Massive mammary enlargement in a cat   总被引：1，自引：1，他引：0       下载免费PDF全文

Chisholm H 《The Canadian veterinary journal. La revue veterinaire canadienne》1993,34(5):315

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Evaluation of a chromogenic antithrombin III assay using a fixed band spectrophotometer     

Andreasen CB  Lovelady S 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1993,22(2):42-44

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Effects of homozygosity and stress on blood and bone calcium and magnesium     

Kosowska B 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》1993,110(1-6):140-146

SUMMARY: The effect of homozygosity (measured by inbreeding coefficient) on the concentration of serum Ca and Mg ions as well as Mg ions concentrations in whole blood and bone tissue Mg and Ca content was studied. Wild Norway rats (Rattus norvegicus Erxleben) were crossbred with albino outbred rats (Ipf:RIZ). F]-hybrids constituted the control group (0% of inbred). Using full-sibs mating, rats of 50% and 91% of inbred were reproduced. Half of each group was exposed to physical stress (PS) involving 3 d starvation, 3 h swimming and ether anaesthesia (to collect blood for examination), the other half was given only ether anaesthesia (ES). A significant (p < 0,01) linear decrease was observed in the concentration of Ca and Mg ions in serum, of Mg and Ca ions in bone tissue due to homozygosity increase, and a quadratic decrease of Mg content in whole blood. A considerable effect of the sex on Ca and Mg ion concentrations in serum, in particular under the conditions of severe physical stress was observed as well. Physical stress differentiated significantly Mg ion content in whole blood and serum. ZUSAMMENFASSUNG: Die Senkung der Konzentration von Calcium und Magnesium im Blut und im Knochengewebe bei Ratten durch Homozygotie und Stre? Bei Ratten unterschiedlichen Inzuchtgrades (%): 0, 59 und 91 wurden unter physischem Stre? (3 Tage Hungern und 3 h Schwimmen) mittels RIA die Konzentrationen von Calcium und Magnesium Ionen im Blutserum, Mg im ganzen Blut und Mg und Ca im Knochengewebe untersucht. Der Ausgangselternbestand (0% Inzucht) waren F(1) -Kreuzungen von wilden Wanderratten (Rattus norvegius Erxleben) mit Albino Ratten der nichtverwandten Linie Ipf:RIZ. Es wurde statistisch signifikante lineare Senkung der Konzentration von Ca und Mg Ionen im Blutserum, von Mg und Ca im Knochengewebe sowie (P ≤ 0,01) der Mg Konzentration im ganzen Blut unter dem Einflu? der Inzucht gefunden. Letztere folgt einem Polynom 2. Grades. Es wurde auch ein signifikanter Einflu? von Geschlecht auf Ca und Mg Ionen Konzentration im Blutserum, besonders bei dem starken physischen Stre?, beobachtet. Der physische Stre? hat gro?en Einflu? (P ≤ 0,01) auf Mg Konzentration im Blutserum sowie im ganzen Blut.  相似文献   

What Is Your Diagnosis?     

Andreasen CB 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1993,22(3):67-69

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Genetic relationship, inbreeding and generation interval in registered Gir cattle in Brazil     

Queiroz SA  Lôbo RB 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》1993,110(1-6):228-233

SUMMARY: Two-hundred random pedigrees of cows and fifty of sires born in 1987 from the Gir herdbook of the Brazilian Association of Zebu Breeders were analized. The bull Chave de Ouro DGR no. 2851 was the most influential animal with a 7% direct relationship to the breed. Total average inbreeding was 3.62 and 3.25 for the female and male sample, respectively. The subdivision of total inbreeding into current and non-current components resulted in values of 1.62, 1.25, 2.00 and 2.00 for the female and male sample, respectively. Long-term inbreeding was the principal component of non-current inbreeding, with values of 1.52% and 1.26%, respectively. Inbreeding due to strain formation strain due formation was less important (0.48% and 0.74%, respectively). The average generation interval was 8.02 years. The breed appears not yet to be subdivided into strains but this process may be starting. The average generation interval for the pedigree population was very high. Culling of old bulls could decrease this interval. ZUSAMMENFASSUNG: Verwandtschaft, Inzucht und Generationsintervall bei Gir Herdbuchrindern in Brasilien 200 zuf?llige Stammb?ume von Kühen und 50 von 1987 geborenen Stieren wurden vom Gir Herdbuch des brasilianischen Zebu Zuchtverbandes genommen. Der Stier Chave de Ouro DGR Nr. 2851 war das einflu?reichste Tier mit einer 7%igen direkten Verwandtschaft zur Rasse. Der gesamte Inzuchtkoeffizient war 3.6 und 3.25% für die weibliche und m?nnliche Stichprobe. Die Unterteilung der gesamten Inzucht in laufende und nicht laufende Komponenten resultierte in Werten von 1.62, 1.25, 2.0, 2.0 für die weibliche und die m?nnliche Stichprobe. Langfristige Inzucht war die Hauptursache für Nicht-Rezente Inzucht mit Werten von 1.5 und 1.26. Inzucht aufgrund von Linienbildung war weniger wichtig (0.48% und 0.74%). Das durchschnittliche Generationsintervall war 8.02 Jahre. Die Rasse scheint noch nicht in Linien unterteilt zu sein, aber dieser Proze? k?nnte begonnen haben. Das durchschnittliche Generationsintervall ist mit 8.02 Jahren sehr hoch. Nichtverwendung alter Stiere k?nnte dieses Intervall verkürzen.  相似文献   

