Medicine: Animal Husbandry and Veterinary Medicine

Ruminants, Cattle, Sheep, and Goats: Guidelines for the Breeding, Care, and Management of Laboratory Animals.

MAR 1974

Authors: NATIONAL RESEARCH COUNCIL WASHINGTON D C INST OF LAB ANIMAL RESOURCES

The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.

The report furnishes practical guidelines for the care and maintenance of cattle, sheep, and goats under a variety of research situations. Highlighting the increasing use of ruminants as animal models in biomedical research and comparative medicine, the report provides brief histories and summarizes characteristics of the breeds. It provides suggestions for the construction of facilities and recommends proper equipment necessary for maintaining runimants. It also discusses procurement considerations and specifications ...

Shock in the Subhuman Primate. Abstracts of the Published Literature, 1961-1973.

01 FEB 1974

Authors: Lerner B. Hinshaw; OKLAHOMA UNIV HEALTH SCIENCES CENTER OKLAHOMA CITY DEPT OF PHYSIOLOGY AND BIOPHYSICS

Much of past experimentation in the study of shock has been conducted in animal models other than the primate species. In recent years, it has become apparent that certain species differences exist between the subhuman primates and animals such as the canine and feline species, among others. The purpose of this publication is to gather all known published papers in shock conducted on subhuman primates since 1961. Since little work ...

Forum of USSR Parasitologists,

31 JAN 1974

Authors: I. G. Galuzo; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Reports at the plenary session discussed the following topics: The evolution and theory of development of the science of natural focalization; problems of exterminating of sources and combatting helminthiases of animals; parasite-host relationships; problems of classification of parasitic protozoa; immunity and allergy; dealing with parasitic arthropoda; and, diseases of terrestrial commercial animals. On this same theme reports were heard at the plenary session of the council for the section on ...

Bibliography of Germfree Research, 1885-1963. 1972 Supplement,

1974

Authors: B. A. Teah; NOTRE DAME UNIV IND LOBUND LAB

The report presents 311 citations on germfree animal research.

Selected Abstracts on Animal Models for Biomedical Research - III

1974

Authors: Marilyn J. Anderson; Charles B. Frank; NATIONAL RESEARCH COUNCIL WASHINGTON DC INST OF LAB ANIMAL RESOURCES

The publication is the third in a series designed to present abstracts or summaries of selected papers focusing on research utilizing animal models. The majority of abstracts in this volume appeared in biomedical literature during 1972, although some entries date from late 1971 or early 1973. This edition of Selected Abstracts also contains an appendix featuring a list of 201 references relating to animal models for cardiovascular research (p. 49). ...

Selected Topics in Laboratory Animal Medicine. Volume XIX. The Mouse.

DEC 1973

Authors: Alvin W. Smith; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

The review discussed all pertinent aspects of the use, care, and management of the mouse, Mus muscul s, in the biomedical research environment. (Author)

Selected Topics in Laboratory Animal Medicine. Volume II. The Design of Laboratory Animal Homes.

DEC 1973

Authors: Richard C. Simmonds; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

The review discussed all pertinent aspects of facilities design and construction for laboratory animal colony buildings. (Author)

Immunoprophylaxis for Control of 'Dirofilaria immitis'.

DEC 1973

Authors: Thomas J. Galvin; Rurel R. Bell; TEXAS A AND M UNIV COLLEGE STATION DEPT OF VETERINARY PATHOLOGY

A series of studies was conducted relating to immunological aspects of Dirofilaria immitis infection in the dog. Special emphasis was given to a study of immunological control of dirofilariasis with the use of x-irradiated third-stage larvae as a vaccine. One trial was performed to determine a suitable level of irradiation of larvae for use as a vaccine, and two trials were undertaken to determine the effectiveness of single and double ...

Selected Topics in Laboratory Animal Medicine. Volume XXI. The Rabbit.

DEC 1973

Authors: Robert J. Russell; Paul W. Schilling; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

The review discussed all pertinent aspects of the use, care, and management of the rabbit, Oryctolagus cuniculus, in the biomedical research environment. (Author)

Selected Topics in Laboratory Animal Medicine. Volume III. Physical Restraint.

