Rotavirus infection in calves in Bangladesh     

S. A. Selim  K. M. S. Aziz  A. J. Sarker  H. Rahman 《Veterinary research communications》1991,15(4):327-333

Faecal samples from 434 calves under 1 year of age (307 diarrhoeal and 127 normal) were collected from three dairy farms and one village in selected areas of Bangladesh. The samples were tested by an enzyme-linked immunosorbent assay (ELISA) to detect the presence of rotavirus antigen. Of 402 dairy calves tested, 28 (7.0%) were positive, of which 21 (7.2%) were from diarrhoeic calves and 7 (6.3%) from non-diarrhoeic calves. Rotavirus infection varied from farm to farm (2.7–9.2%) and there was no positive response from any of the 32 village calves. Rotavirus was most commonly found in calves of 1 week of age or less (up to 22.2% in one group) but was not found in any calves later than 6 months of age. More than 80% of rotavirus-positive samples from diarrhoeic calves exhibited a titre of 128 or more (geometric mean 345±4.5), whereas non-diarrhoeal calves had titres less than or equal to 128 (geometric mean=29±1.9), suggesting that rotavirus infection in calves in Bangladesh was mostly associated with diarrhoea.  相似文献   

Molecular characterization of stem gall disease caused by Agrobacterium tumefaciens (= Agrobacterium biovar 1) on Citrus trees as a new host,in the Eastern Mediterranean region of Turkey     

Bozkurt  İ. Adem  Soylu  Soner  Kara  Merve  Doksöz  Senem Filiz  Altan  Bülent  Çarpar  Hakan 《植物病害和植物保护杂志》2023,130(1):13-21

Journal of Plant Diseases and Protection - Citrus (Citrus spp. L.), which has high nutritional and economic value, is one of the most commonly grown fruits in Turkey. In spring 2020, large aerial...  相似文献   

Managing the water balance of The Fayoum Depression,Egypt     

W. Wolters  Nadi Selim Ghobrial  H. M. Van Leeuwen  M. G. Bos 《Irrigation and Drainage Systems》1989,3(2):103-123

A study of the water balances of The Fayoum irrigated lands and Lake Qarun was made to investigate the management of the irrigation system and the efficiency of irrigation water use. The two water balances are strongly interrelated. The drainage flow to Lake Qarun and the water level of the Lake are in delicate balance. A rise in Lake level causes the inundation of adjacent land. Management of The Fayoum water balance assumes control over irrigation water flows, but this control has technical and organizational limitations. Also discussed is the influence of irrigation practices in The Fayoum on the water balance (e.g., the autumn flushing of fields and farmers' preference for not irrigating at night in winter). Notwithstanding a high overall efficiency, irrigation efficiency during the winter is low. The reasons for this are given, together with the constraints against improving system management. Improved uniformity of the division and application of irrigation water will enable a better technical control of flows and will result in better water management in The Fayoum. Abbreviations: FID — Fayoum Irrigation Department, 1 feddan (fe) — 0.4 ha, 1 mcm — 1 million cubic metres: an average annual flow of 3.17 m³/s gives 100 mcm, m³/fe.year — supplied volume (m³) per surface area (fe) per year: 1000 m³/fe.year equals 240 mm/year, MSL — Mean Sea Level  相似文献   

Division of irrigation water in The Fayoum,Egypt     

W. Wolters  Nadi Selim Ghobrial  M. G. Bos 《Irrigation and Drainage Systems》1987,1(2):159-172

The division of irrigation water in The Fayoum, Egypt, has been measured. Factors influencing this division are discussed: the hydraulic conditions at structures and canals, the operation regime of gates, lack of reliable gauge data for system operation, shortage of labour, and the water level in Lake Qarun. A deviation from uniform supply has been found for the entire Fayoum, but also along a lateral and sub-lateral. The reasons for this are discussed and suggestions for possible technical improvements of The Fayoum system are given.Abbreviations FWSBM Fayoum Water and Salt Balance Model Project - MSL Mean Sea Level at Alexandria - FID Fayoum Irrigation Department - mcm million cubic metres  相似文献   

Evaluation of Bacillus amyloliquefaciens on the growth performance,intestinal morphology,hematology and body composition of Nile tilapia,Oreochromis niloticus     

Rasha M. Reda  Khaled M. Selim 《Aquaculture International》2015,23(1):203-217

  相似文献   

Sertoli cell proliferation during the post hatching period in domestic fowl   总被引：1，自引：0，他引：1  

H. Hakan Bozkurt  Abit Akta?  M. Ba?ak Ulkay  Umay B. Firat 《Journal of veterinary science (Suw?n-si, Korea)》2007,8(3):219-222

  相似文献   

Postnatal Osteological Development of the Hyoid Bone in the New Zealand White Rabbit     

Atalgin H  Kürtül I  Bozkurt EU 《Veterinary research communications》2007,31(6):653-660

This study augments knowledge of bone growth by observing the development of the hyoid bone in the New Zealand White rabbit. Preserved hyoid bones representing five different age periods, each period including five individuals and the total number of animals being 25, were fixed in 3.5% formaldehyde solution and 95% ethanol, followed by a pure acetone bath. They were then stained with an alcian blue–alizarin red combination. The mode of bone formation was intracartilaginous type ossification. While the basihyoideum and thyrohyoideum were observed to start ossifying first at prenatal stage, indicating that they are the main skeletal structures of the hyoid apparatus, the ceratohyoideum and lingual process began to ossify in the second and third periods. The separately occurring primary ossification centres fused completely among themselves in the fifth period. Because no further ossification centers were observed and the ossified parts continued the development and growth, the research was terminated after 10 weeks of age.  相似文献   

Fluvalinate metabolism by rhesus monkeys     

G B Quistad  S Selim 《Journal of agricultural and food chemistry》1983,31(3):596-599

  相似文献   

Preliminary studies on experimental toxoplasmosis of sheep in Egypt     

S A Michael  A H El-Refaii  M K Selim 《Monatshefte für Veterin?rmedizin》1972,27(5):183-188

  相似文献   

Diagnosis of bovine subclinical mastitis by determination of lysozyme level in milk     

A Farid  S A Selim  M Abdel-Ghani  M Ismail 《Archiv fuer experimentelle veterinaermedizin》1984,38(6):857-862

  相似文献