Type III von Willebrand's disease in Scottish terriers: A report of two cases          下载免费PDF全文

Johnstone IB  Norris AM  Hirzer L 《The Canadian veterinary journal. La revue veterinaire canadienne》1993,34(11):679-681

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Changes in liveweight and behaviour of alpaca dams and offspring following weaning     

Pollard JC  Littlejohn RP  Davis GH 《New Zealand veterinary journal》1993,41(4):161-165

The effects of offspring sex, weight, age, and level of interaction with the dam on responses to weaning were examined to assist in the development of a weaning protocol for alpacas. In the first study, preand post-weaning activities, and weight change over Days -12-0,0-7 and 7-16 with respect to weaning, were recorded for 20 dam-offspring (hembra-cria) pairs aged 81-200 days. Pre-weaning changes in dam and offspring weights were positively related (P<0.05). Although heavier crias tended to be found closer to their dams than lighter crias (P<0.05) no additional effect of age on the dam-offspring relationship was found. Following weaning, cria growth rates were low over Days 0-7 but improved over Days 7-16, and hembra weight change followed the same pattern. Over Days 0-2, grazing and sitting activities of hembras and crias were replaced by standing and walking along paddock fencelines, although by Day 2 fenceline activities had decreased (P<0.05). Crias which were more frequently observed at fencelines had lower post-weaning growth rates (P<0.05). In the second study, pre-weaning sucking behaviour, and weight change over Days -30-0, 0-8 and 8-16 with respect to weaning, were recorded for 19 hembra-cria pairs aged 124-160 days. During 10 hours of observation on Days -5 and -4, the total duration of sucking by individual crias varied from 0-18 minutes, and the mean +/- SEM duration of sucking was 1.94 +/- 0.113 minutes. Cria sucking behaviour was positively related to growth rate prior to and weight at weaning (P<0.05). As in the first study, pre-weaning changes in dam and offspring weights were positively related (P<0.05). Following weaning, growth rates of the crias were depressed and the hembras lost weight over Days 0-8 and 8-16. The changes in growth rate and behaviour in Studies 1 and 2 indicated that weaning can be stressful for hembras and crias. However, there was no evidence from either study that pre-weaning behavioural or physical characteristics were related to the changes.  相似文献   

Veterinary specimens of congenital malformations of the Vrolik Collection     

Baljet B 《Historia medicinae veterinariae》1993,18(1-3):1-21

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Do cats in New Zealand with renal failure require potassium supplementation?     

Smith CH  Ellison RS 《New Zealand veterinary journal》1993,41(1):47-48

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A survey of the causes of mortality in adult mink, with emphasis on the lactation period     

Schneider RR  Hunter DB 《The Canadian veterinary journal. La revue veterinaire canadienne》1993,34(2):103-108

A study of the pattern and relative frequency of diseases in adult female mink during the lactation period was undertaken. All adult females that died between parturition (April/May) and July 1, 1990, from 48 farms in southern Ontario were selected for study, and the cause of death was determined by gross necropsy. In addition, the cause of death was determined by gross necropsy for all adults and weaned kits that died on one farm between April 1988 and March 1989.

The mortality rate among farms in the 1990 study, for adult females during the lactation period, ranged from 0.2% to 10.1%, with a median of 1.9%. Nursing disease (56%) was the most common diagnosis, followed by mastitis (11%), metritis (8%), and dystocia (7%). Escherichia coli and Staphylococcus spp. were the most frequent isolates from the cases of mastitis. In the 1988/1989 study, the mortality rate was highest from May to July, with a large increase in June as a result of nursing disease.

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