DEC 1973

Authors: John T. LaCroix; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

The techniques and essential apparatus for the physical restraint of the commonly used laboratory animals are reviewed, including photographs. (Author)

Streptomycin Aerosol for Calves with Lung Disease,

30 NOV 1973

Authors: Yu. V. Goloviznin; L. A. Tupii; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

The authors were unable to find any literature data on content of streptomycin in the blood of calves, introduced by endotracheal and aerosol means. In view of this fact it was decided to make a study of this problem. The studies were carried out in January-June of 1969 on 18 clinically healthy calves of the Red Steppe breed in ages from 11/2 to 6 months. Streptomycin sulfate and dihydrostreptomycin sulfate ...

Technology of Aerogenic Immunization against Swine Erysipelas under Conditions of Actual Practice

19 NOV 1973

14 pages

Authors: H. Mohlmann; Margot Meese; P. Stohr; V. Schultz; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

The full text of this report is available for sale.

Large animal husbandry centers are economical only with high concentration of the herds. The facilities for animal raising must be so protected that infectious diseases do not lead to an endangerment of the herd. In this regard, stringent isolation and prophylactic vaccinations are of importance. The prevention of swine erysipelas infection in large pig-fattening facilities cannot be solved through hygienic measures alone. The animals must be kept under vaccine protection ...

Studies to Develop an Experiment Animal Model System for the Laboratory Investigation of Venezuelan Equine Encephalomyelitis Virus Infections

26 OCT 1973

Authors: James L. Hardy; CALIFORNIA UNIV BERKELEY

Research was conducted to determine the suitability of the hamster (Mesocricetus auratus) as a laboratory animal model for epidemiological and immunological studies on Venezuelan equine encephalomyelitis (VEE) virus infections. The studies were made using the live, attenuated VEE (Strain TC-83) and the live, attenuated western equine encephalomyelitis (WEE) (Clone 15) vaccine viruses. Both viruses elicited measurable hemagglutination-inhibition and neutralizing antibody responses in the hamsters. VEE antibodies were shown to be ...

The Miniature Pig: A Biomedical Model for Behavioral Studies.

OCT 1973

Authors: R. L. Chaput; E. L. Barron; J. K. Warrenfeltz; W. W. Wolfe; T. K. Dalton; ARMED FORCES RADIOBIOLOGY RESEARCH INST BETHESDA MD

Procedures for training pigs by shock avoidance conditioning to perform a shuttlebox and a visual discrimination problem are described. Pigs achieved stable performance levels of better than 95% shock avoidance in six and 35 days for the shuttlebox and discrimination problem, respectively. Such stable and accurate performances are required for assessing behavioral effects of independent variables. (Author)

Naturally Occurring Immune-Complex Glomerulonephritis in Cynomolgus Monkeys (Macaca irus). I. Light, Immunofluorescence, and Electron Microscopic Studies.

16 AUG 1973

Authors: Thomas R. Poskitt; H. Philip Fortwengler Jr.; James C. Bobrow; Gerald J. Roth; ARMY MEDICAL RESEARCH LAB FORT KNOX KY

Light, immunofluorescence, and electron microscopic studies were carried out on renal biopsies from 32 randomly selected adult cynomolgus monkeys (Macaca irus). Histopathology was limited to glomeruli and consisted of mild to moderate segmental increases in mesangial cells, mesangial matrix, and/or glomerular basement membrane (GBM) thickness in 40% of the animals. Granular deposits of IgM were present in the mesangium and along the GBM in 72% of the monkeys, whereas IgG, ...

Jet Injection in Large Animal Medicine, Jet Injector Evaluation.

01 JUL 1973

Authors: S. McConnell; H. W. Whitford; L. C. Grumbles; TEXAS A AND M UNIV COLLEGE STATION DEPT OF VETERINARY MICROBIOLOGY

In depth evaluation of the jet injector for use in large animal medicine was made. The study encompassed both the physical and biological properties of the jet injector gun. As presently engineered, the gun is entirely satisfactory for use in a number of different species of animals, both food and companion, including equine, bovine, caprine, ovine and porcine, certain changes in the combination of nozzle, orifice diameter, intensifier and spring ...

Animal Disease Survey of Navassa Island, West Indies.

25 JUN 1973

35 pages

Authors: Richard J. Brown; James L. Kupper; W. C. Hixson; John Bowman; Robert O. Baker; NAVAL AEROSPACE MEDICAL RESEARCH LAB PENSACOLA FL

Navassa Island is located 18 degrees 25 minutes north and 75 degrees and zero minutes west and is the closest American possession to the United States Naval Station at Guantanamo Bay, Cuba. The island is uninhabited. The wild animals studied on Navassa Island included goats, rats, and several species of birds. Low levels of mercury and DDT were detected in these animals. Radioisotope analysis of animal tissue revealed low levels ...

