Ornithodoros mimon is an argasid tick species usually associated with bats and marsupials and occasionally parasitizes humans inside their homes. This paper reports a tick infestation in a residence in the municipality of Campinas, located in the interior of the state of São Paulo (SP). This report increases O. mimon occurrence in SP and corroborates its anthropophilic activity. Further studies are needed to clarify its role as a vector of pathogens. We highlighted the presence of O. mimon in an area with a large human population (Campinas) associated with synanthropic animals.

O objetivo deste estudo foi observar os efeitos da reposição de 17 β-estradiol na microbiota fecal de gatas castradas. Amostras individuais de fezes frescas foram colhidas e armazenadas a -80°C. Foi realizado o sequenciamento das regiões V3/V4 do gene 16S rRNA e a análise bioinformática. A razão Firmicutes/Bacteriodetes foi menor no grupo que recebeu reposição estrogênica em comparação ao grupo SHAM (P = 0,005). O índice de Jaccard (P = 0,123) e o índice de Yue & Clayton (P = 0,094) não revelaram diferenças na alfa e beta diversidade. A análise discriminatória linear de tamanho do efeito (LefSe) identificou Firmicutes e Megasphaera como biomarcadores para o grupo SHAM, e Burkholderiales, Betaproteobacteria, Sutterellaceae, Suterella, Proteobacteria, Proteobacteria não classificada e Collinsella para o grupo que recebeu reposição estrogênica.

Cytauxzoon felis is a hemoparasite capable of infecting domestic and wild cats. Studies suggest that wild cats are the main reservoirs of the protozoan, and transmission occurs through the bite of an infected tick. Hemotropic mycoplasmas are Gram-negative bacteria responsible for severe hemolytic anemia. The feline immunodeficiency virus (FIV) is a retrovirus capable of generating immunosuppression in the host and persistent infection. The present work describes a case of co infection of Cytauxzoon felis, Mycoplasma haemofelis, and feline immunodeficiency virus (FIV) in a cat. A feline from the rural area was admitted to the Veterinary Hospital of Uberlândia - MG of the Federal University of Uberlândia. Fresh whole blood samples were collected for blood count, enzymatic analysis, DNA extraction, real-time PCR for the detection of Cytauxzoon felis and Mycoplasma haemofelis, and the Point of Care ELISA test for Feline Leukemia Virus (FeLV) antigens and antibodies to feline immunodeficiency virus (FIV). Piroplasms compatible with Cytauxzoon spp. were observed in the smear, and the tests performed were positive for Cytauxzoon felis, Mycoplasma haemofelis, and FIV.

Leptospirosis is a zoonotic disease in the tropical zone with a broad and endemic distribution. The condition is complex, where different host factors, serovar type, reservoirs, environment, and agricultural practices intervene. In cattle, the disease causes significant damage to the livestock sector, and the surrounding conditions can influence its dynamics. This study aimed to determine the seroprevalence of anti-Leptospira spp. antibodies and the risk factors in cattle in the tropical savannah from eastern Colombia. Blood was taken from the coccygeal veins of 1,000 animals. The MAT (Microagglutination) technique was used for the identification of the serogroup Autumnalis, Bataviae, Bratislava, Canicola, Copenhagen, Cynopteri, Grippotyphosa, Sejroe, Mini, Pomona, Shermani, Tarassovi, and Celledoni. Studies of risk factors were carried out according to the serovar through the calculation of X2 and OR. Seroprevalence of Leptospira spp. was 34.2% with 92.3% of herds. Pomona had the highest frequency of 7.9%, followed by Hardjo prajit with 7.0% and Grippotyphosa with 6.2%. Antibody agglutination with more than one serovar was seen in 102 (29.8%) samples. The serogroup with the highest correlations were Pomona and Hardjo prajit.

Both pregnancy and obesity can influence significant changes in the immune system. On this basis, the present study proposes to evaluate the humoral immune response of overweight pregnant mares in response to a commercial vaccine. Thirty pregnant Crioulo mares were separated according to body condition score (BCS) into overweight (BCS≥7/9) or lean-control (BCS= 5-6/9). In each group, the animals were subdivided into vaccinated and controls. The mares were vaccinated against EHV-1 in two doses spaced 21 days apart and had their blood collected monthly, for five months, for antibody evaluation. Both vaccinated groups had an increase in specific neutralizing antibodies after the vaccine. However, after the second dose, there was no increase in antibodies in any of the groups. Vaccinated overweight and lean-control mares did not differ at any time point. Therefore, this study demonstrated that obesity does not influence the humoral immune response in pregnant Crioulo mares.

