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Leptospirosis in zoo workers associated with bears.

Leptospirosis due to Leptospira interrogans serovar icterohaemorrhagiae was diagnosed in two zoo animal keepers. The implicated source of infection was bear cubs that had microscopic agglutination antibody titers to leptospires of the Icterohaemorrhagiae serogroup.

Adult

Laparoscopy in zoological medicine.

The technique of laparoscopy was adapted and utilized in zoological medicine for various mammals, birds, and reptiles for reproductive and diagnostic studies as well as clinically related research. It was concluded that since anesthesia was routinely required for most manipulative procedures in zoo animals, and since laparoscopy adds little additional risk, the use of this technique provides an additional diagnostic aid when indicated. Laparoscopy was found to be effective for evaluating reproductive status, particularly ovarian anatomy and function, direct visual biopsy of internal organs, sex determination in selected birds, and as a surgical means of fertility control.

Animals

Pseudotuberculosis in the Antwerp Zoo.

During the last five years (1970-1974) 42 cases of pseudotuberculosis were diagnosed among the Antwerp Zoo animals. The prevalence of disease, and the distribution frequency of gross lesions in the visceral organs were studied. The susceptibility of different animals and the influence of some factors to the disease are discussed. It demonstrates that Y. pseudotuberculosis, and particularly its two serotypes I and II, constitutes the principal causative agent. Pseudotuberculosis is found to be highly prevalent in cold season.

Animals

Wildlife as a reservoir of OXA-48-like carbapenemase-producing Enterobacterales.

Carbapenemase-producing Enterobacterales (CPEs) have globally emerged and spread beyond human compartments. However, data in wild animals, especially from low- and middle-income countries, such as Algeria, are still very scarce. Here, we investigated CPEs recovered from feces samples collected between October 2021 and June 2023 from wild terrestrial and aquatic mammals, wild migratory/nesters/sedentary birds, and zoo animals, including their environment (water, food, and fecal samples of animal care workers) distributed over six Algerian provinces. Carbapenem-resistant Enterobacterales were characterized using MALDI-TOF-MS, Carba NP, immunochromatographic assay NG-Test CARBA 5, antimicrobial susceptibility testing, and whole-genome sequencing. Thirty CPEs were identified out of the 1,899 samples collected (1.6%). The carriage rate was higher in captive animals (3.2%) than in wild animals (1.2%). Twenty-six produced OXA-48, three OXA-244, and one OXA-181, along with CTX-M-15 ESBL. Clonal expansion of Enterobacter hormaechei hoffmannii ST145 and Klebsiella pneumoniae ST13 was evidenced. Plasmid analysis confirmed that 24/30 isolates harbored a transferable 62 kb IncL pOXA-48 plasmid. Five/six E. coli isolates belonged to high-risk clones with chromosome-mediated blaOXA-244 gene in three isolates, blaOXA-48 in two isolates, and blaOXA-181 gene encoded on an IncFII-ColKP3 hybrid plasmid in one isolate. This study showed widespread dissemination of OXA-48-like producing Enterobacterales in free and captive wild animals, largely driven by epidemic plasmids and clones. It underscores the role of wild animals as a reservoir of CPEs, particularly species living close to humans, such as gulls and pigeons, and occasionally food-producing animals, increasing the risk of bidirectional dissemination between animal, environmental, and human sectors.IMPORTANCEThe global rise of carbapenemase-producing Enterobacterales (CPEs) harboring blaOXA-48-like has been increasingly documented in clinical settings. However, their emergence and transmission in wild and captive animals are less documented. This study provides a high-resolution genomic characterization of CPEs isolated from the feces of wild animals, especially migratory birds, and from captive wild animals, to evaluate the potential risk of dissemination through these animals. Whole-genome sequencing data, genetic investigations, and antimicrobial susceptibility results highlighted the spread of multidrug-resistant CPEs in both animals and humans. The widespread detection of blaOXA-48 across multiple niches suggests sustained circulation beyond hospital settings in Algeria. Human-associated lineages, such as E. coli ST131, ST38, and ST540, were identified with a clear link with humans. This study demonstrates carriage of CPEs in multiple bird species living in areas commonly inhabited by humans and provides further evidence for an effective dissemination of resistance in wildlife, facilitated by feeding habits.

Animals

[13 Years of veterinary mycological routine diagnostics. Isolation of dermatophytes in the years 1965-1977].

Over a thirteen year period (1965 to 1977) a total of 4790 skin scrapings and hair samples of animals were examined mycologically. 887 strains of dermatophytes were isolated out of 885 of these samples (= 18,5%). Most frequently Trichophyton verrucosum was identified in samples from cattle, followed by Microsporum canis isolated from cats, dogs and zoo animals. T. mentagrophytes was mainly found on guinea pigs, chinchillas and dogs and T. equinum on horses. Although the total number of the samples examined within the last 8 years increased, the total of the dermatophytes isolated remained proportionately the same. The relative numbers of the various species of dermatophytes isolated did not change within the period of investigation.

Animals

Animal behavior as a subject for veterinary students.

Knowledge of animal behavior is an important asset for the veterinarian; therefore a course in veterinary animal behavior is offered at the New York State College of Veterinary Medicine as an elective. The course emphasizes the behavior of those species of most interest to the practicing veterinarian: cats, dogs, horses, cows, pigs and sheep. Dominance heirarchies, animal communication, aggressive behavior, sexual behavior and maternal behavior are discussed. Play, learning, diurnal cycles of activity and sleep, and controls of ingestive behavior are also considered. Exotic and zoo animal behaviors are also presented by experts in these fields. The critical periods of canine development are related to the optimum management of puppies. The behavior of feral dogs and horses is described. The role of the veterinarian in preventing cruelty to animals and recognition of pain in animals is emphasized. Whenever possible behavior is observed in the laboratory or on film.

Aggression

Influenza zoo.

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Animals

The Tucson zoo.

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Animals

Description and analysis of the arch display in the golden lion tamarin, Leontopithecus rosalia rosalia.

Three different arch displays are described in captive lion tamarins (Leontopithecus rosalia rosalia) at the National Zoological Park. Analysis of social behaviours including huddling, sexual activity, territorial encounters and arch displays suggests that arch displaying is motivated by conflicting tendencies of a nonaggressive nature and may function as a regulator of social contact, thus maintaining homeostasis within and between a social group.

Animals