An Annotated Bibliography in Laboratory Animal Medicine and Veterinary Surgery: Pharmacology.

MAY 1973

Authors: Mark S. Bloomberg; George W. Irving III; Earl F. Jones; Stephan H. Cramlet; Delwin K. Buckhold; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Abstracts and relevant portions of 81 papers pertaining to pharmacology are presented. These citations were collected between August 1970 and October 1972 and are intended to be a general coverage of the current information on pharmacologic agents used in veterinary surgery, anesthesiology, and laboratory animal practice. (Author)

Selected Topics in Laboratory Animal Medicine. Volume XIII. Zoonoses of Nonprimates.

APR 1973

Authors: David H. Wood; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

The review discusses the classification, etiology, laboratory animal hosts, occurrence, public health significance, and preventive measures for the major zoonoses of the nonprimate animals usually housed in the animal colony. (Author)

Selected Topics in Laboratory Animal Medicine. Volume XVI. The Chimpanzee.

APR 1973

Authors: Thomas M. Butler; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

;Contents: Anatomy and physiology; Housing and handling; Nutrition, reproduction, and diseases; Chemical restraint and anesthesia; Chimpanzee colonies.

Studies on Canine Dirofilariasis.

31 MAR 1973

Authors: William Forrest Hutchison; Ronald W. Intermill; Hugh L. Keegan; Russell J. Christie; MISSISSIPPI UNIV MEDICAL CENTER JACKSON

Dogs with Dirofilaria immitis microfilaremia were obtained from three geographically distinct areas to determine whether divergent strains of the parasite might develop differently in the mosquito Aedes triseriatus Say. Because no significant differences were noted, results of these experiments were combined to give an overall view of development of D. immitis in Aedes triseriatus. An average of twenty microfilariae was found in the midgut and malpighian tubules of the mosquitoes ...

Testing the Aerogenic Method for Administering Antibiotics in Virus Pneumonia of Swine,

21 MAR 1973

Authors: V. I. Afanasev; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Chlortetracycline in combination with vitamins A and B3 is an effective means of treating virus pneumonia in swine. Chlortetracycline applied in the form of a dry aerogen calculated at 15,000 units per kg of body weight once a week in combination with vitamins A (120 units per kg) and B3 (0.03-0.1 g per animal) protects 83.4% of the pigs from infection with virus pneumonia.

Classification, Analysis, and Interpretation of Animal Neoplasms in Northwest Florida and NAMRL.

13 MAR 1973

16 pages

Authors: Richard J. Brown; James L. Kupper; Walter P. Trevethan; NAVAL AEROSPACE MEDICAL RESEARCH LAB PENSACOLA FL

Disease surveillance in animals closely associated with man provides important xoonotic sentinel information. Often animals are accurate models of response to environmental factors that also effect man. This is especially true and of even greater significance in recent years with the ever increasing list of viral and chemical carcinogens. One hundred and fifty neoplastic cases from Northwest Florida were reviewed. Ninety-one (60.7%) were benign and 59 (39.3%) were malignant. Dogs ...

An Annotated Bibliography in Laboratory Animal Medicine and Veterinary Surgery: Primate Viruses,

FEB 1973

Authors: George W. Irving III; Charles E. Thalken; Tony D. David; Douglas K. Obeck; Bobby G. Brown; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Abstracts and relevant portions of 74 papers pertaining to viruses of primates are presented. These citations were collected between August 1970 and August 1972 and are intended to be a general coverage of the current information on agents isolated from primates. (Author)

Parasites of Laboratory Animals,

1973

Authors: Robert J. Flynn; IOWA STATE UNIV AMES

Although much is known about the parasites of laboratory animals, information is often lacking and what is available is scattered. It is the purpose of this book to gather what is known in this field so that it is readily accessible to those who need it, and to point out what is not known. The parasites described are those that occur spontaneously. Experimentally induced conditions are mentioned only if they ...

Bibliography of Germfree Research, 1885-1963. 1973 Supplement,

1973

Authors: B. A. Teah; NOTRE DAME UNIV IND LOBUND LAB

A bibliography of 211 citations is presented on biomedical research conducted utilizing germ free animals.

