Digital Commons Network^™

Combining Ability In Forage Sorghum Hybrids, W. M. Ross, Herman J. Gorz, Francis A. Haskins, K. D. Kofoid

Department of Agronomy and Horticulture: Faculty Publications

Two cross-classified hybrid forage sorghum [Sorghum bicolor (L.) Moench] experiments were conducted at Mead, NE: Experiment 1 (3 females x 8 males), in 1973-75, and Experiment 2 (13 females x 2 males), in 1974-75. Data were collected on plant height, days to bloom, forage yield, percent dry matter (DM), percent protein, and in vitro dry matter disappearance (IVDMD) in both experiments and percent Brix in Experiment 1. Differences among hybrids averaged over females or over males were significant for each trait in one parental group or the other in each test except IVDMD in Test 1 and DM in …

Glucocorticoid Modulation Of Casein Gene Transcription In Mouse Mammary Gland, Ranjan Ganguly, Nozer M. Mehta, Nivedita Ganguly, M. R. Banerjee

School of Biological Sciences: Faculty Publications

The influence of cortisol and prolactin on casein gene expression in the mammary gland of lactating BALB/c mice was measured by using a specific cDNA probe to 15S casein mRNA (cDNA_csn). Casein mRNA (mRNA_csn) level in the mammary gland was decreased by 85% 5 days after adrenal ablation, but then was increased 4.4-fold 12 hr after a single injection of hydrocortisone-21-acetate. An 80% decrease in serum prolactin level, induced by the prolactin inhibitor 2- bromo-α-ergocryptin (CB-154), did not alter the level of mRNA_csn in the gland. Specific transcription of the casein gene in nuclei isolated …

Neoplastic Transformation Of Epithelial Cells In Whole Mammary Gland In Vitro, Nityanand T. Telang, Mihir R. Benerjee, Anand P. Iyer, Amit B. Kundu

School of Biological Sciences: Faculty Publications

Biological characteristics of nodule-like alveolar lesions (NLAL) induced by 7,12-dimethylbenz[a]anthracene (DMBA) in organ culture of whole mammary gland (BALB/c female mice) were assessed after transplantation into gland-free mammary fat pads of syngeneic virgin mice. (i)Tissue- fragment explants from NLAL areas of the gland produced abnormal lobuloalveolar (LA) outgrowths in 3 of 10 fat pads. (ii) Transplantation of dissociated cells of NLAL-derived LA outgrowths into 36 fat pads showed 100% LA outgrowths and 3 (8%) of these 36 outgrowths produced mammary carcinomas. (iii) The explants of dissociated cells from whole mammary glands treated with DMBA …

Endoparasites, John E. Ubelaker, Robert D. Specian, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The leaf-nosed bats of the New World family Phyllostomatidae occur from the southwestern United States through tropical Central and South America. Members of this family are also found throughout the Antilles. The ecological associations of the species in this family seem to be rather broad; species are found in humid tropical to semiarid and arid subtropical environments. Diversity in feeding is readily apparent ranging from nectivores (Glossophaga), frugivores (Artibeus), sanguivores (Desmodus), to omnivores (Phyllostomus) (see review by Glass, 1970; Gardner, this volume).

To understand better the biology of phyllostomatid bats, it is …

Differentiation Of Fourth And Early Fifth Stages Of Parascaris Equorum (Goeze, 1782) Nematoda: Ascaridoidea, P. A. Pilitt, J. R. Lichtenfels, P. A. Madden

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The morphology of Parascaris equorum of horses was studied; light and scanning electron microscopy were used. Late fourth-stage larvae have narrow, rectangular lips bearing few, large. triangular, irregularly spaced denticles and the lips are not markedly set off from the body. The cutick of the late fourth stage is completely transversely striated, with incomplete longitudinal ridges creating a brickwork pattern; longitudinal alae are present. Total body lengths of fourth-stage larvae range from 10 to 32 mm. A single molting fourth-stage male was found to be 33 mm long. Early fifthstage nematodes have wide, trilobate lips with a deep transverse groove …

New Records For Amphibian And Reptile Trematodes, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

