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Handbook Of Waterfowl Behavior: Indexes, Paul A. Johnsgard Jan 1965

Handbook Of Waterfowl Behavior: Indexes, Paul A. Johnsgard

Handbook of Waterfowl Behavior by Paul A. Johnsgard

General index: The principal page reference for each species or group is indicated by boldface type. Subordinate page references for each species are listed only under the standardized English names used in this book, as shown in the Appendix. Commonly used alternate names, or names referring to certain races or species groups, are included in the index but only principal page references are listed under these names. Page references to illustrations of species or of specific displays are indicated by italics. The Appendix and Summary have not been indexed.

Scientific Names: This index provides a reference only to the page …

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Ec65-130 Chemicals That Control Weeds - A Guide For 1965 Jan 1965

Ec65-130 Chemicals That Control Weeds - A Guide For 1965

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 65-130 discusses chemicals that control weeds.

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Ec65-739 Last Minute Fallout Protection For Livestock, Elvin Schultz Jan 1965

Ec65-739 Last Minute Fallout Protection For Livestock, Elvin Schultz

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-739: Last-Minute fallout protection for livestock.

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Ec65-443 Leather, Gerda Petersen Jan 1965

Ec65-443 Leather, Gerda Petersen

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 65-443 discusses Leather and how to sew with it.

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Ec65-829 Nebraska Fence Laws, Harvey Perlman Jan 1965

Ec65-829 Nebraska Fence Laws, Harvey Perlman

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-829 describes the Nebraska fence laws. The author went on to be the Chancellor of the University of Nebraska - Lincoln.

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Ec65-828 Agricultural Engineer's Digest : Gluing Wood Jan 1965

Ec65-828 Agricultural Engineer's Digest : Gluing Wood

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-828: Agricultural engineers’ digest - gluing wood. Illustrates the best way to glue different types of wood.

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Ec65-820 Nebraska Farm Management : Summary And Analysis Report.....1964, Larry Bitney Jan 1965

Ec65-820 Nebraska Farm Management : Summary And Analysis Report.....1964, Larry Bitney

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-820: Nebraska farm management summary and analysis report 1964.

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Ec65-1163 Products Designed For Modern Cleaning, Clara Leopold Jan 1965

Ec65-1163 Products Designed For Modern Cleaning, Clara Leopold

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-1163 is about products designed for modern cleaning.

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Ec65-1596 Revised 1965 Corn Rootworm Control, Robert E. Roselle, Gerald Weekman Jan 1965

Ec65-1596 Revised 1965 Corn Rootworm Control, Robert E. Roselle, Gerald Weekman

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-1596 revised in 1965 is about corn rootworm control.

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Ec65-1504 Insect Control Recommendations For Small Grain, Field Beans, Soybeans, Sugar Beets In Nebraska Jan 1965

Ec65-1504 Insect Control Recommendations For Small Grain, Field Beans, Soybeans, Sugar Beets In Nebraska

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-1504 is about insect control recommendations for small grain, filed beans, soybeans, sugar beets.

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Ec65-1503 Insect Control Recommendations For Horses, Sheep, And Swine In Nebraska Jan 1965

Ec65-1503 Insect Control Recommendations For Horses, Sheep, And Swine In Nebraska

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 65-1503 is compiled by extension entomologists at the university of Nebraska and discusses insect control recommendations for horses, sheep, and swine in Nebraska.

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Ec65-633 Revised Bulk Milk Haulers Guide, T. A. Evans Jan 1965

Ec65-633 Revised Bulk Milk Haulers Guide, T. A. Evans

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 65-633: Bulk milk haulers guide, explains problems that can occur in the milk and how to deal with them.

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Ec65-436 Guide To Textile Shopping, Gerda Petersen Jan 1965

Ec65-436 Guide To Textile Shopping, Gerda Petersen

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 65-436 is a guide to textile shopping.

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Ec65-212 University Of Nebraska - Breeding Herd Management, Leo Lucas, Dwane Zimmerman, Don Hudman Jan 1965

Ec65-212 University Of Nebraska - Breeding Herd Management, Leo Lucas, Dwane Zimmerman, Don Hudman

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 65-212 discusses Breeding herd management.

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Litter Size And Proportion Of Females In The Offspring Of Multiparous Rats With Varying Uterine Metabolic Levels, A. B. Schutz Jan 1965

Litter Size And Proportion Of Females In The Offspring Of Multiparous Rats With Varying Uterine Metabolic Levels, A. B. Schutz

Department of Animal Science: Faculty Publications

The rate of TTC reduction by the uterine tissue of rats was determined at specific stages of the oestrous cycle, and in successive cycles at the same stage. Individual females showed a characteristic level of reaction to TTC. Mothers whose uteri had a high reaction rate with TTC produced litters with a higher percentage of female pups than did mothers with a low level of reaction. Previous studies have shown that TTC reduction rate represents a metabolic activity of uterine tissue that is induced by oestrogens.

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Statistics In The Design And Analysis Of Physiology Experiments, L. Dale Van Vleck, C. R. Henderson Jan 1965

Statistics In The Design And Analysis Of Physiology Experiments, L. Dale Van Vleck, C. R. Henderson

Department of Animal Science: Faculty Publications

Statistics should be considered as a tool by the animal experimenter in much the same way that a chemical analysis or a radiation counter is used as a tool. Too often statistics is considered as something magical which can restore order out of chaos and perhaps absolve the experimenter from mistakes in logic and procedure. It is true of course that the statistician through his knowledge of statistical procedures can sometimes help salvage some results from an otherwise hopelessly muddled experiment. One point must be made clear at the outset—the statistician is not a tool of the experimenter although statistics …

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Effect Of Ferrous Fumarate In The Lactation Diet On Sow Milk Iron, Pig Hemoglobin And Weight Gain, T. L. Veum, J. T. Gallo, L. Dale Van Vleck, J. K. Loosli Jan 1965

Effect Of Ferrous Fumarate In The Lactation Diet On Sow Milk Iron, Pig Hemoglobin And Weight Gain, T. L. Veum, J. T. Gallo, L. Dale Van Vleck, J. K. Loosli

Department of Animal Science: Faculty Publications

Two experiments involving 22 litters were conducted to study the effects of adding ferrous fumarate to the lactation diet on iron level of sow’s milk and on weight gains and hemoglobin levels of suckling pigs. Ferrous fumarate was not effective in increasing iron content of milk, when added to the lactation diet at a level of 1984 mg. of iron per kg. The increase in hemoglobin level observed at 24 days in Experiment I and at 21 days in Experiment II, in litters nursing sows fed ferrous fumarate, was due to the pigs’ obtaining a source of iron from the …

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Comparison Of Heritability Estimates From Daughter-Dam Regression And Paternal Half-Sib Correlation, L. Dale Van Vleck, G. E. Bradford Jan 1965

Comparison Of Heritability Estimates From Daughter-Dam Regression And Paternal Half-Sib Correlation, L. Dale Van Vleck, G. E. Bradford

Department of Animal Science: Faculty Publications

Analysis of 60,000 pairs of daughter and dam first-lactation records expressed as deviations from herd-mate averages for five breeds yielded markedly different heritability estimates from daughter-dam regression than from paternal half-sib correlation. These results suggest that 18% of the within-herd variation is due to genetic maternal effects. The same records analyzed as mature equivalent records and not as deviations but by a sire by herd model did not show this difference. Confounding between year and sire effects probably biased the intraclass correlation estimates upward in the latter analysis, since year effects were not included in the statistical model.

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Heritability Estimates When Dams And Daughters Are In The Same And Different Herds, L. Dale Van Vleck, C. L. Hart Jan 1965

Heritability Estimates When Dams And Daughters Are In The Same And Different Herds, L. Dale Van Vleck, C. L. Hart

Department of Animal Science: Faculty Publications

The regression of daughter on dam deviations of Holstein first-lactation milk production from herd-mate averages was computed for 38,440 pairs of records made in the same herd and for 10,256 pairs of records where the daughter was in one herd and the dam in another. The corresponding heritability estimates were .42 and .40, respectively, which suggest an environmental covariance of .01 between records of daughters and dams in the same herd. Other analyses were conducted for dams with two daughters with records where 1) both had records in the same herd as the dam, 2) only one had a record …

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Differences Among Appraisers In The New York Type Appraisal Program, L. Dale Van Vleck, R. Albrectsen Jan 1965

Differences Among Appraisers In The New York Type Appraisal Program, L. Dale Van Vleck, R. Albrectsen

Department of Animal Science: Faculty Publications

The purpose of the New York type appraisal program is to attempt to rate type traits objectively. Approximately 34 traits are included, of which 25 are rated by the appraiser and 9 by the herd manager. This paper reports differences among 18 appraisers, including S professional judges, 7 New York Artificial Breeders' Cooperative fieldmen, and 3 other sire selection personnel all of whom rated 38 cows in a single herd. There were statistically significant differences (P ≤ .05) among appraisers for all traits. Average scores of the professionals were different from those of the fieldmen for all except six traits. …

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Response Of Sheep And Swine To Treatments For Control Of Ovulation, P. J. Dziuk Jan 1965

Response Of Sheep And Swine To Treatments For Control Of Ovulation, P. J. Dziuk

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

Control of the estrous cycle is essential to precise research in gamete and zygote physiology and could be useful in animal husbandry. The conception rate in sheep during the breeding season following treatments to control ovulation has varied from about normal (Dauzier, 4; Robinson, 20; Evans et al., 9; Lamond and Bindon, 17; Brunner et al., 3; Hinds et al., 15), to distressingly low levels in other cases (Braden et al., 2; Davies, 5; Lamond, 16). Treatments during the anestrous season have given a variable response but usually only 30 to 50 percent of ewes lamb (Gordon, 13; 14).

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Evaluation Of Some Methods For Controlling The Bovine Estrous Cycle, R. G. Zimbelman Jan 1965

Evaluation Of Some Methods For Controlling The Bovine Estrous Cycle, R. G. Zimbelman

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

This paper will deal primarily with the evaluation of various methods to control the estrous cycle in cattle. Consideration will be given to four methods of altering the normal estrual cycle. (A) The inhibition of ovulation as a means of altering the estrual cycle appears to be receiving most attention in recent years. The bulk of this paper will deal with ovulation inhibition by progestogens; thus, it would seem appropriate to give a brief evaluation of the other three methods.

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Factors Influencing The Regression Of Corpora Lutea In The Ewe, Rabbit And Rat, H. G. Spies Jan 1965

Factors Influencing The Regression Of Corpora Lutea In The Ewe, Rabbit And Rat, H. G. Spies

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

Stages in the life of corpora lutea may be divided logically into formation, function and regression. Mechanisms controlling each stage may be independent or overlapping depending on the species. Anderson et al.,(4) have pointed to lack of current evidence to allow a clear distinction between luteinizing hormone (LH) and luteotropic hormone (LTH) in farm animals. Initial LTH release is probably sufficient to form and maintain the corpora lutea for the normal estrous cycle (Aldred et al., 1). Maintenance of corpora lutea for the normal duration of an estrous cycle in hypophysectomized ewes (Denamur and Mauleon, 6) and sows (du Mesnil …

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1965 Nebraska Swine Report Jan 1965

1965 Nebraska Swine Report

Nebraska Swine Reports

1965 Nebraska Swine Report

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Mechanisms Controlling The Formation And Persistence Of The Corpus Luteum, L. L. Anderson, R. M. Melampy Jan 1965

Mechanisms Controlling The Formation And Persistence Of The Corpus Luteum, L. L. Anderson, R. M. Melampy

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

Mechanisms which control formation of corpora lutea during the estrous cycle, and particularly factors affecting their persistence and regression in various reproductive stages, have been of considerable interest to physiologists concerned with developing methods for control of the estrous cycle in domestic animals. Some recent reviews on control of ovarian function are those by Chester Jones and Ball (30), Anderson et al. (9) and Short (121).

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The Role Of Light In The Regulation Of Cyclical Estrous Activity In Sheep, M. T. Clegg, H. H. Cole, W. F. Ganong Jan 1965

The Role Of Light In The Regulation Of Cyclical Estrous Activity In Sheep, M. T. Clegg, H. H. Cole, W. F. Ganong

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

The widespread existence of biological clocks among animals is documented by a considerable body of evidence. Recently Farner (13) has reviewed this subject covering information on a large variety of animals. In this paper an attempt will be made to restrict most of the discussion to sheep. Experimental data from other species, however, will be cited when it can be usefully related to an understanding of the mechanisms controlling seasonal breeding activity in this species. As far as present knowledge is concerned, the factors regulating or at least monitoring annual physiologic cycles appear to depend greatly upon the influence of …

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Comments And Conclusions Concerning Studies On Estrous Control In Domestic Animals, H. H. Cole Jan 1965

Comments And Conclusions Concerning Studies On Estrous Control In Domestic Animals, H. H. Cole

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

Let me allay at once any apprehension you may have that I am about to recapitulate all that has been said during the past two days. Redundancy at this time would merely accentuate your current soporific state. Thus I shall take advantage of the prerogative of seniority to modify the title of my talk to "Comments and conclusions concerning studies on estrous control in domestic animals."

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The Lifespan Of Corpora Lutea Induced During The Luteal Phase Of The Estrous Cycle In Swine., B. N. Day Jan 1965

The Lifespan Of Corpora Lutea Induced During The Luteal Phase Of The Estrous Cycle In Swine., B. N. Day

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

A more complete understanding of the mechanisms involved in the function and maintenance of the corpus luteum would be very useful in developing more effective methods of controlling the estrous cycle in farm animals. Various types and classes of experimental animals have been utilized in an effort to define the factors causing the persistence of the corpus luteum. In swine, several different experimental approaches have been made in an attempt to extend, experimentally, the functional lifespan of the corpus luteum in non-pregnant animals. Less frequently, attempts have been made to induce premature regression. In general, the procedures used to induce …

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Evaluation Of Methods For Controlling The Estrous Cycle, William Hansel Jan 1965

Evaluation Of Methods For Controlling The Estrous Cycle, William Hansel

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

Truly effective estrous cycle synchronization techniques are of great potential value to commercial producers of beef and dairy cattle, sheep, and swine. Many commercial beef cattlemen recognize the merits of using outstanding sires through artificial insemination (AI) to produce greater numbers of faster gaining cattle having the most desirable carcass characteristics. The relatively high heritability of feedlot gains makes this idea particularly attractive. Nevertheless, progress in attaining this goal has been rather slow, mainly because of the practical problems involved in breeding range cattle artificially and the low conception rates frequently obtained. Methods for cycle regulation compatible with the most …

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Native Vegetation Of Nebraska, J. E. Weaver Jan 1965

Native Vegetation Of Nebraska, J. E. Weaver

Department of Agronomy and Horticulture: Faculty Publications

Nebraska is in the central part of the prairie plains. Yet grassland is only one kind of its varied vegetation. A westward extension of the great deciduous forest occurs along the Missouri River. It is bordered by shrubs, patches of which occur in favorable places to the western border. The foothills of the northwest have a forest of pine not unlike that of the Black Hills. On the level lands and among the wind-blown hills of sand there are hundreds of lakes, swamps, and marshes. The Missouri, Platte, and Niobrara Rivers extend across the state. They and their numerous tributaries …

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