A Survey of Selected Bacteriological Infections of the Chacma Baboon 'Papio ursinus' from the Kruger National Park

1973

12 pages

Authors: C. A. W. J. Van Niekerk; E. E. McConnell; V. de Vos; ARMED FORCES INST OF PATHOLOGY WASHINGTON DC

An absence of bacterial pathogens and zoonoses emerged as the salient feature in a bacteriological survey of chacma baboons from the Kruger National Park. Totals varying from 100 to 178 baboons were assayed for salmonellosis, shigellosis, tuberculosis, brucellosis and leptospirosis. It is conjectured that with Kruger National Park baboons, the above mentioned pathogens are not expected to complicate handling procedures or experimentation, provided a clean or pathogen-free environment is maintained ...

Selected Topics in Laboratory Animal Medicine. Volume VI. Pharmacology.

NOV 1972

Authors: William H. Pryor Jr.; Vernon L. Carter Jr; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

The review discusses the importance of pharmacology to the laboratory animal clinician. Drug metabolism and enzyme induction, species differences in drug response, and drug effects are discussed in relation to research animal medicine. Specific examples are given of drug effects or interactions that are encountered when using anesthetics and chemotherapeutic agents. (Author)

Selected Topics in Laboratory Animal Medicine. Volume XV. Selecting Primates for use in Biomedical Research.

OCT 1972

Authors: Gale D. Taylor; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

;Contents: Geographic range of the living primates; Classification of the living primates; A review of the primate families; Guidelines for primate species selection.

Selected Topics in Laboratory Animal Medicine. Volume VIII. Parasitology.

SEP 1972

Authors: George W. Irving III; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

The major parasites of laboratory animals are divided into eight groups: Insects, arachnids, pentastomes, acanthocephalids, unicellular parasites (protozoan), cestodes, trematodes, and nematodes. A broad review is presented of the major characteristics that delineate each of the eight groups of laboratory animal parasites, and examples are cited of some of the more common parasites in each group. A host-parasite list for several species of laboratory animals is included. (Author)

Selected Topics in Laboratory Animal Medicine. Volume XVIII. The Squirrel Monkey.

SEP 1972

Authors: James L. Kupper; William E. Britz; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

A summary of the husbandry, diseases, and uses of the squirrel monkey in biomedical research is presented. The fifty-seven references provide source information for this species of laboratory animal. (Author)

Methods for the Characterization and Study of the Inheritance of Red Cell Antigens in 'Macaca irus' Monkeys.

23 AUG 1972

Authors: William E. Biddison Jr; ARMY MEDICAL RESEARCH LAB FORT KNOX KY

High or low titer red cell antibodies were produced by all the isoimmunized monkeys. The antibodies were cold and warm saline agglutinins, hemolysins, and Coombs reactive agglutinins. Three distinct cold reactive saline agglutinins were isolated. The antigens of parents and infants followed the rules of Mendelian inheritance according to their specific reactions to the three monospecific sera produced. Patterns of first generation inheritance were established and plans for second generation ...

Some Observations on Invagination of the Colon with Prolapse through the Anus in the Golden Syrian Hamster (Mesocritcetus a Auratus).

AUG 1972

Authors: William B. Pollock; ARMY NATICK LABS MASS FOOD LAB

The occurrence of invagination of the colon with prolapse through the anus in six Golden Syrian hamsters is reported. The gross pathological findings are described. Observations on the probable pathogenesis are discussed. (Author)

Development of a 'Bio-Pac' for Cardiac Evaluation of Procine Research Animals,

AUG 1972

Authors: Thomas L. Wachtel; G. R. McCahan Jr.; Lynn A. Alford; ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER ALA

The report describes a technique for implanting central venous and aortic catheters via the jugular veins and carotid arteries in miniature swine and the device designed and utilized to protect these catheters. Such indwelling catheters were easily maintained for fourteen (14) days in unrestrained, free-roaming pigs while serial blood samples, pressure recording, electrocardiographic monitoring, and cardiac output measuring were conducted and infusion of precise amounts of fluids or drugs administered. ...

An Interdisciplinary Study of the Effects of Real and Simulated Sonic Booms on Farm-Raised Mink (Mustela vision).

AUG 1972

242 pages

Authors: Hugh F. Travis; James Bond; R. L. Wilson; J. R. Leekley; J. R. Menear; AGRICULTURAL RESEARCH SERVICE BELTSVILLE MD

Studies were conducted at three sites on Mitkof Island, Alaska, to determine the effects or three real or three simulated sonic booms of about 6 pounds per square foot over-pressure upon reproduction in farm-raised mink. Control animals were not boomed. No differences (P>.05) were found among experimental treatments for length of gestation, number of kits born per female whelping, number of kits alive per female at 5 and 10 days ...