From 1975 to 1978, 200 amphibians and reptiles from localities in Nebraska, Arkansas, Oklahoma, Louisiana, Mississippi, Florida, North Carolina, and West Virginia were examined for trematode parasites. This report provides additional information concerning the geographical distribution of North American amphibian and reptile trematodes. Some results have already been published (Brooks and Fusco, 1978, J. Miss. Acad. Sci. 23:95-99). Worms, removed from their hosts, were examined alive when possible, and fixed with AFA after flattening with slight coverslip pressure. Specimens were stored in 7{)1lO ethanol, then stained with Mayer's hematoxylin and mounted in Histoclad or Canada balsam for study as whole …

Differentiation Of Fourth And Early Fifth Stages Of Parascaris Equorum (Goeze, 1782) Nematoda: Ascaridoidea, P. A. Pilitt, J. R. Lichtenfels, P. A. Madden

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The morphology of Parascaris equorum of horses was studied; light and scanning electron microscopy were used. Late fourth-stage larvae have narrow, rectangular lips bearing few, large . triangular, irregularly spaced denticles and the lips are not markedly set off from the body. The cuticle of the late fourth stage is completely transversely striated, with incomplete longitudinal ridges creating a brickwork pattern; longitudinal alae are present. Total body lengths of fourth-stage larvae range from 10 to 32 mm. A single molting fourth-stage male was found to be 33 mm long. Early fifthstage nematodes have wide, trilobate lips with a deep transverse …

The American Wood Quails Odontophorus, Paul A. Johnsgard

Paul Johnsgard Collection

It is ironic that the genus of New World quails that not only has the greatest collective geographic range (from central Mexico to northeastern Argentina) but also the largest number of species (12 or more, varying with the authority), is one of the least known groups of American gallinaceous birds. This is in large measure the result of the fact that all of the species are forest-adapted, and generally are associated with tropical to sub-tropical communities, where opportunities for easy observation are virtually absent.

Not only is this the largest genus of the subfamily Odontophorinae, but also the species tend …

Order Anseriformes: From Check-List Of Birds Of The World, Paul A. Johnsgard

Paul Johnsgard Collection

SUBORDER ANSERES
FAMILY ANATIDAE

SUBFAMILY ANSERANATINAE
GENUS ANSERANAS LESSON

SUBFAMILY DENDROCYGNINAE
GENUS DENDROCYGNA SWAINSON

GENUS THALASSORNIS EYTON

SUBFAMILY ANSERINAE
GENUS CYGNUS BECHSTEIN

GENUS ANSER BRISSON

GENUS BRANTA SCOPOLI

GENUS CEREOPSIS LATHAM

GENUS STICTONETTA REICHENBACH

SUBFAMILY TADORNINAE
GENUS CYANOCHEN BONAPARTE

GENUS CHLOEPHAGA EYTON

GENUS ALOPOCHEN STEJNEGER

GENUS TADORNA FLEMING

GENUS TACHYERES OWEN

SUBFAMILY ANATINAE
GENUS PLECTROPTERUS STEPHENS

GENUS CAIRINA FLEMING

GENUS PTERONETTA SALVADORI

GENUS SARKIDIORNIS EYTON

GENUS NETTAPUS BRANDT

GENUS CALLONETTA DELACOUR

GENUS AIX BOlE

GENUS CHENONETTA BRANDT

GENUS AMAZONETTA BOETTICHER

GENUS MERGANETTA GOULD

GENUS HYMENOLAIMUS GRAY

GENUS ANAS LINNAEUS

GENUS MALACORHYNCHUS SWAINSON

GENUS MARMARONETTA REICHENBACH

GENUS RHODONESSA REICHENBACH

GENUS NETTA …

Sperm Morphology, G. Lawrence Forman, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Bishop and Austin (1957) in their study of variation in mammalian spermatozoa suggested that the sperm of each mammalian species was probably unique. Although complete volumes have been written on the ultrastructure of spermatozoa (for example Baccetti, 1970), particularly of humans and domestic animals, there is still relatively little information available on the comparative gross morphology of spermatozoa. McFarlane (1963), Forman (1968), and Forman et at. (1968) made significant contributions to our understanding of the use of sperm morphology in establishing systematic and phylogenetic relationships of birds and mammals. However, there have been very few similar studies published to this …

Morphometrics [Of Phyllostomatid Bats], Pierre Swanepoel, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

In this paper, we have attempted to cite all relevant literature in which mensural
data pertaining to phyllostomatid bats has appeared. We are not so naive as to
believe this goal was reached, but we do believe most pertinent publications
are listed, including all major works relating to each species. This information
serves as a summary of what currently is known concerning morphometrics of
phyllostomatids and hopefully provides a basis for future morphometric studies
of members of the family.

