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Effects of cutting height and maturity on the nutritive value of corn silage for lactating cows1,2
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ABSTRACT
We studied the effect of increasing the cutting height of whole-plant corn at the time of harvest from 12.7 (NC) to 45.7 (HC) cm on yield and nutritive value of silage for dairy cows. Three leafy corn silage hybrids were harvested at NC and HC at about 34% dry matter (E) and 41% DM (L) and ensiled in laboratory silos. Increasing the height of cutting lowered yields of harvested DM/ha. In addition, the concentrations of DM and starch were higher but the concentrations of lactic acid, crude protein, neutral detergent fiber (NDF), and acid detergent fiber were lower in HC than in NC. ...
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A Comparison of Processed Conventional Corn Silage to Unprocessed and Processed Brown Midrib Corn Silage on Intake, Digestion, and Milk Production by Dairy Cows*
; ...hybrid on the nutritive value of corn silage for lactating...evaluating the nutritive value of processed...conventional corn silage and PBMR. Thus...composition and nutritive value of BMR corn silage for lactating...
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Technical Note: A Near-Infrared Reflectance Spectroscopy Technique to Predict Particle Size of Starch Within Corn Silage
; ...particle size characteristics of 81 diverse corn silage samples, which included 27 combinations...each screen and on the pan for each corn silage was determined, and geometric mean particle...types of samples: 1 mm of dried ground corn silage; whole undried, unground corn ...
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Corn silage managment: Effects of hybrid, maturity, inoculation, and mechanical processing on fermentation characteristics
; ...processing, and inoculation of corn silage on fermentation characteristics...experiment 1, Pioneer hybrid 3845 corn silage was harvested at three maturities...blackline). In both experiments, corn silage was harvested at each maturity...
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Corn silage management I: Effects of hybrid, maturity, and mechanical processing on chemical and physical characteristics
; ...Particle size of corn silage and orts that contained corn silage was reduced when...with unprocessed corn silage. (Key words: corn silage, mechanical processing...length-of-cut. INTRODUCTION Corn silage is a major source...characteristics of corn ...
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Effect of Corn Silage from an Herbicide-Tolerant Genetically Modified Variety on Milk Production and Absence of Transgenic DNA in Milk
; ...detected in bovine milk. The nutritive value, fermentation characteristics...words: genetically modified corn silage, nutritive value, milk production, DNA detection...either as a whole crop such as corn silage, or as specific crop components...
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Effect of Length of Cut and Kernel Processing on Use of Corn Silage by Lactating Dairy Cows
; ...kernel processing (KP) of whole plant corn silage on nutrient intake and digestibility...was harvested at 1.90 cm without KP. Corn silage provided 38% of the dietary dry matter...improved by KP compared with unprocessed corn silage. Starch digestibility was greater for...
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Effects of tallow in diets based on corn silage and alfalfa silage on digestion and nutrient use by lactating dairy cows
; ...diets in a 2 x 3 factorial arrangement were based on either high corn silage (40:10 corn silage to alfalfa silage, % of dry matter) or high alfalfa silage (10:40 corn silage to alfalfa silage, % of dry matter) and contained 0, 2, or 4% tallow...
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Corn silage management: Effects of hybrid, chop length, and mechanical processing on digestion and energy content
; ...in the theoretical length of cut of corn silage increased the average length of cut...lower for cows fed diets containing corn silage harvested at a short chop length (11.1 mm) than for corn silage harvested at a long chop length (39...
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Effects of corn silage processing and amino acid supplementation on the performance of lactating dairy cows1
; ...supplementation on dairy cow performance. Corn silage processed (PCS) or unprocessed (UCS...fed ad libitum TMR comprising 45% of corn silage plus 1 kg of grass hay once a day. The...whether it was used with processed corn silage or with unprocessed corn silage. These...
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Influence of Ensiling Temperature, Simulated Rainfall, and Delayed Sealing on Fermentation Characteristics and Aerobic Stability of Corn Silage
; ...fermentation and aerobic stability of corn silage. One-half of each of 4 replicated, 6...was used for the study. Wetting the corn silage increased concentrations of NH^sub 3...study indicates that the fermentation of corn silage is adversely affected by wet conditions...
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