An Annotated Bibliography in Laboratory Animal Medicine and Veterinary Surgery: Herpesviruses.

JUN 1972

Authors: George W. Irving 3rd; Charles E. Thalken; Tony D. David; James F. Gaines; Richard A. Boster; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Abstracts and relevant portions of forty-one papers pertaining to herpesviruses are presented. These citations were collected between August 1970 and February 1972 and are intended to be a general coverage of the current information on these agents. (Author)

Jet Injection in Large Animal Medicine, Jet Injector Evaluation.

31 MAY 1972

Authors: L. C. Grumbles; S. McConnell; H. W. Whitford; TEXAS AGRICULTURAL EXPERIMENT STATION COLLEGE STATION

Dose delivery characteristics of the injector gun was determined during the period using both weight and penetration measurements. Dose delivery measurements were made by weighing on an analytical Mettler balance and comparing quantitatively the delivery capabilities of each barrel size, 1 cc and 2.4 cc. Penetration characteristics for each of the crowned and uncrowned head orifice sizes were determined for the equine, ovine, caprine, bovine, canine and porcine. A summary ...

Observations on the Occurrence of a Dermatomycosis in a Colony of Long-Evans Rats.

MAY 1972

Authors: William B. Pollock; ARMY NATICK LABS MASS FOOD LAB

The gross lesions associated with a Dermatomycosis are discussed. The occurrence of the spores within the hair shaft (endothrix) is demonstrated, while the inability to grow the organism on artificial media is noted. (Author)

Investigations of Hip Dysplasia in the Military Working Dog

01 MAR 1972

68 pages

Authors: KANSAS STATE UNIV MANHATTAN

While many aspects of hip dysplasia have been studied and described, the etiology and pathogenesis of the disease have remained undefined. The only common denominator which has come out of these studies appears to be that joint laxity precedes and results in the wide variety of acetabular and femoral changes that are observed. Thus, studies of factors which contribute to joint laxity offer promise of determining the etiology of the ...

Immunoprophylaxis for Control of 'Dirofilaria immitis'.

MAR 1972

Authors: Thomas J. Galvin; Rurel R. Bell; TEXAS AGRICULTURAL EXPERIMENT STATION COLLEGE STATION DEPT OF VETERINARY PARASITOLOGY

Studies conducted during the second year of the project have been described. Three trials have been completed and two others initiated. The completed trials were undertaken to determine a proper dosage of Cobalt 60 irradiation for attenuating infective Dirofilaria immitis third-stage larvae for use as a vaccine. Two trials are underway to determine the effect of transplanted adult worms on subsequent exposure to infective D. immitis larvae. In each study ...

Bibliography on Venezuelan Equine Encephalomyelitis (VEE),

15 FEB 1972

Authors: Phebe W. Summers; ARMY MEDICAL RESEARCH INST OF INFECTIOUS DISEASES FREDERICK MD

Four hundred sixty-three confirmed as well as 39 unconfirmed bibliographic citations are listed on the subject of Venezuelan equine encephalomyelitis.

Complex Immunization of Piglets against Aujeszky's Disease, Plague and Erysipelas (Kompleksnaya Immunizatsiya Porosyat Protiv Bolezni Aueski, Chumy i Rozhi),

03 FEB 1972

Authors: P. I. Pritulin; A. A. Konopatkin; G. D. Suer; ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

In the problems dealing with Aujeszky's disease, plague, and Erysipelas the effectiveness of multiple immunization was researched with the following results: (1) The complex application of virus vaccine against Aujeszky's disease, and anti-plague virus vaccine from strain K and vaccine against Erysipelas from strain VR2 results in a simultaneous formation of strong immunity to Aujeszky's disease, plague and Erysipelas. (2) Evidence as to the harmfulness and immuniological effectiveness of complex ...

Nosematosis in a Squirrel Monkey 'Saimiri sciureus': First Reported Case.

24 JAN 1972

13 pages

Authors: Richard J. Brown; Donald K. Hinkle; Walter P. Trevethan; James L. Kupper; Adam E. McKee; NAVAL AEROSPACE MEDICAL RESEARCH LAB PENSACOLA FL

A 2-month old squirrel monkey (Saimiri sciureus) succumbed following a month of frequent petit mal seizures. At autopsy the only gross abnormality was a separation of the parietal suture line of the cranium. Hematoxylin and eosin stains revealed multiple focal glial nodules throughout the brain. Granulomatous hepatitis and nephritis were also present. These lesions were not typical of any reported disease in the squirrel monkey. Special stains for mucosis, tuberculosis, ...

