Digital Commons Network^™

Pigs May Need More Protein, N W. Godfrey

Journal of the Department of Agriculture, Western Australia, Series 4

Results of trials indicate that meatmeal based rations of 18 to 20 per cent protein may improve carcase quality and give better returns.

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

State’s Dairy Industry: Bright Future [p] 3
Fermented Colostrum [p] 5
Cafeteria Choice [p] 7
Miniaturized Junipers [p] 9
Dicamba Drift [p] 12
Shrubs for Modern Landscaping [p] 14
Low-cost Protein [p] 17
A Check on Antibiotics [p] 18

An Immunochemical Study Of The Combining Sites Of The Second Lectin Isolated From Bandeiraea Simplicifolia (Bs Ii), Charles Wood, E. A. Kabat, S. Ebisu, Irwin J. Goldstein

Nebraska Center for Virology: Faculty Publications

Two lectins with different binding specificities have been isolated from extracts of seeds of Bandeiraea simplicifolia. The first, Bandeiraea lectin I [11] was specific for terminal non-reducing αDGalactosyl residues. It reacted with B substances from human ovarian cysts and with several galactomannans to form precipitin lines in agar gels. Polysaccharides with terminal αDGalactosyl residues, such as larch galactan, did not react. The lectin agglutinated B erythrocytes strongly but also reacted to a lower titre with A₁ and very weakly with A₂ erythrocytes [15, 28] indicating that terminal non-reducing αDGalNAc [24] can …

Effect Of Energy Source Prior To Parturitian And During Lactation On Piglet Survival And Growth And On Milk Lipids, R. Dean Boyd, B. D. Moser, E. R. Peo, Jr., P. J. Cunningham

Department of Animal Science: Faculty Publications

Two experiments were conducted to determine the effect of level and source of energy fed to sows prior to parturition and during lactation on birth weight, gain, and survival of piglets and fat content of the dam's milk.

Food Deprivation And The Regulation Of Meal Size In Larvae Of Chrysopa Carnea, Alan B. Bond

Alan Bond Publications

The course of repletion and the effects of food deprivation on meal size were explored in three experiments on larvae of Chrysopa carnea (Neuroptera). Feeding to repletion was found to occur within the first 30 min of exposure to food. Meal size increased as an ogival function of deprivation, up to the limit of gut capacity. Behavioral components involved in the initiation of feeding were little affected by deprivation and did not appear to be inhibited by distention of the gut. Termination of a meal may be mediated by the stimulation of prey-release behavior, rather than by inhibition of feeding.

Studies On The Feasibility Of Predicting Feedlot Performance From Certain Laboratory Grain Analyses, M. L. Galyean, D. G. Wagner, R. K. Johnson

Department of Animal Science: Faculty Publications

Data from 14 cattle feeding trials were utilized to study the relationship between several laboratory analyses and animal feed intake (INTAKE), gain (ADG) and feed efficiency (F/G). Laboratory analyses considered were 6, 12 and 24 hr in vitro dry matter disappearance (IV6, IV12, IV24, respectively); in vitro gas production in 1 hr and 6 hr (GP1 and GP6, respectively); and degree of gelatinization (GEL). A multiple regression equation with variables for treatment and trial classification, initial weight and the quadratic effect of initial weight was fit to the data. The effect of initial weight was significant for all three performance …

G78-412 Guide For Controlling Insects On Pets (Revised December 1989), John B. Campbell, David L. Keith

University of Nebraska-Lincoln Extension: Historical Materials

This guide is restricted to the most common insect pests of cats, dogs, rabbits, birds, guinea pigs, and gerbils.

Pets, like all animals, are subject to attack by certain insects. Sanitation around the area where pets are kept, cleanliness of the pets, good care and nutrition all help reduce the chance of a serious problem.

G78-389 Nutrient Requirements Of Breeding Beef Cattle, James A. Gosey, Paul Q. Guyer

University of Nebraska-Lincoln Extension: Historical Materials

The major nutrient requirements as listed in Tables 1a and b are modifications of similar tables published by the National Research Council, Nutrient Requirements of Beef Cattle, fifth edition. They have been (1) rearranged to emphasize "English" weights rather than metric; (2) modified so that daily nutrient requirements and the nutrient concentration recommendations are in closer agreement and (3) expanded to include estimated requirements for pregnant yearling heifers of heavier weight and 2 year old heifer nursing calves.