Introduction: Harold W. Manter And Parasitology, Franklin Sogandares-Bernal

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Introductory remarks given by Franklin Sogandares-Bernal of Southern Methodist University at a symposium held at the University of Nebraska-Lincoln, Lincoln, Nebraska, U.S.A., October 5-7, 1977, on host-parasite interfaces. An overview of the career of American parasitologist Harold Winfred Manter, whose career was spent as a professor at the University of Nebraska-Lincoln, is presented.

Namru-3 Translations Of Parasite Literature From Russian, French, Japanese, Etc. Into English (1923-1979) T1301-T1400, United States Naval Medical Research Unit Number Three, Cairo, Medical Zoology Department

United States Naval Medical Research Unit 3: Publications

T1303. TRANSLATION FROM RUSSIAN. SMIRNOV, V. A. and PELIPEICHENKO, M. V. (1964). Contribution to the question of epidemiological importance of birds in Kola Peninsula. Vop. Med. Virus., (10):213-219.

T1304. TRANSLATION FROM RUSSIAN. KAMBARATOV, P. I. (1972). Differential diagnosis of Q fever, influenza, and typhoid fever in children. Pediatriya, 51: 78-79.

T1305. TRANSLATION FROM RUSSIAN. KHOD'KO, L. P. and MISHAEVA, N. P. (1974). Experimental study of infection in arthropods in relation to feeding on vertebrates with different viremia levels. In: Ecology of viruses associated with birds, edited by Votyakov, V. I. and L'vov, D. K. Mater. Resp. Simp. Kamenyuki “Belovezh. Pushcha” …

The Parasitic Coelenterate, Polypodium Hydriforme Ussov, From The Eggs Of The American Acipenseri From Polyodon Spathula, Glenn L. Hoffman, E. V. Raikova, V. Ch. Suppes

United States Fish and Wildlife Service: Publications

No significant differences in macro- and micromorphology were found between the parasitic stolon and free-living polyps of Polypodium sp. obtained from infected eggs of the North American acipenseriform fish Polyodon spathula and corresponding developmental stages of Polypodium hydriforme Ussov, parasitic in the Volga sterlet (Acipenser ruthenus). Therefore, both the American and the European forms of Polypodium belong to the species P. hydriforme Ussov

Review Of Fish Pathology, Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

This excellent, somewhat Scottish text (the editor and most contributors live in Scotland), consists of 14 well-illustrated and informative chapters: 1. The Aquatic Environment by A. L. S. Munro; 2. The Anatomy and Physiology of Teleosts by A. E. Ellis, R. J. Roberts, and P. Tytler; 3. The Pathophysiology and Systematic Pathology of Teleosts by R. J. Roberts; 4. The Immunology of Teleosts by A. E. Ellis; 5. Neoplasia of Teleosts by Joan Budd and R. J. Roberts; 6. The Virology of Teleosts by Janet Liversidge and A. L. S. Munro; 7. The Parasitology of Teleosts by Ted Needham and …

Fertilizing Capacity And Ultrastructure Of Fowl And Turkey Spermatozoa Before And After Freezing, M. R. Bakst, T. J. Sexton

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

The fertilizing capacity, motility and ultrastructure of fowl and turkey spermatozoa were examined at various stages of the freezing process. For both species, fertility and motility were depressed after equilibration with dimethylsulphoxide at 5 °C. After freezing, motility was maintained at 55% for fowl spermatozoa and 40% for turkey spermatozoa; however, fertility was 55% for the fowl and 0% for the turkey. Qualitatively, the damage to the spermatozoa of both species was nearly identical, as revealed by scanning and transmission electron microscopy. The plasmalemma was the primary site of damage. 'Bent' spermatozoa, coiled tails and swollen mitochondria were also present. …