Control of VEE Epizootic-Epidemic by Vaccine Developed at USAMRIID,

1972

Authors: Richard O. Spertzel; Dan Crozier; ARMY MEDICAL RESEARCH INST OF INFECTIOUS DISEASES FREDERICK MD

Venezuelan equine encephalomyelitis (VEE) is a zoonotic arbovirus disease affecting both Equidae and man. Infection in equine animals may be subclinical, but more often it assumes one of the following clinical forms: (a) mild illness consisting primarily of anorexia, fever, and depression; (b) severe illness characterized by anorexia, high fever, stupor, staggering, and blindness, followed by recovery with or without permanent sequellae; or (c) fatal disease with a similar sequence ...

Selected Abstracts on Animal Models for Biomedical Research - 2

1972

64 pages

Authors: Charles B. Frank; Marilyn J. Anderson; NATIONAL RESEARCH COUNCIL WASHINGTON DC INST OF LAB ANIMAL RESOURCES

The publication is the second in a series containing abstracts selected from the biomedical literature pertaining to animal models. These abstracts were accumulated during 1972 and represent only a select portion of papers appearing in journals during the period 1970 - 1972. In addition to the abstracts presented in this compendium, a special section has been appended that includes a brief review of several recent books or symposium reports specifically ...

Blood Cholinesterase Variation in Sheep under Different Holding Conditions.

DEC 1971

Authors: George D. Edwards; EDGEWOOD ARSENAL MD

A monitoring program, including the use of domestic sheep as sentries for open-air tests of anticholinesterase agents, was developed in the event emergency circumstances would dictate that this testing program be resumed. The sheep would be placed in monitor pens on the periphery of the test grid after each test, and blood cholinesterase (ChE) activity would be measured periodically. This report presents a method for measuring ChE in erythrocytes and ...

Study of an Epizootic of Venezuelan Equine Encephalitis in Tamaulipas, Mexico,

18 NOV 1971

Authors: Antonio Morilla-Gonzalez; Julio de Mucha-Macias; FORT DETRICK FREDERICK MD

In September 1966 information was received about a disease which affected equines of Tampico, Mexico. These animals showed symptoms related to an encephalitis of probable viral etiology. The present paper describes, through a retrospective study, the first epizootic caused by Venezuelan equine encephalitis virus in the Mexican Republic. (Author)

Economic Loss Due to Coccidiosis in Chickens (Ekonomicheskii Ushsherb ot Kokstsidioza Kur),

21 SEP 1971

Authors: V. I. Koshkina; ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA

The infection of chickens by coccidiosis in Kazakhstan is explained. Consideration is given to the effects of climate and poultry farming practices, as well as the natural resistance to coccidiosis of various chicken breeds. The symptoms and consequences of the disease are discussed. (Author)

Susceptibility of Rodents to Oral Plague Infection: A Mechanism for the Persistence of Plague in Inter-Epidemic Periods

07 SEP 1971

7 pages

Authors: James H. Rust Jr.; Daniel N. Harrison; John D. Marshall Jr.; D. C. Cavanaugh; WALTER REED ARMY INST OF RESEARCH WASHINGTON DC

Oral infection of rodents with Pasteurella pestis has been demonstrated with both fully virulent and avirulent strains. Sustained rodent plague epizootics have been initiated and maintained in the absence of the classical flea vector. Transmission was due to cannibalism of the dying rodents by their healthy cagemates. Oral infection is considered to provide a plausible mechanism for the persistence of plague in an area where conditions are temporarily unsuitable for ...

Heartworm and Hookworm Disease in Military Dogs: Chemoprophylaxis with Diethylcarbamazine and Strylpyridinium.

SEP 1971

Authors: Harold C. Davis; Harold W. Casey; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Effective chemoprophylaxis of hookworm and heartworm infections was achieved by feeding military working dogs low-level dosages of styrylpyridinium and diethylcarbamazine daily. Ten groups of military working dogs located in the United States, Japan, the Philippines, Vietnam, and Thailand received daily dosages of the drugs for extended periods of up to 27 months. The incidence of hookworm infections at those bases where all the dogs received the drugs was reduced to ...