scholarly journals Supplementation of different level of corn silage with linseed meal on performance of black head Ogaden sheep fed grass hay

2016 ◽  
Vol 4 (3) ◽  
pp. 101
Author(s):  
Yohannes Urgesa ◽  
Getachew Animut ◽  
Mohammed Yusuf
Keyword(s):  
Corn Silage ◽  
Linseed Meal ◽  
Grass Hay ◽  
Black Head

COPPER TO MOLYBDENUM RATIO AND MOLYBDENUM AND COPPER CONCENTRATIONS IN RUMINANT FEEDS

1971 ◽  
Vol 51 (1) ◽  
pp. 193-200 ◽  
Author(s):  
J. E. MILTIMORE ◽  
J. L. MASON
Keyword(s):  
British Columbia ◽  
Copper Deficiency ◽  
Corn Silage ◽  
The Other ◽  
Grass Hay ◽  
Extreme Variability ◽  
The Mean ◽  
Low Levels ◽  
High Concentrations ◽  
Mean Concentration

Molybdenum and Cu concentrations and Cu/Mo ratios were determined on samples of legume hay, grass legume hay, grass hay, sedge hay, oat forage, corn silage and grains throughout British Columbia. In addition, the relationships between Cu distribution and both Mo concentration and the Cu/Mo ratio were determined for all feeds. The critical Cu/Mo ratio was selected as 2.0, and samples with ratios below 2.0 would be expected to cause conditioned copper deficiency. Sedge hays had a mean Cu/Mo ratio of 2.1, which was less than half the mean ratio of 4.4 for grass hays. The mean ratios for the other classes of feed were 5.0 or higher. Notwithstanding the favorable mean ratios, 19% of all samples had ratios below 2.0. The lowest Cu/Mo ratio was 0.1 and the highest was 52.7, which shows extreme variability. Molybdenum concentrations were generally low, with 35% of all samples below 1 ppm Mo. There were no unusually high Mo concentrations, as only 1% of all feeds were above 8.0 ppm Mo and the highest value was 9.9 ppm. Copper concentrations were low. Fourteen percent of all samples were below 3.0 ppm and 95% of all samples were below 10.0 ppm. Legume feeds had a mean Cu concentration of 7.5 ppm, in contrast to sedge hays which had a mean concentration of 3.3 ppm Cu. As Cu concentrations increased in all feeds the Cu/Mo ratios also increased, when all feeds were considered in one compilation. Molybdenum concentrations were high, then decreased, but increased to the same high concentrations as Cu concentrations increased. These data indicate an unexpectedly high and nutritionally important variability in Cu/Mo ratios, and add further support to our previous report of extensive low levels of Cu. Both Cu and Mo analyses are required to predict the need for Cu supplementation. This appears to be the first extensive report on Cu/Mo ratios in feeds.

EFFECTS OF SUPPLEMENTAL HAY ON CONSUMPTION OF LOW AND MEDIUM DRY MATTER CORN SILAGE BY HIGH-PRODUCING DAIRY COWS

1972 ◽  
Vol 52 (3) ◽  
pp. 491-495 ◽  
Author(s):  
D. E. WALDERN
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Dry Matter ◽  
Body Weight Gain ◽  
Corn Silage ◽  
Daily Production ◽  
Lactating Cows ◽  
Orchard Grass ◽  
Grass Hay ◽  
Daily Body Weight

The effects of supplementing low (23.9%) dry matter (DM) and medium (28.9%) DM corn silage roughage rations fed ad libitum to high-producing dairy cows, with orchard grass hay at 0.7% of their body weight on milk production and composition, was determined in a double reversal feeding trial using 24 lactating cows. Cows fed medium DM corn silage consumed 15.2% more DM/100 kg body weight daily than those cows fed low DM silage (P < 0.05). Supplemental hay fed with either low or medium DM silage resulted in equal consumption of total forage DM/100 kg body weight by cows on the two treatments. Each kilogram of hay DM consumed by cows offered low DM corn silage reduced silage DM intake by 0.47 kg, whereas hay DM intake reduced silage DM intake by 0.79 kg for cows offered medium DM silage. Daily production of 4% fat-corrected milk (FCM), percent nonfat solids (SNF), and daily body weight gain were lower for cows consuming low DM corn silage than for those on the other treatments (P < 0.05). Cows consuming low DM corn silage plus orchard grass hay at 0.7% of their body weight produced milk at the same level and of similar protein, lactose, and SNF content as those fed medium DM silage plus hay. Supplemental hay fed with medium or low DM corn silage increased FCM production over feeding silage alone, independent of DM or moisture content of the silage fed (P < 0.05).

scholarly journals PSIX-41 The potential for different supplement sources to reduce frothy legume bloat based on in vitro degradation characteristics

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 390-391
Author(s):  
Ronald J Trotta ◽  
Kendall C Swanson
Keyword(s):  
Initial Rate ◽  
Rumen Fluid ◽  
In Vitro Digestion ◽  
Corn Silage ◽  
Distillers Grains With Solubles ◽  
Dried Distillers Grains ◽  
Grass Hay ◽  
Wheat Middlings ◽  
Digestion Kinetics