Studies on the interactions between the intestinal microbiome and its host have strengthened in the last decade. However, publications on this topic in dogs still need to be made available, reinforcing the need for new studies and literary data for consultation. Given this, this review aims to describe the intestinal microbiome and its interactions with the canine host, which can contribute to both health and morbid conditions in these animals. The definition of microbiome encompasses the collective genome of all microorganisms that live in a defined habitat (intestine). It is known that the dog’s intestinal microbiota is varied, composed of bacteria, archaea, viruses, fungi, and protozoa. Under normal conditions, there is commensalism between some of these microorganisms and the host, which promotes critical physiological relationships and interactions that contribute to homeostasis and the consequent health of the animal. With this in mind, it is expected that the disturbances associated with the microbiome will result in imbalances in this commensal relationship and thus precipitate the development of diseases and aggravation of other diseases, thus characterizing intestinal dysbiosis.

The present study aimed at assessing the effects of combining 20 mg/kg S(+) ketamine with 25 μg/kg dexmedetomidine and 0.4 mg/kg butorphanol on the physiological parameters and anesthetic recovery time and score of eight captive scarlet macaw (Ara macao) specimens. These specimens were captured at the Marabá Zoobotanic Foundation (Fundação Zoobotânica de Marabá), Pará, using butterfly and mist nets, and subsequently subjected to the proposed protocol. The following physiological parameters were evaluated: heart rate (HR), respiratory rate (RR), saturation of peripheral oxygen (SpO2), body temperature (BT), and non-invasive blood pressure 5 min after drug administration (M0) and every 10 min thereafter (M1‒M5), with a total of 55 min of analysis of anesthetic effects. Glycemia was measured 5 min after drug administration and every 30 min thereafter. Anesthetic induction and recovery times were also determined. Among the parameters evaluated in this study, both HR and BT significantly decreased throughout the anesthetic period, with the lowest levels at 55 min after drug administration (M5). In contrast, RR did not significantly differ, and all animals remained stable, maintaining an RR close to a mean of 20 ± 8 cpm. Throughout the anesthetic period, SpO2 was 92 ± 5%, with no significant difference. The birds remained under spontaneous ventilation and without oxygen supplementation. Systolic, diastolic, and mean blood pressures remained stable, with no significant differences in any of these measurements. At M0 and M3, the glycemia decreased slightly, albeit with no significant difference justifying an adverse effect or even hypoglycemia. The anesthetic induction time, from M0 to decubitus, was 2.4 ± 0.7 min. The anesthetic recovery time, from M0 to effortless bipedal position and adequate phalangeal flexion, was 99.3 ± 32.4 min. The sedation was assessed as intense, and the anesthetic recovery was rated excellent in 62.5% and good in 37.5% of the animals.

Wild animals can be natural reservoirs of different microorganisms, essential for monitoring these pathogens for the generation of knowledge and creation of tools aimed at programs for the prevention and control of infectious diseases, including zoonoses. The objective was to report the fungal diversity in the skin of pacas in captivity in Acre, Western Amazon, Brazil. Twenty-six animals were evaluated, from which skin samples were collected by superficial scraping, hair avulsion, and sterile plastic brush. The samples were seeded on Mycosel agar, and the phenotypic characteristics of the colonies were analyzed. In 80.8% of the samples, different fungi were isolated, from the genera Candida, Microsporum, and Trichophyton, among others. This is the first description of the identification of fungi in the skin of pacas and suggests that these animals can be considered essential reservoirs of saprophytic or pathogenic microorganisms with zoonotic potential in the Western Amazon.

The complete bleeding in slaughtering animals is closely related to the halalness of the meat. This study aims to describe the completeness of blood drains in discarded laying hens carcasses sold at traditional markets in Banda Aceh City. The research samples were nine chicken carcasses bought from three traditional markets, i.e., Peunayong, Ule Kareng, and Seutui (three samples from each market). The study used a cross-sectional method to test the perfect carcass bleeding with the Malachite Green (MG) test in the form of seeing changes in the color of the solution. The results showed that all samples changed color from green to dark blue. A perfectly slaughtered chicken will not find hemoglobin in the chicken carcass, causing O₂ to oxidize malachite green to a dark blue, indicating that the slaughtering and bleeding occurred completely. In conclusion, the carcasses of discarded laying hens sold in the traditional markets of Peunayong, Ule Kareng, and Seutui are halal.

This study aims to determine the histomorphometry of the small intestine of turkeys (Meleagris gallopavo) at different age levels. This study used a completely randomized design. This study used 18 male turkeys, divided into 3 groups of ages 8, 16, and 24 weeks, each group comprising 6 turkeys. The necropsied turkey's small intestine was taken into histological preparations and stained with haematoxylin-eosin (HE). The results showed that the histological picture of the small intestine layer of turkeys at different age levels consisted of four layers: tunica mucosa, tunica submucosa, tunica muscular, and tunica serosa. Histomorphometrically, there was an increase in the thickness of all layers of the small intestine from 8 and 16 weeks of age (P0.05), and the height of the intestinal villi increased in all parts of the small intestine at 8, 16 and 24 weeks of age (P0.05 ). In conclusion, with histomorphometric measurements, it can be seen that there are differences in the three age groups.