Uterine Blood Flow Of Cows During The Oestrous Cycle And Early Pregnancy: Effect Of The Conceptus On The Uterine Blood Supply, S. P. Ford, J. R. Chenault, S. E. Echternkamp

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

Blood flow to each uterine horn of cows during the oestrous cycle and early pregnancy was determined daily by use of electromagnetic blood flow probes placed around both middle uterine arteries. The pattern of blood flow to uteri of pregnant and non-pregnant cows was similar until Day 14 after mating or oestrus. Between Days 14 and 18 of pregnancy blood flow to the uterine horn containing the conceptus increased (P < 0.01) 2- to 3-fold, whereas blood flow to the non-gravid uterine horn in these cows remained constant. No corresponding increase in blood flow to the uterine horn ipsilateral to the ovary bearing the CL was observed in non-pregnant cows during this 4-day period. By Day 19 of pregnancy, blood flow to the gravid uterine horn had returned to a level similar to that observed on Day 13. Blood flow to both uterine horns of pregnant cows remained constant from Days 19 to 25 and then increased to the gravid horn (P < 0.01) markedly until Day 30 whereas blood flow to the non-gravid horn remained low. Uterine blood flow during the oestrous cycle of non-pregnant cows was positively correlated (P < 0.01) with systemic concentrations of oestradiol and the ratio of oestradiol (pg/ml) to progesterone (ng/ml). There was no association between oestradiol concentrations and blood flow to the gravid uterine horn. These data indicate local control of uterine blood flow by the bovine conceptus which may function to create optimal conditions for the continuation of pregnancy.

Increased Lamb Production With Rams Exposed To Short Daylengths During The Nonbreeding Season, B. D. Schanbacher

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

Exposure of rams during the nonbreeding season (anestrous period) to short daylengths will initiate a new sexual cycle characterized by testicular growth, increased mating activity and improved semen quality. Lambing results accumulated from 300 potential matings indicate that rams exposed to artificial photoperiods of 8 hr light and 16 hr darkness for 10 weeks (referred to as rams on short-days) are more fertile than control rams maintained under the relatively long days of spring. When five control rams were penned individually with 30 ewes synchronized with progestogen and PMSG, 67% of the ewes were mated. Eighty-nine percent of the ewes …

Neotoma Phenax, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Neotoma phenax (Merriam, 1903)
Sonoran Woodrat

Revision Of The Antillean Bats Of The Genus Brachyphylla (Mammalia: Phyllostomatidae), Pierre Swanepoel, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Nongeographic and geographic variation have been analyzed in the genus Brachyphylla. which belongs to the Antillean endemic subfamily Phyllonycterinae of the family Phylloslomatidae. Males were found to be generally larger than females: therefore, the sexes were analyzed separately for geographic variation. External measurements except length of forearm were found to displaya high degree of individual variation. They were not used in subsequent analyses. Of cranial measurements, greatest length of skull and condylobasal length showed the least individual variation, whereas palatal length, postorbital breadth (in samples from west of the Mona Passage only), and rostral width at canines showed relatively …

Germ Plasm Evaluation Program- Progress Report No. 6, Roman L.Hruska U.S. Meat Animal Research Center

Roman L. Hruska U.S. Meat Animal Research Center: Reports

The cattle Germ Plasm Evaluation Program has been conducted in three cycles. Cycle I involved breeding Hereford, Angus, Jersey, South Devon, Limousin, Simmental and Charolais bulls by artificial insemination (AI) to Hereford and Angus cows to produce three calf crops (Cycle I, Phase 2) in the spring of 1970, 1971 and 1972.

