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Canine aggression toward a new puppy in the household

A 5-year-old spayed female pure breed German Shepherd dog was referred to a veterinary behaviorist because she was aggressive toward a 2-month-old male pure breed Czechoslovakian Wolf dog. The puppy was recently introduced in the household. The German Shepherd was previously treated because of a social phobia diagnosis. The detailed history and the behavioral evaluation supported the presumptive diagnosis of territorial and protective aggression, which are often included in the same category, and predatory aggression. Predatory behaviors were unexpectedly discovered during the consultation and classified as predatory aggression. The adult dog didn’t show aggressive behaviors toward familiar or unfamiliar people, but she was reactive toward other dogs. The puppy showed a normal age-related behavior. The therapeutic strategy included safety recommendations, environmental changes, behavior modification and training sessions with professional trainers team support, drug therapy for the German Shepherd dog (fluoxetine, 1 mg/kg q 24 hours). Territorial, protective and predatory aggression was initially controlled. Finally the adult accepted the puppy as a pack member and improved her relationship with other dogs. This case report offers the opportunity to remind the importance of an appropriate procedure for the introduction of a new dog in the household to prevent behavioral disorders.

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Successful treatment of coagulation disorders and hypoalbuminaemia in a puppy with Infectious Canine Hepatitis.

Due to high vaccination coverage of the dog population in Western and Middle Europe, veterinarians are usually not familiar with clinical signs and treatment of Infectious Canine Hepatitis (ICH). This case report describes a 4-month-old female mixed breed dog that was imported from Bulgaria. According to the history, the puppy was presented with lethargy, pyrexia, icterus and melaena. On clinical examination, the dog additionally exhibited a painful abdomen and bleeding tendency at the venous puncture sites. Blood analysis revealed anaemia, left shift without leucocytosis, increased liver enzymes and prolonged coagulation times. Polymerase Chain Reaction (PCR) and subsequently sequence analysis performed out of urine confirmed Canine Adenovirus 1 (CAV-1) as the causative agent of the disease. Peripheral oedema developed on the dog´s head and limbs during the progression of the disease due to severe hypoalbuminaemia. Initial treatment of the puppy included transfusion of whole blood and fresh frozen plasma. Hypoalbuminaemia was treated by transfusion using human albumin. On day eight after starting the treatment, the dog was released from the hospital due to an unremarkable clinically condition. This case report indicates that ICH might become a re-emerging disease by means of rising dog imports. Especially, the severe form of ICH can be associated with several life-threatening complications that require hospitalisation and intensive care treatment.

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Isolation and characterization of Campylobacter, Helicobacter, and Anaerobiospirillum strains from a puppy with bloody diarrhea

We carried out a microscopic examination of stools from a 2-month-old female puppy with bloody diarrhea, and this revealed large numbers of different spiral-shaped bacteria. To isolate these organisms, a rectal swab specimen was inoculated onto plates of Skirrow’s agar and incubated at 37 °C for 6 days in a microaerobic atmosphere. Finally, a total of six different spiral-shaped bacteria (strains G1104, 94105, FR106, B0101, 3J102, and J2103) were isolated. Based on their morphology, biochemical traits, whole-cell protein profiles, and analysis of their 16S rDNA sequences, they were identified as Campylobacter upsaliensis, Helicobacter cinaedi, ‘ Flexispira rappini’, two Anaerobiospirillum spp. with different morphologies, and Helicobacter sp., respectively. Analysis of 16S rRNA gene sequence data for strains 94150 ( H. cinaedi) and FR106 ( F. rappini) revealed that this approach has limitations when identifying isolates to the species level because of a high degree of sequence homology between these species (>99%) and considerable sequence variation among different isolates within these species. The dog was treated orally with amoxicillin for 3 days, which resolved the diarrhea. However, 1 day after the last dose the bloody diarrhea recurred but regarded to six more days amoxicillin treatment. This suggests a bacterial cause for the diarrhea. The approach to identification to microaerobic spiral-shaped bacteria in diarrheic dogs can be applied further to characterize their role in diarrhea illness.

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PUPPY LINE, METAPHYSEAL SCLEROSIS, AND CAUDOLATERAL CURVILINEAR AND CIRCUMFERENTIAL FEMORAL HEAD OSTEOPHYTES IN EARLY DETECTION OF CANINE HIP DYSPLASIA

Ventrodorsal extended hip radiographs were analyzed from Foxhounds, Irish setters, Greyhounds, and Labrador retrievers radiographed four to seven times between 8 and 110 weeks of age. Occurrence in these 91 dogs of a puppy line, an ill-defined zone of proximal femoral metaphyseal sclerosis, a femoral neck linear sclerosis, or circumferential linear femoral head osteophytosis at 15-17 weeks of age were compared with hip joint laxity, as measured by distraction index, and to later findings of caudal curvilinear femoral neck osteophytes, circumferential femoral head osteophytes, hip incongruity consistent with hip dysplasia and degenerative joint disease by 52 weeks of age. A puppy line and/or femoral metaphyseal sclerosis was common at 15-17 weeks of age for dogs at mimimal risk (Greyhounds) and high risk (Foxhounds) of developing early degenerative joint disease associated with canine hip dysplasia. Though 44% of Greyhound hips had puppy lines and 28% had femoral metaphyseal sclerosis at 15-17 weeks of age, no Greyhound had a caudolateral curvilinear osteophyte or circumferential femoral head osteophyte at 24-27 or 52 weeks of age. No significant relationship was found between occurrence of a puppy line, a circumferential femoral head osteophyte or femoral metaphyseal sclerosis at 15-17 weeks and canine hip dysplasia or degenerative joint disease incidence at 42-52 weeks. Presence of a caudolateral curvilinear osteophyte in at least one hip at 24-27 weeks was significantly related to the diagnosis of canine hip dysplasia by 42-52 weeks. When both a caudolateral curvilinear osteophyte and a circumferential femoral head osteophyte were present in a hip at 24-27 weeks, degenerative joint disease was evident in all such hips by 42-52 weeks of age.

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