The splayleg disease: A form of congenital glucocorticoid myopathy?     

Isa Jirmanová 《Veterinary research communications》1983,6(1):91-101

In countries with modern pig industries an increasing percentage of newborn piglets is affected by congenital myofibrillar hypoplasia, also called splayleg or spraddleleg. The main pathomorphological features of this disease are myofibrillar hypoplasia and degeneration. Glucocorticoid myopathy induced in immature muscles of early postnatal rats and rabbits has a pathomorphology very similar to that of splayleg disease. Also in other respects the splayleg disease resembles the glucocorticoid myopathy, as summarized in this contribution. It is suggested that splayleg might represent a congenital form of glucocorticoid myopathy resulting from stress and hormonal imbalance of pregnant sows which affect the fetuses.  相似文献   

Rhizobial symbiosis efficiency increases in common bean under sparingly soluble calcium-phosphorus     

Abdi Neila  Bargaz Adnane  L'taief Boulbaba  Hmissi Imen  Bouraoui Manel  Sifi Bouaziz 《Journal of plant nutrition》2017,40(13):1829-1841

The use of phosphate-solubilizing rhizobia as a rhizobial inoculant improves plant nutrient uptake (nitrogen (N) and phosphorus (P)) and subsequently crop yield stability. Three common bean varieties namely Coco blanc, Wafa, and Rebia were inoculated with the Rhizobium strain “Ar02” and grown under 250 μmol P as KH₂PO₄ Pi and 250 μmol P as Ca₃HPO₄ (Ca-P). Rebia showed the highest root biomass increase (35%) both under Pi and Ca-P supplies, while Wafa's root biomass significantly decreased under Ca-P condition. Application of Ca₃PO₄ stimulated acid phosphatase activities in shoots (50%), roots (45%) and nodules (49%) of Coco blanc variety as compared to Rebia and Wafa. Moreover, phenols content was enhanced in Wafa roots as compared to Coco blanc roots. N content increased in shoots (14% under Pi and Ca-P supplies) and nodules (6% under Ca-P supplies) of Coco blanc. P and K nutrition largely varied in response to P supplies through all plant parts.  相似文献   

Scaling hetero-epitaxy from layers to three-dimensional crystals     

Falub CV  von Känel H  Isa F  Bergamaschini R  Marzegalli A  Chrastina D  Isella G  Müller E  Niedermann P  Miglio L 《Science (New York, N.Y.)》2012,335(6074):1330-1334

Quantum structures made from epitaxial semiconductor layers have revolutionized our understanding of low-dimensional systems and are used for ultrafast transistors, semiconductor lasers, and detectors. Strain induced by different lattice parameters and thermal properties offers additional degrees of freedom for tailoring materials, but often at the expense of dislocation generation, wafer bowing, and cracks. We eliminated these drawbacks by fast, low-temperature epitaxial growth of Ge and SiGe crystals onto micrometer-scale tall pillars etched into Si(001) substrates. Faceted crystals were shown to be strain- and defect-free by x-ray diffraction, electron microscopy, and defect etching. They formed space-filling arrays up to tens of micrometers in height by a mechanism of self-limited lateral growth. The mechanism is explained by reduced surface diffusion and flux shielding by nearest-neighbor crystals.  相似文献   

Effect of sex and protein level on the intermediary metabolism,growth, deposition of nutrients and profile of volatile compounds of silver catfish (Rhamdia quelen)          下载免费PDF全文

T.J. Adorian  P.I. Mombach  F.R. Goulart  D. Pianesso  M.B. Fagundes  R. Wagner  R. Lazzari  J. Radünz Neto  L.P. da Silva 《Aquaculture Nutrition》2018,24(2):793-801

This study aimed at evaluating the intermediary metabolism, growth, nutritional deposition and volatile compounds of fillet of female and male silver catfish created in cages having commercial diets at two levels of crude protein. A total of 1,200 silver catfish were randomly distributed in 12 cages with initial weight of 130.05 ± 0.14 g and visually sexed. Commercial diets with 280 g/kg and 320 g/kg of crude protein were offered twice a day in the amount of 30 g/kg their biomass/day, for 90 days. At the end of the experimental period, biometry was performed to collect data, blood and tissue for later determination of plasma metabolites, hepatic metabolites, digestive enzymes, volatile compounds, deposition of nutrients and calculation of growth variables. There were metabolic differences due to the sex of silver catfish, reflecting greater productive efficiency on the females. For the plasma metabolites, in male, there were higher values of triglycerides and free amino acids than in female. For hepatic glucose, males fed with diet containing 280 g/kg of crude protein showed higher values. For protein and free amino acids, the interaction between males that received 320 g/kg of crude protein was higher. In males, there were higher values of AST and hepatic glycogen than in females. In turn, hepatic ammonia was higher in females. There was greater activity of acid protease enzymes and trypsin in the silver catfish that received diets containing 320 g/kg of crude protein. Regardless of sex, in this cultivation phase, diets with 320 g/kg of crude protein provided better performance to silver catfish. The profile of volatile compounds suggests mild odour for the fillet of silver catfish, which can be a competitive advantage of the species.  相似文献   