Cycle II, initiated with the 1972 breeding season, involved the Hereford and Angus cows used in the first cycle. These cows were bred by AI to Hereford, Angus, Red Poll, Brown Swiss, Gelbvieh, Maine Anjou and Chianina sires to produce two calf crops (Cycle II, Phase 2) in …

Agricultural Experiment Station News December 1978

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK - GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - November 1978

The Ornithogeography Of The Great Plains States, Paul A. Johnsgard

Paul Johnsgard Collection

It has long been recognized that the Great Plains represent a major transition zone in the distribution patterns of North American birds; field guides traditionally have treated the 100° W. longitude meridian as a convenient dividing line between eastern and western faunas. Furthermore, this line rather neatly bisects the political subdivisions of the Great Plains, namely the "plains states" extending from North Dakota southward through South Dakota, Nebraska, Oklahoma, and Texas. Of these, Texas is the least typical, its climate and fauna is strongly influenced by the Gulf Coast on the east and the Chihuahuan desert on the west. As …

The Prairie Naturalist Volume 10, Number 4. December 1978

The Prairie Naturalist

THE ORNITHOGEOGRAPHY OF THE GREAT PLAINS STATES ▪ Paul A. Johnsgard

CAPTURE OF GRAY PARTRIDGE BY FALCONRY IN NORTH DAKOTA ▪ John W. Schulz

INCUBATION RHYTHMS AND EGG TEMPERATURES OF AN AMERICAN GREEN-WINGED TEAL AND A RENESTING PINTAIL ▪ Alan D. Afton

TEMPORAL PATTERNS OF SPRING MIGRATION OF YELLOW-HEADED BLACKBIRDS IN NORTH DAKOTA ▪ Richard D. Crawford

CHECKLIST OF NORTH DAKOTA MAMMALS: COMMENTS ON STATUS AND DISTRIBUTION OF SPECIES ▪ Robert W. Seabloom

NOTE

First Nesting Record of Cattle Egret and Little Blue Heron in North Dakota ▪ Lloyd A. Jones

BOOK REVIEWS

Geese of the World ▪ Carl E. …

Whole Issue Nebraska Bird Review (December 1978) 46(4)

Nebraska Bird Review

Table of Contents

1978 (Fifty-third) Spring Migration and Occurrence Report

Notes ...................86

1978 Fall Field Day ...................86

Index of Volume XXXXVI ...................87

Index of Volume XXXXVI ...................87

The Ornithogeography Of The Great Plains States, Paul A. Johnsgard

Paul Johnsgard Collection

It has long been recognized that the Great Plains represent a major transition zone in the distribution patterns of North American birds; field guides traditionally have treated the 100° W.longitude meridian as a convenient dividing line between eastern and western faunas. Furthermore, this line rather neatly bisects the political subdivisions of the Great Plains, namely the "plains states" extending from North Dakota southward through South Dakota, Nebraska, Oklahoma, and Texas. Of these, Texas is the least typical, its climate and fauna is strongly influenced by the Gulf Coast on the east and the Chihuahuan desert on the west. As a …

Review Of The Desert Pocket Gopher, Geomys Arenarius (Mammalia: Rodentia), Stephen L. Williams, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

The desert pocket gopher (Geomys arenarius), which occupies a restricted geographic range in Texas, New Mexico, and Chihuahua, was examined for morphological variation. Univariate and multivariate analyses were used to determine age, sexual, individual, and geographic variation. Significant differences were found among different age classes and between sexes. Males displayed higher individual variation than females and external measurements were more variable than cranial measurements. Two subspecies--G. a. arenarius and G. a. brevirostris--were recognized after analyses of geographic variation.

Review Of Parasitic Protozoa. Volume Iii: Gregarines, Haemogregarines, Coccidia, Plasmodia, And Haemoproteids. Edited By Julius P. Kreier (Academic Press, 1977), Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Review of Parasitic Protozoa. Volume III: Gregarines, Haemogregarines, Coccidia, Plasmodia, and Haemoproteids. Edited by Julius P. Kreier. New York : Academic Press, 1977.

Agricultural Experiment Station News November 1978

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
GREETINGS FROM THE FROLIKS
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – October 1978

An Analysis Of Hair Structure And Its Phylogenetic Implications Among Heteromyid Rodents, Jacqueline A. Homan, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Hair morphology of 36 species of the family Heteromyidae including the genera Dipodomys, Perognathus, Microdipodops, Liomys, and Heteromys was studied using both light and scanning electron microscopy. Variables investigated included length and width of hair, imbricate scale pattern, external and cross-section form of hair, and medullary characteristics. Although the hair of individual species could be characterized with detailed study, we do not believe that hair structure will be of value in evolutionary studies of this group below the generic level. The overhair of heteromyid rodents falls into two morphological types-hair which is round to oval in …