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this Issue:

From the Vice Chancellor ............................... 2

Proso Millet Row Spacing ............................... 3

A Look at Farm Corporations in Nebraska.......................... 5

Impact '77 Helps Families Strengthen Ties ....................... 6

Beep! Beep! Beep! ................... 8

Quarterly Looks Back Over 25 Years ...................... 10

Grain Sorghum Residue-A Second Crop for Grazing ....... 12

Gain Sorghum Residue-What Can You Expect? ................ 14

Coydogs Play Role in Nebraska's Wilds ................... 17

Reader Survey ......................................... 19

Genetic Method For The Preferential Elimination Of Females Of Anopheles Albimanus, J. A. Seawright, P. E. Kaiser, D. A. Dame, C. S. Lofgren

Entomology Papers from Other Sources

Recent field experiments demonstrated the possibility of using the sterile male method for the control of Anopheles albimanus Wiedemann, the most impor- tant vector of human malaria in Central America. Until now there was no practical method for excluding females from the releases of sterile males. A genetic method was developed for the preferential elimination of females during any of the four life stages. This genetic sexing system utilizes propoxur (o-isopropoxyphenyl methyl- carbamate) susceptibility as a recessive conditional lethal, a T(Y:2R) translocation, and an In(2R) inversion. The propoxur resistance allele (dominant) was linked to the Y chromosome via a radiation-induced …

Factors Affecting Twinning And Effects Of Twinning In Holstein Dairy Cattle, R. A. Cady, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Data were obtained from 23,978 calving records collected by the Eastern Artificial Insemination Cooperative's Calving Survey. The survey information included breed, parity and size of dam, date of breeding and birth, identification of sire and maternal grandsire, sex, size, and vigor of calf, and difficulty of birth. Due to small numbers of records for non-Holstein breeds, only Holstein records were used in the analyses. As parity increased, the incidence of twinning increased (P<.05). Month of birth (conception) and the size of dam measured within parity did not affect the twinning rate. The heritability of twinning, estimated using the genetic covariance between paternal half-sibs was .05 over all parities and within parity was .06, .03, and .03 for the first, second and third parities, respectively. Length of gestation for twins was 5 days less (P<.05) than for singles. In addition, twins were smaller and weaker, and their birth was accompanied by more dystocia than monoparous calves (P<.05). Neonatal mortality was four times higher (P<.05) for twins as compared to single births. In view of these facts, it does not appear that selection programs designed to increase twinning rates would be desirable for Holstein dairy cattle.

Breeding For Increased Protein Content In Milk, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

The principles of selection are reviewed as a basis for discussing selection for protein content of milk. The correlations among components of milk will cause correlated responses in all even when selection is for only one component. Selection for fractional composition of fat or protein would lead to increases in content of fat and protein, but the expected increases in total yields of fat and protein would be much less than if selection were for yield of milk, fat, or protein. Selection should be for milk, fat, and protein yield with relative economic emphasis determined by the net economic value …

Feeding Value Of Brown-Midrib Corn Silage For Lactating Dairy Cows, Joel Leigh Sommerfeldt

Electronic Theses and Dissertations

A 14 wk lactation trial was conducted to evaluate the feeding value of brown-midrib (bm₃) corn silage and its normal (N) genetic counterpart using ten Holstein cows per group averaging 6 wk post-partum at the start of the experiment. The cow were fed corn silage (bm₃ or N) ad libitum, 2.25 kg alfalfa hay/hd and grain (1 kg/3 kg milk produced) dairy. The bm₃ and N, respectively. Milk production for cows fed bm₃ and N was 25.0 and 25.5 kg/day. Fat corrected milk and solids corrected milk were similar for both groups. A total collection …

Reasons Why Cows Were Removed From The Sdsu Fairy Herd 1. Discriminant Analysis To Classify Cows With Or Without Reproductive Problems, Fred Tidemann

Electronic Theses and Dissertations

One of the keys to financial success in the dairy business is the ability of management to detect herd problems and correct them instead of culling cows. It is well known that the average productive life of the dairy cow is less than 4 yr, which is short compared with her potential life. Involuntary removal of cows causes economic loss directly as a result of its effect on yearly milk production, increased replacement cost, and indirectly because the potential selection differential is reduced with premature loss of high producing cows. The degree of culling is related to important economic considerations …

An Evaluation Of High Protein Oat Forage For Dairy Cattle, Thomas Lee Schroeder

Electronic Theses and Dissertations

As world population climbs toward the 6 billion mark predicted for the turn of the century, it becomes of grave importance that we meet the challenge of human food production. In developed nations, urban sprawl is devouring land once used for agricultural purposes, while in underdeveloped nations, malnutrition is commonplace. The technology of the 21st century will need to develop new methods and means whereby grains can be increasingly used to provide the nutritional needs of humans. Therefore, animal scientists must work toward even more efficient utilization of roughages by ruminant animals. Efficient conversion of roughages to high quality human …

Listeria Monocytogenes In The Environment Of Livestock In South Dakota, James W. Neiles

Electronic Theses and Dissertations

The purpose of this investigation is to study the incidence of Listeria monocytogenes in the environment of livestock in South Dakota. The data accumulated from these studies will provide information as to its natural habitat, mode of transmission and factors responsible for its incidence.

The Effect Of Foliar Fertilization On Soybean Yield And Leaf Necrosis, Robert Jay Goos

Electronic Theses and Dissertations

The soybean (Glycine max (L.) Merrill) is a very important world crop. The seed is rich in both protein and oil, making it a valuable human food resource. Many scientists believe that there are physiological barriers preventing increased soybean yields. Any agronomic discovery that would consistently increase soybean yields would be important to world food production. One possible yield barrier in soybeans concerns the mineral nutrition of the plant during the seed-filling stages of growth. During this period of growth, translocation of N, P, K, and S from the plant foliage to the developing seed occurs, accompanied by a virtual …

Monensin, Protein Supplementation And Tylosin For Feedlot Cattle, Roger N. Gates

Electronic Theses and Dissertations

Scientific research has made substantial contributions to the efficiency of American agriculture. Livestock producers in particular have benefited from the extensive study of animal nutrition. Nutrient requirements of animals and the nutrient composition of feeds are essential to efficient and economical feeding of farm animals. Research over many years has provided considerable information on animal requirements and feed composition. While there are still many gaps of knowledge in those areas, available information allows wise choice in selecting feedstuffs and using them in various combinations to meet animal requirements for various productive purposes. Feed costs represent the single largest expenditure in …

Pregnancy Diagnosis In The Ewe, Michael J. Trapp

Electronic Theses and Dissertations

The ability to diagnose pregnancy accurately, rapidly and economically before the last six weeks of gestation in the ewe could be of real value as a sheep management tool. An efficient non-surgical pregnancy test could enable the producer to reduce feed costs, increase percent lamb crop and select for fertility. It is important to the health of the ewe and to the survival of the lamb that highly productive animals should be adequately fed. About 75% of the fetus' growth occurs during the last trimester of pregnancy. Therefore undernutrition of the ewe during this part of pregnancy leads to the …

Effect Of Heat Treatment On Protein Quality And Utilization Of Soybean And Sunflower Meals By Dairy Cattle, Mohammad Ahrar

Electronic Theses and Dissertations

Effect of heat treatment on soybean and sunflower meal proteins were studied using in vitro and in vivo techniques. In experiment I, soybean meal (SBM) and sunflower meal (SFM) were subjected to steam heating about 120 C for 25 to 30 seconds using a commercial cooker extruder. The heat treatment was designed to reduce solubility of the SBM and SFM in the rumen, thereby allowing more soybean meal protein and sunflower meal protein to be undigestible in the rumen but still digestible in the lower digestive tract when fed to cattle. Solubilities of protein in SBM and SFM were reduced …

Plant Availability Of Aqueous Phosphates Removed By Fly Ash, Paul D. Weeldreyer

Electronic Theses and Dissertations

Recycling non-renewable resources has become increasingly. important as man has continuously expected more and more from his environment. As stated by Spendlove (1976): "Recycling certainly is not new. It appears, in fact, to be one of the most obvious laws of nature, much like the seasons, the tides, and the life and death processes. It is not surprising, therefore, that the greatest motivating force behind present recycling efforts is the worldwide concern for the deteriorating natural environment." This ever-increasing demand for more production has created the need for more stringent pollution controls to maintain an acceptable quality of life. Pollution …

Utilization Of Whole Aspen Tree Material As A Ruminant Feed Component, Mahendra Singh

Electronic Theses and Dissertations

A series of three separate experiments were conducted to determine the value of aspen tree (Populus tremuloides Michx.) as a ruminant feed component in growing, finishing and wintering rations. The entire tree, including the branches, leaves and bark, was fed to Hereford steers and commercial bred stock cows. In experiment 1, sixty steers were randomly allotted to six treatments of ten each. The six treatment rations were: 93% alfalfa as control, 12% aspen, 24% aspen, 36% aspen, 48% aspen and 48% aspen (with 4% sodium hydroxide). Soybean meal was included in aspen rations in a ratio of 40% soybean meal …

The Effects Of Added Dry Whey On Yield And Acceptability Of Cheddar Cheese, James M. Wingfield

Electronic Theses and Dissertations

Cheese production and sales are a major part of the U.S. dairy industry. Total hard cheese sales have increased 60% in the past 10 yr. Per capita consumption of cheese for the same period has risen from 2.81 kilograms (kg) to 4.03 kg for a 43% increase. In response to greater consumer demand the amount of milk utilized in cheese production has increased markedly during the past quarter century rising from the low of 10% of annual milk production in 1950 to 24% in 1976. This recent increase in cheese production emphasizes the importance of achieving maximum yields of cheese …

Effects Of Strain On Response Of Laying Hens To Low Protein Diets And Amino Acid Supplements, Ali B. Kashani

Electronic Theses and Dissertations

Corn is by far the most widely used cereal grain in the United States for poultry feeding. In addition to its high energy content, corn provides adequate amounts of the essential fatty acids for maximum rates of growth and egg production. Palatability and ample xanthophyll and provitamin A contents of fresh corn are some o the other contributing factors for its popularity in livestock feeding. The most serious limitation in the nutritional value of corn as well as other cereal grains lies in the fact that they are low in both quantity and quality of protein. It has been a …

Biomass And Nutrient Distribution In Aspen, Pine, And Spruce Stands On The Same Soil Type In Minnesota, David H. Alban, Donald A. Perala, Bryce E. Schlaegel

Aspen Bibliography

Vegetation and soils were sampled in adjacent 40-year-old stands of red pine (Pinus resinosa Ait.), jack pine (Pinus banksiana Lamb.), white spruce (Picea glauca (Moench.) Voss), and aspen (Populus tremuloides Michx., P. grandidentata Michx.) on a very fine sandy loam soil in north-central Minnesota. Total tree biomass was greatest for red pine followed by by aspen, spruce, and jack pine. Nutrient weights (N, P, K, Ca, Mg) in the trees were greatest in aspen followed generally by spruce, red pine, and jack pine. Particularly large proportions of biomass and nutrients were found in aspen bark and …

Deterioration Of Eggshell Quality And Calcium Metabolism In Laying Hens, Chang Won Kang

Electronic Theses and Dissertations

The present study was undertaken to: (1) develop a reliable method of measuring eggshell quality, (2) determine whether diet alterations that cause a somewhat reduced rate of egg production could influence shell quality, and (3) determine whether certain biochemical parameters involved in calcium metabolism are related to shell quality.

1978 Nebraska Beef Cattle Report, Leo E. Lucas, H. W. Ottoson, T. E. Hartung

Nebraska Beef Cattle Reports

Retail value of wholesale meat cuts is influenced by quality and the proportion of lean, fat and bone. Wholesale cuts vary widely in value; for example, loins and ribs sell for more than rounds, rounds more than chucks, and chucks more than flanks, plates, or briskets. This value difference has prompted many attempts to find breeding and feeding systems that will increase the proportion of high-priced cuts.

Results shown here characterize the composition of carcass wholesale cuts from 14 breed combinations that were part of a cattle germ plasm evaluation program at the U.S. Meat Animal Research Center, Clay Center, …

Profitability Of Finishing Cattle On Grain : Recent Research Results, W J. Ryan

Journal of the Department of Agriculture, Western Australia, Series 4

Some thoughts on how to finish beef cattle in time for the autumn-winter period.

Fatty Liver-Hemorrhagic Syndrome (Flhs) In Caged Laying Hens, Richard A. Nelson

Electronic Theses and Dissertations

A series of eleven experiments was conducted with caged laying hens to study the effects of diet and strain on production and fat accumulation in the liver. In Experiments 1 to 4, a normal ad libitum feeding regime was used, while in Experiments 5 to 11, a force-feeding technique was used as a procedure to increase the incidence of FLHS. Four commercial hybrid strains and a straightbred SCWL (Regional Control) strain were utilized in this study. Choline supplementation at 1500 mg/kg of diet increased egg production from 1 to 11% while decreasing total liver lipid as much as 50%. Supplementation …

The Complexity Of Measuring The Impact Of Possible Climatic Change On Agriculture, R. E. Neild

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Much geological and paleontological evidence exists of major changes in climate over widespread areas of the world including Nebraska. What is now Nebraska was once warm enough to support flora and fauna found now only in tropical areas. During the last Ice Age the climate of what is now Lincoln was similar to Igvitut at the base of the large glacier covering most of Greenland.

Recent weather fluctuations and consequent variations in essential food (Newman and Pickett, 1974), fuel, and water supplies have prompted speculation that climate is changing toward some former extreme. Massive purchases of grain by the Soviet …