Abstract Previous research has shown that supplementation of corn silage or grass hay can reduce the incidence of frothy legume bloat in cattle. However, forage-based supplements may not be the most feasible supplements due to the infrastructure required for harvest, storage, and feeding. The objective of this experiment was to evaluate the effects of different supplement sources, commonly available in the upper Midwest, on in vitro digestion kinetics and extent of digestion of alfalfa-based diets. Two ruminally-cannulated steers (928.1±25.5 kg BW) were fed alfalfa hay at 2.0% of BW and served as donors of rumen fluid. Treatments were early-bud alfalfa (CON) or a combination (DM basis) of 80% early-bud alfalfa with 20% of corn silage (CS), brome grass hay (BGH), soybean hulls (SBH), beet pulp (BP), corn grain (CORN), dried distillers’ grains with solubles (DDGS), or wheat middlings (MIDD). Tubes were incubated for 0, 3, 6, 9, 12, 15, 18, 21, 24, 48, or 72-h and assessed for rate and extent of digestion. Samples were run in duplicate and replicated over 4 days. Data were analyzed using the GLM procedure of SAS. Measurements reported are from the 48-h incubation. Apparent DM and OM digestibility was increased (P &lt; 0.001) with SBH, BP, CORN, and MIDD and decreased with BGH. True DM digestibility was increased (P &lt; 0.001) with SBH, BP, CORN, and DDGS and decreased with BGH. All treatments besides BGH and MIDD reduced (P &lt; 0.001) NDF digestibility in comparison to CON. All treatments besides BP reduced (P &lt; 0.001) the absolute initial rate (3-h) of apparent DM digestion, and SBH had the lowest rate. These data show that SBH increases the extent of digestion, while reducing the initial rate of degradation, suggesting that SBH has potential to reduce the incidence of frothy legume bloat as an alternative to corn silage or grass hay.

scholarly journals Cattle Diets Strongly Affect Nitrous Oxide in the Rumen

2018 ◽  
Vol 10 (10) ◽  
pp. 3679 ◽  
Author(s):  
Katrin Gerlach ◽  
Alexander J. Schmithausen ◽  
Ansgar C. H. Sommer ◽  
Manfred Trimborn ◽  
Wolfgang Büscher ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Nitrous Oxide ◽  
Dry Matter ◽  
Latin Square ◽  
Corn Silage ◽  
Gaseous Emissions ◽  
Grass Hay ◽  
Alfalfa Silage ◽  
Ch4 And N2o

This study aimed at assigning climate-relevant gaseous emissions from ruminants to animal- or feed-related origin. Three adult rumen-cannulated German Holstein steers and three forage types (corn silage (CS), alfalfa silage (AS) and grass hay (GH)) were used in a 3 × 3 Latin square design. Each period consisted of 12 days (d), during which animals received 10 kg dry matter/day of one forage as sole feed. Gaseous samples from forages and the steers´ rumen were taken and analyzed for CO2, CH4, and N2O using gas chromatography. There were large differences in the amounts of CO2 and N2O emitting from the forage types. Most N2O came from AS and only small amounts from GH and CS. Results indicate that fermented forages rich in nitrogen can release climate-relevant N2O. The highest CO2 amounts were measured in CS. Methane was not detected in any forage sample. Animals consuming CS showed slightly lower CH4 concentrations in the rumen gas sample than animals fed AS or GH. Big differences were found for ruminal N2O with the highest concentration after AS ingestion such that the N2O measured in the rumen seems to originate from the used feedstuff.

scholarly journals Corn Silage with and without Grass Hay for Lactating Dairy Cows

1973 ◽  
Vol 56 (7) ◽  
pp. 915-922 ◽  
Author(s):  
J.B. Holter ◽  
W.E. Urban ◽  
W.S. Kennett ◽  
C.J. Sniffen
Keyword(s):  
Dairy Cows ◽  
Corn Silage ◽  
Lactating Dairy Cows ◽  
Grass Hay

Preliminary results of the optimization of biogas production at the biogas station of the national research institute of animal production in Grodziec Sląski – Kostkowice

2015 ◽  
Vol 2 (3) ◽  
pp. 26-31
Author(s):  
K. Węglarzy ◽  
Yu. Shliva ◽  
B. Matros ◽  
G. Sych
Keyword(s):  
Agricultural Production ◽  
Crude Protein ◽  
Biogas Production ◽  
Electric Energy ◽  
Corn Silage ◽  
Industrial Wastes ◽  
Organic Mass ◽  
National Research Institute ◽  
Digestion Process ◽  
By Products

Aim. To optimize the methane digestion process while using different recipes of substrate components of ag- ricultural origin. Methods. The chemical composition of separate components of the substrate of agricultural by-products, industrial wastes, fats of the agrorefi nery and corn silage was studied. Dry (organic) mass, crude protein (fat) fi ber, loose ash, nitrogen-free exhaust were estimated in the components and the productivity of biogas was determined along with the methane content. These data were used as a basis for daily recipes of the substrate and the analysis of biogas production at the biogas station in Kostkowice. Results. The application of by-products of agricultural production solves the problem of their storage on boards and in open containers, which reduces investment costs, related to the installation of units for their storage. Conclusions. The return on investment for obtaining electric energy out of agricultural biogas depends considerably on the kind of the substrate used and on technological and market conditions.

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