The prevalence of Yersinia-specific antibodies in cattle in Bavaria     

Bartling C  Truyen U  Isa G  Neubauer H 《Berliner und Münchener tier?rztliche Wochenschrift》2004,117(11-12):499-507

Yersiniosis is considered to be an emerging infection in humans. It is believed that contaminated pork is the main source of infection for man but also beef and cow milk might cause infection in the consumer. Therefore, a survey was carried out to obtain actual data on the prevalence of anti-Yersinia antibodies within cattle. 600 serum samples were taken form 120 farms located in 43 districts of Bavaria, Germany. Antibodies were detected in 396 animals (65.7%) revealing a distribution of 52.3% of anti-YopD, 40.3% of anti-YopM, 24.0% of anti-YopH, 21.2% of anti-YopE and 3.0% of anti-V-antigen antibodies. 21 reactionpatterns out of 32 possible patterns were identified. Anti-YopD and YopM antibodies were sufficient to detect all Yersinia antibody positive sera. No regional differences in the distribution of antibodies were noted.  相似文献   

Development of a monoclonal blocking ELISA for the detection of antibodies against fowlpox virus     

Isa G  Pfister K  Kaaden OR  Czerny CP 《Journal of veterinary medicine. B, Infectious diseases and veterinary public health》2002,49(1):21-23

To provide a fast and easy method to detect antibodies against fowlpox virus (FWPV) particularly in high numbers of chicken sera we established a monoclonal blocking enzyme-linked immunosorbent assay (ELISA). We chose two different monoclonal antibodies (mAb), anti-FWPV 3D9/2B3 and anti-FWPV 8F3/2E11, which are both directed against the 39-kDa protein of FWPV strain HP-1. The blocking ELISA depends on the blocking of mAb binding to solid-phase antigen in the presence of positive serum. For an epidemiological study a total of 184 serum samples from Gambian chicken flocks were analysed against each of the mAbs. Four of the sera were shown to contain FWPV antibodies. These four sera showed a positive cut-off value of more than 50% inhibition exclusively in the test against the mAb anti-FWPV 8F3/2E11. This phenomenon can be explained by the binding of the mAbs to distinct epitopes on the same protein.  相似文献   

Limb Deformities of Farmed Ostrich (Struthio camelus) Chicks in Botswana     

Mushi EZ  Binta MG  Chabo RG  Isa JF  Phuti MS 《Tropical animal health and production》1999,31(6):397-404

Limb deformities were detected in 135 out of 885 ostrich chicks, giving a prevalence of 15.3%. Tibiotarsal rotation affected 73% of the chicks with limb deformities, whereas rolled toes accounted for 36%. The right leg was more often affected than the left leg. The incidence of limb deformities was highest in 2- to 3-week-old ostrich chicks. The incidence of limb deformities was highest at the beginning of the breeding season and lowest towards the end, when it was relatively warmer. The mean serum manganese and zinc levels in deformed ostrich chicks were higher than the levels reported for normal chicks.  相似文献   

Coccidia oocysts in the faeces of farmed ostrich (Struthio camelus) chicks in Botswana     

Mushi EZ  Isa JF  Chabo RG  Binta MG  Kapaata RW  Ndebele RT  Chakalisa KC 《The Onderstepoort journal of veterinary research》1998,65(4):281-284

Coccidia oocysts were demonstrated in the faeces of 53 (about 34%) of 156 apparently healthy ostrich chicks. Young chicks had the highest proportion of infestation while those more than 9 weeks old had no oocysts at all in their faeces. These coccidia may be considered no pathogenic since the infected chicks grew normally without any evidence of diarrhoea.  相似文献   

Culicoides (Diptera: Ceratopogonidae) associated with horses at Mogoditshane,Gaborone, Botswana   总被引：1，自引：1，他引：0  

Mushi  E.Z.  Isa  J.F.W.  Chabo  R.G.  Binta  M.G.  Kapaata  R.W. 《Veterinary research communications》1998,22(5):295-297

Veterinary Research Communications -  相似文献   

Northern Dog Disease: A Note on changes in the brains of dogs from Fort Ross, 1946     

A. Savage  J. M. Isa 《Canadian journal of veterinary research》1947,11(6):161-162

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