and energy partitioning by lactating dairy cows would differ in response to dietary corn grain (CG) types [steam-flaked corn (SFC) vs. high-moisture corn (HMC)] and to test if the types of CG would interact with slow-release urea (SRU) on lactational performance and energy utilization. Eight multiparous Holstein cows (32 ℗ł 8.2 days-in-milk) were used in a duplicated 4 ©7 4 Latin square with one square consisting of ruminally cannulated cows. A 2 ©7 2 factorial arrangement was used to test 4 dietary treatments: SFC without SRU, SFC with SRU, HMC without SRU, and HMC with SRU. The experimental diets contained 60.5% dry matter (DM) of forages, whereas 12.9% or 14.4% DM of SFC or HMC was added in the diets, respectively. The SRU was supplemented at 0.46% DM, replacing a mixture of soybean meal and canola meal in a 50:50 ratio. Feeding HMC decreased intakes of DM, crude protein, and fiber compared with SFC. Supplementation of SRU did not affect intakes of DM and nutrients, whereas it tended to increase intakes of DM or increased crude protein intake under SFC but no effect under HMC, leading to CG ©7SRU interactions on DM and crude protein intakes. Neither type of CG nor SRU supplementation affected milk production except that cows fed HMC-based diets tended to decrease energy-corrected milk yield compared to those fed SFC-based diets. Utilization of HMC in the diet had a tendency to increase dairy efficiency based on milk yield over SFC utilization. Cows fed HMC diets gained more body weight (BW) than those fed SFC diets, whereas supplementing SRU tended to reduce BW gain regardless of type of CG. Cows fed HMC diets shifted more net energy into BW compared with those fed SFC diets, whereas supplementing SRU tended to decrease a portion of net energy partitioned into BW gain under both SFC and HMC diets. Dietary treatments exerted minor impacts on ruminal fermentation profiles. Feeding HMC diets decreased fecal N excretion compared with SFC diets. In addition, supplementing SRU increased fecal N excretion under SFC, but it was decreased by SRU with HMC, leading to an interaction between CG and SRU. These collective results demonstrate that feeding HMC with SRU can be a practical option in high-forage lactation diets to maintain or improve nutrient and energy utilization efficiency and minimize negative environmental impacts.
Effects of Fineness of Grinding and Conservation Method of Corn Grain on Ruminal and Whole Tract Digestibility, Ruminal Microbial Protein Production, and Feeding Behavior of Holstein Heifers Before and After Calving
Author: Yun YingPublisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 230
Book Description
The Effect of Fineness of Grinding Grain on Milk Production
Author: Thomas M. OlsonPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 20
Book Description
Effects of Forage Particle Size and Carbohydrate Fermentability on Rumen Fermentation and Performance of Lactating Dairy Cows
Author: Karen Marie KrauseForage Fiber Analyses (apparatus, Reagents, Procedures, and Some Applications)
Author: H. K. GoeringEffects of Lasalocid and Corn Grain Particle Size on Performance, Rumen Parameters and Feeding Behavior of Early Lactation Dairy Cattle
Author: Katharine Frost KnowltonPublisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 214
Book Description
Author: