Digital Commons Network^™

G97-1320 Feeding To Maximize Milk Solids, Rick J. Grant

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes feeding guidelines to increase production of solids-corrected milk.

Proper feeding management of the dairy herd can improve the economy of production and provide for a healthier cow. Feeding to increase production of milk with maximum levels of milk fat and protein is essential for achieving these benefits.

Milk solid components include fat, protein, lactose, and minerals. Normal values for milk fat range from 3.7 percent (Holstein) to 4.9 percent (Jersey); milk protein ranges from 3.1 percent (Holstein) to 3.8 percent (Jersey). Lactose is usually 4.6 to 4.8 percent for all breeds and minerals (ash) average .74 percent. …

Center For Grassland Studies Newsletter, Winter 1997, Volume 3, No. 1

Center for Grassland Studies: Newsletters

Contents:

New Nutritional Information For Beef Producers in 1997 Nebraska Beef Report by Dennis Brink, Department of Animal Science, UNL

IANR Employees Recognized at Nebraska Turfgrass Conference

New CAST report: Grazing on Public Lands

Pasture Songbirds by Laura Paine and Dan Undersander, Department of Agronomy, University of Wisconsin

U.S. Forest Service Revising Grassland Management Plans by Tom Domek, Nebraska National Forest

Sandhills Partnership Receives Grant for Fen Restoration

Nf97-349 Tips For Eating Healthy When Dining Out, Janice Boyce

University of Nebraska-Lincoln Extension: Historical Materials

The National Restaurant Association reported that Americans spent 44 percent of their food dollars outside the home in 1996, compared to 25 percent in 1955. While more consumers are eating out, they also are requesting foods that are healthier.

How is the food service business responding to consumer demand for foods that are prepared in a healthier way? Both chefs and restaurant owners/managers are adding healthier food choices to their menus. So can you, as a consumer, eat out and be healthy at the same time? Yes. By following the tips given here, consumers can dine on restaurant food and …

Center For Sustainable Agricultural Systems Newsletter, January/February 1997

Center for Sustainable Agricultural Systems: Newsletter (1993–2000)

Contents:

Economic, Environmental and Sociological Effects of Whole-farm Production Systems in Eastern Nebraska: Classifying Producers/Production Systems

SARE Producer Grants Due May 1

RR Soybeans: Delaying the Inevitable?

New Sustainable Agriculture Information Retrieval Service on the Internet

Integrated Farm Update: Windbreaks Increase Pepper Yields

Southern Region Meets to Discuss Sustainable Agriculture Education

Study Associates Nitrate in Drinking Water with Greater Cancer Risk

Northeast Research And Extension Center Vip Tour 1997

Haskell Agricultural Laboratory (Northeast Research and Extension Center)

Contents:
Welcome by Robert D. Fritschen
Swine Research by Michael Brumm
Beef Research by Terry Mader
Human Nutrition by Darlene Martin
4-H & Youth by Vickie Greve
CRP Research to Crops by Melinda McVey McCluskey
Entomology: Bt Transgenic Corn by Jerry Echtenkamp and John Witkowski
Forestry in Nebraska by Steve Rasmussen
Narrow Row Planting Patterns in Corn by Mark Langrud
Crop Residue Management: Manure Injection by David Shelton
Crop Nutrition by Charles Shapiro
Soil Water Management by William Kranz

Nebline, January 1997

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Agribusiness education: a priority for Extension!
NEBLINE survey completed
Disease-resistant plants
The most common houseplant disease
Over the garden fence
Plants to decrease indoor pollution
New 4-H horticulture classes for Lancaster County Fair
New 4-H horticulture garden program
Tree hotel
Illegal insecticide use threatens health
Hibernation happenings
Newly-discovered magnet producing bacteria may clean environment
January is nota slow month for some pesky pests
Are any two alike? Snowflakes
Snug in the snow
Crop protection clinics
Pork production seminar
Cash in on hay marketing opportunities
Dormant planting grasses and legumes
1997 pesticide applicator training
Use soil tests to improve alfalfa production …

Association Between Plasma Homocysteine, Vitamin Status, And Extracranial Carotid-Artery Stenosis In The Framingham Study Population, Jacob Selhub, Paul F. Jacques, Andrew G. Bostrom, Ralph B. D'Agostino, Peter W. F. Wilson, Albert J. Belanger, Daniel H. O'Leary, Philip A. Wolf, David Rush, Ernst J. Schaefer, Irwin H. Rosenberg

United States Public Health Resources

Recent epidemiologic studies suggest that elevated homocysteine concentrations in plasma represent a risk factor for vascular disease and stroke. In the present study, we analyzed plasma samples from the 20th biannual examination of the Framingham Heart Study cohort to determine distribution of plasma homocysteine concentrations, with emphasis on relationships to vitamins that are involved in homocysteine metabolism and prevalence of carotid artery stenosis. Results showed that homocysteine was positively correlated with age. After controlling for age and sex, homocysteine exhibited strong inverse correlation with plasma folate, and weaker correlations with plasma vitamin B₁₂ and pyridoxal- 5' -phosphate. Homocysteine was …

Cystathionine Β-Synthase Deficiency: Metabolic Aspects, S. Harvey Mudd

United States Public Health Resources

Cystathionine β-synthase (CBS) deficiency was first demonstrated in 1964 in an eight-year-old mentally retarded girl with bilaterally dislocated optic lenses who excreted abnormally elevated amounts of homocystine in her urine. Patients with similar metabolic abnormalities and clinical findings had first been discovered 2 years earlier by Carson and her colleagues during a survey of mentally backward children in Northern Ireland. CBS deficiency has proven to be the most frequently encountered of the human genetic diseases causing homocystinuria and severe hyperhomocyst(e)inemia. Worldwide, it is detected with a frequency of about 1: 344,000 by screening programs of the newborn, but this is …

Blood Homocysteine Levels In The National Health And Nutrition Examination Survey (Nhanes Iii) In The United States: Preliminary Findings By Age And Sex, Irwin H. Rosenberg, Jacob Selhub, Paul F. Jacques, Barbara A. Bowman, Elaine W. Gunter, Clifford L. Johnson, R. S. Murphy

United States Public Health Resources

Evidence from scores of observational studies from many parts of the world have demonstrated an association between elevated blood total homocysteine levels and the risk of cardiovascular disease, peripheral vascular disease, and stroke. These conditions are more prevalent in males than in females in virtually all populations studied, and their prevalence increases with advancing age. A much smaller body of data exists that describes an increasing tendency to higher homocysteine levels with increasing age.

There have been no previous reports of blood homocysteine levels measured in a cross-sectional sample throughout the age spectrum from childhood through the elderly. However, the …

The Etiology Of Neural Tube Defects, J. M. Scott, D. G. Weir, A. Molloy, J. Mcpartlin, Leslie Daly, P. Kirke, M. Conley, J. Lee, J. Mills

United States Public Health Resources

Evidence continues to confirm that periconceptional ingestion of folic acid can prevent neural tube defects, although the basis of this prevention has been unclear. To further elucidate the mechanism by which this occurs, blood samples were collected from more than 50,000 pregnant women and the samples analyzed for red cell folate, plasma folate, plasma vitamin B12, and plasma homocysteine levels. Based on the results, it appears that the beneficial effect of folic acid is in overcoming a metabolic block in a folatedependent enzyme or transport process. It is likely that methionine synthase may be directly or indirectly involved.

The neural …

Proceedings, The Range Beef Cow Symposium Xv. December 9, 10 And 11, 1997, Rapid City, South Dakota

Range Beef Cow Symposium

The Range Beef Cow Symposium is sponsored by the Cooperative Extension Service and Animal Science Departments of South Dakota State University, Colorado State University, the University of Wyoming and the University of Nebraska. The Symposium has a reputation of being an excellent educational program for commercial cow-calf producers, industry and Extension personnel. It is held every other year with the location rotating among the cooperating states.

Agenda and Proceedings Contents

Morning Ramrod: Dr. Jim Males, Head, Department of Animal & Range Sciences, South Dakota State University

Welcome - Dr. Robert Wagner, President, South Dakota State University

Industry Issues

Food Safety …

Tolerance Of Eastern Gamagrass To Excess Aluminum In Acid Soil And Nutrient Solution, C. D. Foy

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Eastern gamagrass, Tripsacum dactyloides L., has been reported to tolerate a wide variety of soil conditions, including drought, flooding, and acidity, but its specific tolerance to aluminum (Al) has not been tested. One strain of this species, PMK Select Lot 94 SFG-1, was tested for its tolerance to excess Al in an acid, Al-toxic Tatum subsoil (clayey, mixed, thermic, Typic Hapludult) and in nutrient solutions containing Al. Roots were able to penetrate unfertilized Tatum subsoil at pH levels as low as 4.1-4.2 (1:1 soil-water), at Al saturations of 64 to 77% of CEC, and to tolerate Al concentrations in nutrient …

Cysteine From Feather Meal And Sulfur Amino Acid Requirements For Growing Steers, Mark Klemesrud, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Ninety individually fed steers were used to determine how cysteine from feather meal could replace dietary methionine in meeting their requirements for sulfur amino acids. Treatment proteins included blood meal, blood meal plus incremental levels of feather meal or blood meal plus incremental levels of rumen-protected methionine. Addition of sulfur amino acids to blood meal from feather meal or rumen-protected methionine improved average daily gain (P < .05). Rumen-protected methionine elicited a greater gain response than feather meal (P < .05). Feather meal can provide some of the sulfur amino acids lacking in blood meal. However, additional methionine may further improve performance.

Supplemental Protein On Performance Of Lactating Beef Heifers, Gene H. Deutscher, Don C. Adams, Duane Farthing, Jim Lamb, David Colburn, Merlyn K. Nielsen

Nebraska Beef Cattle Reports

Feeding supplement with meadow hay increased weights and rebreeding performance of lactating 2-year-old heifers. Exposing non-cycling heifers to bulls two weeks before normal breeding and flushing on green grass stimulated cycling.

Evaluating Breakeven For Various Management Systems For Different Breed Types From Weaning To Slaughter, Cynthia Hayden, Ivan G. Rush, Burt Weichenthal, Brad Van Pelt

Nebraska Beef Cattle Reports

Maximizing summer pasture gain after utilizing cornstalk grazing resulted in lower overall cost of production.

Evaluation Of Feather Meal For Cows Grazing Cornstalks, D. J. Jordon, Terry J. Klopfenstein, Mark Klemesrud, Drew Shain

Nebraska Beef Cattle Reports

Replacing soybean meal with Sunflower/feather meal is an effective alternative when supplementing cows and heifers grazing corn residue while saving about $50 per ton in ingredient cost.

Comparative Grazing Of Corn And Soybean Residue, D. J. Jordon, Terry J. Klopfenstein, Mark Klemesrud, Drew Shain

Nebraska Beef Cattle Reports

Cattle gain faster on cornstalks than on a combination of soybean stubble and cornstalks.

Biochemical Characterization Of A Peptidase Enzyme From The Ruminal Bacterium Prevotella Ruminicola, Humberto Madeira, Mark Morrison

Nebraska Beef Cattle Reports

The characterization by molecular biology techniques of a bacterial enzyme involved with ruminal protein digestion brings new insights and strategies which seek to optimize protein nutrition of beef cattle.

Variability In Metabolic Rate, Feed Intake And Fatness Among Selection And Inbred Lines Of Mice, D. E. Moody, Daniel Pomp, Merlyn K. Nielsen

Department of Animal Science: Faculty Publications

Mouse populations differing in metabolic rate have been developed through selection for high (MH) and low (ML) heat loss (HLOSS), along with randomly selected controls (MC). Objectives of this study were to (a) compare MH, ML and MC lines for HLOSS and correlated traits of feed intake, body composition and organ weights; (b) compare three widely used inbred mouse lines with MH, ML and MC for the same traits ; and (c) investigate potential genotype by diet interaction resulting from feeding diets differing in fat percentage. Heat loss (kcal/day) of MH and ML mice differed by 37% of the mean …

Divergent Selection For Heat Loss In Mice: I. Selection Applied And Direct Response Through Fifteen Generations, Merlyn K. Nielsen, L. D. Jones, B. A. Freking, J. A. Deshazer

Department of Animal Science: Faculty Publications

Divergent selection for heat production/ loss (kcal•kg^-.75•d^-1) , measured in 9- to 11-wk-old male mice, was conducted for 15 generations. Heat loss was measured for 15 h on individual animals placed overnight in direct, gradient-layer calorimeters. Selection for high (MH) and low (ML) heat loss and unselected control (MC) occurred in each of three replicates for a total of nine unique lines. Repeatability of the heat loss measurement was .45 and the CV was 10.5%. Cumulative realized selection differentials, averaged for the three replicates, were 145.1 and -105.0 (kcal•kg^-.75•d^-1) and ranged from …

Limiting Amino Acids In Meat And Bone And Poultry By-Product Meals, M. J. Klemesrud, Terry Klopfenstein, Austin Lewis, D. H. Shain, D. Herold

Department of Animal Science: Faculty Publications

In situ, digestion, and growth studies were conducted to evaluate four meat and bone meals and six poultry by-product meals as sources of escape protein and to predict the first-limiting amino acid for growing calves. Escape protein values, determined by 12-h in situ incubation, ranged from 41.7 to 51.0% of CP for meat and bone meals; poultry by-product meals ranged from 32.0 to 39.8%. True protein digestion in the gastrointestinal tract of lambs differed among protein sources ( P < .05), ranging from 79 to 95%. In each of three growth trials, 60 steers (258 ± 24, 241 ± 23, and 230 ± 16 kg for Trials 1, 2, and 3, respectively) were supplemented with 4 of the 10 protein sources along with a urea supplement. Protein sources were fed at 30, 40, 50, and 60% of the supplemental CP, with urea supplying the remainder. Protein efficiency differed among treatments ( P < .10), ranging from .61 to 1.55. Amino acid composition was determined for each protein source, and the individual metabolizable amino acids were regressed on the protein efficiency values. Escape protein values were correlated (R² = .75) with protein efficiency but had a negative slope. Metabolizable methionine was the only amino acid moderately correlated (R …

Development Of Gilts And Boars For Efficient Reproduction, Donald G. Levis, Vernon D. Leibbrandt, Dale W. Rozeboom

Department of Animal Science: Faculty Publications

Successful introduction of replacement gilts and boars into the breeding herd is an important aspect of breeding herd efficiency. To attain herd efficiency, females must ovulate adequate numbers of viable ova, express estrus, show willingness to mate, and conceive in a regular manner. Males must produce adequate numbers of fertile spermatozoa, possess ability and show willingness to mate, and produce high-conception rates. If these qualities are properly developed, pregnancy rate and litter size will be maximized.

Nf97-324 Returning Crp Land To Crops: Cool-Season Grass Management/Cropping Suggestions, Keith J. Jarvi, Melinda Mcvey Mccluskey, William L. Kranz, Steven D. Rasmussen, Charles A. Shapiro, David P. Shelton, John F. Witkowski, Richard T. Clark, Terry Gompert, Scott E. Hygnstrom, Alex Martin, David Holshouser

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact contains suggestions for returning CRP land to crop production.

Nf97-343 Returning Crp Land To Crops: Warm-Season Grass Management/Cropping Suggestions, Charles A. Shapiro, Melinda Mcvey Mccluskey, Jerry Echtenkamp, William L. Kranz, Steven D. Rasmussen, David P. Shelton, Keith J. Jarvi, John F. Witkowski, Lisa Lunz, Robert Frerichs, Mari Lubberstedt, Ray Brentlinger, Jim Nelson, Pat Bathke, Richard T. Clark, Terry Gompert, Scott E. Hygnstrom, Alex Martin, David Holshouser, Swami Manickam

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact has information on returning CRP land to crop production including tillage and no-till recommendations.

G97-1342 Feeding Value Of Alfalfa Hay And Alfalfa Silage, Terry L. Mader, Todd Milton, Ivan G. Rush, Bruce Anderson

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the feeding value of alfalfa under different harvesting, storage and feeding methods, as compared to other protein sources.

In Nebraska, alfalfa is used primarily as a protein source. However, for cow-calf producers it can sometimes be an economical energy source, depending on the prevailing price of feed grains and other sources of energy.

Alfalfa is generally harvested as dry hay or as silage (65 percent moisture). Ensiling at 45 to 55 percent moisture is also common, particularly if the alfalfa is stored in an upright oxygen-limiting structure. Regardless of harvesting and storage methods, some dry matter and …

Ec97-219 1997 Nebraska Swine Report, Duane Reese

University of Nebraska-Lincoln Extension: Historical Materials

The 1997 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. This publications deals with research on swine reproduction, breeding, health, nutrition, economics, and housing.

Ec97-274 Management Of Replacement Gilts For Efficient Reproduction, Donald G. Levis

University of Nebraska-Lincoln Extension: Historical Materials

Successfully introducing replacement gilts into the breeding herd is an important aspect of breeding herd efficiency. To attain herd efficiency, females must ovulate adequate numbers of viable ova, express estrus, show willingness to mate and conceive in a regular manner. If these qualities are properly developed, pregnancy rate and litter size will be maximized. A gilt development and management program needs to be designed for gilts from birth to farrowing their first litter.

G97-1335 Determining Crop Available Nutrients From Manure, Richard K. Koelsch, Charles A. Shapiro

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the availability and utilization of manure nutrients for field crop production. When managed correctly, nutrients in livestock manure can be a valuable resource. When managed improperly, however, these same nutrients represent a potential environmental pollutant. Accurate crediting of manure nutrients within a total crop nutrient program is fundamental to utilizing manure as a resource. This NebGuide illustrates how to estimate the crop available manure nutrients (Part c, Figure 1) and calculate an agronomically based manure application rate.

G97-1334 Estimating Manure Nutrients From Livestock And Poultry, Richard K. Koelsch, Charles A. Shapiro

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses a procedure for estimating the quantity of nutrients in livestock manure. When managed properly, nutrients in livestock manure can be a valuable resource. When managed improperly, however, these same nutrients become a potential environmental pollutant. Accurate crediting of manure nutrients within a total crop nutrient program is fundamental to utilizing manure as a resource. This NebGuide will help producers estimate the total manure nutrients (N, P and K) produced by their livestock and show how to adjust for losses for various storage and handling situations.

1997 Nebraska Swine Report, Duane E. Reese

University of Nebraska-Lincoln Extension: Historical Materials

This publication was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. It deals with the results that were done in reproduction, breeding, health, nutrition, seconomics and housing of swine.