Epidemiology of gastrointestinal nematodes of sheep managed under traditional husbandry system in Kashmir valley   总被引：1，自引：0，他引：1  

Tariq KA  Chishti MZ  Ahmad F  Shawl AS 《Veterinary parasitology》2008,158(1-2):138-143

The present study was conducted with the objective to investigate the seasonal epidemiological prevalence of gastrointestinal tract (GIT) nematodes in different age groups, sexes and breeds (genotypes) of sheep through necropsy and faecal analysis over a period of 2 years in Kashmir valley, India. A total of 1533 sheep were examined [faecal examination: 1035 (year 1: 561, year 2: 474); necropsy: 498 (year 1: 232, year 2: 266)]. Out of these, 945 (61.64%) were found infected [faecal examination: 697 (67.34%, year 1: 390 (69.51%), year 2: 307 (46.99%); necropsy: 248 (49.79%, year 1: 123 (53.01%), year 2: 125 (64.69%)] with GIT nematodes. The over all prevalence of GIT nematodes in sheep in year 1 was 64.76 and 58.37% in year 2 (P=0.04). The parasites in decreasing order of prevalence (%) in sheep were Haemonchus contortus (59.6); Ostertagia circumcincta (38.0); Bunostomum trigonocephalum (37.7); Chabertia ovina (37.7); Trichostrongylus spp. (33.9); Nematodirus spathiger (29.4); Oesophagostomum columbianum (28.4); Trichuris ovis (23.5) and Marshallagia marshalli (22.1). Season, sex, age, and genotype were the factors that influenced the epidemiological prevalence of GIT nematodes in sheep in the present study. The maximum nematode infection was observed in summer season and lowest in winter (P=0.0005). Local Kashmiri breed was less infected as compared to other genotypes (P>0.05). Lower age groups were more infected than adult animals (P>/=0.05). Prevalence was higher in rams (males) than eves (females) (P>0.05). The present study will initially be of great significance to add to the existing knowledge of the epidemiology of GIT nematodes of small ruminants and the findings will be quite helpful to devise the appropriate control and prophylactic strategies for GIT nematodiasis of sheep reared under the temperate agro-climatic conditions.  相似文献   

A cross-sectional study of methicillin-resistant Staphylococcus aureus at the equine-human interface     

Waqar  Namra  Amin  Quratulain  Munir  Tariq  Ikram  Muhammad Sohaib  Shahzad  Naveed  Mirza  Arkim  Ali  Arshad  Arshad  Muhammad Imran 《Tropical animal health and production》2019,51(7):1927-1933

Tropical Animal Health and Production - The present study aimed at investigating the percent prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in equines and associated personnel. A...  相似文献   

Determination of liver and muscle aflatoxin B1 residues and select serum chemistry variables during chronic aflatoxicosis in broiler chickens          下载免费PDF全文

Zahid Hussain  Habib‐ur‐ Rehman  Sohail Manzoor  Shahida Tahir  Muhammad Mukhtar 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2016,45(2):330-334

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Genetic diversity analysis of Afghan wheat landraces (Triticum aestivum) using DArT markers     

Quahir Sohail  Alagu Manickavelu  Tomohiro Ban 《Genetic Resources and Crop Evolution》2015,62(8):1147-1157

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Efficiency of Dry Matter and Nitrogen Accumulation and Redistribution in Wheat as Affected by Tillage and Nitrogen Management     

Ahmad Khan  Mohammad Tariq Jan  Amanullah Jan  Zahir Shah  Mohammad Arif 《Journal of plant nutrition》2014,37(5):723-737

Field experiments were conducted over 2 years with the hypothesis that farmyard manure (FYM), soybean residue (SR) as sole and/or in combination with urea under different tillage practices has similar effects on crop nitrogen (N) status and accumulation of dry matter (DM). Conventional ploughed plots had higher DM than other. Post anthesis accumulation of DM for minimum tillage (MT) was 4% higher than DT. Incorporation of 20 tons FYM ha^?1 combined with 30 or 60 kg ha^?1 had higher DM and N partitioned to leaves, stem, and spike than control. Leaves accumulated more DM at anthesis stage than other, whereas stem and spike at maturity than earlier stages. Fertilized plots had higher DM and N redistribution efficiency than control. However, N remobilization increased linearly with increasing DM accumulation (r² = 22%). It was concluded that FYM coupled with N under MT showed marked variations for DM partition and N status in wheat than other treatments.  相似文献   

Spatiotemporal patterns,annual baseline and movement-related incidence of Streptococcus agalactiae infection in Danish dairy herds: 2000–2009     

Marshal M. Mweu  Søren S. Nielsen  Tariq Halasa  Nils Toft 《Preventive veterinary medicine》2014

Several decades after the inception of the five-point plan for the control of contagious mastitis pathogens, Streptococcus agalactiae (S. agalactiae) persists as a fundamental threat to the dairy industry in many countries. A better understanding of the relative importance of within- and between-herd sources of new herd infections coupled with the spatiotemporal distribution of the infection, may aid in effective targeting of control efforts. Thus, the objectives of this study were: (1) to describe the spatiotemporal patterns of infection with S. agalactiae in the population of Danish dairy herds from 2000 to 2009 and (2) to estimate the annual herd-level baseline and movement-related incidence risks of S. agalactiae infection over the 10-year period.  相似文献   

Characterization of HMW-GS and evaluation of their diversity in morphologically elite synthetic hexaploid wheats     

Awais Rasheed  Tania Safdar  Alvina Gul-Kazi  Tariq Mahmood  Zahid Akram  Abdul Mujeeb-Kazi 《Breeding Science》2012,62(4):365-370

High molecular weight glutenin subunit composition and variation in 95 Elite-1 synthetic hexaploid (SH) wheats (Triticum turgidum/Aegilops tauschii; 2n = 6× = 42; AABBDD) were determined by sodium dodecyl sulphate polyacrylamide gel electrophoresis method (SDS-PAGE). Twenty two different alleles at Glu-1 loci in SHs were observed. Forty four different patterns of HMW-GS in synthetics were found. This higher HMW glutenin composition was due to higher proportion of D-genome encoded subunits in these SHs. 8% urea/SDS-PAGE better discriminated subunit 2* than 12% gels. However 12% urea/SDS-PAGE allowed differentiated mobility of Glu-D^t1 subunits. Genetic variability at Glu-D^t1 locus was greater than Glu-A1 and Glu-B1 loci. The relative high frequency of superior alleles, Glu-B1b and Glu-D^t1d indicated the superior bread making quality attributes embedded in these synthetic hexaploid wheats. Of the 95 Elite-1 SHs 27.1% possessed superior alleles at Glu-A1 and 51% had superior alleles at Glu-B1 locus. At Glu-D^t1 frequency of inferior allele 1Dx2 + 1Dy12 was very low (5.26%) and nine different rare alleles along with the higher frequency (22.1%) of D-genome encoded subunit, 1Dx5 + 1Dy10, were observed. These superior alleles shall form the priority selective sieve for their usage in wheat improvement efforts.  相似文献   

The response of genetically distinct bread wheat genotypes to salinity stress     

Zulfiqar Ali  Abdus Salam  Faqir Muhammad Azhar  Iftikhar Ahmad Khan  Asif Ali Khan  Sultan Bahadur  Tariq Mahmood  Ashfaq Ahmad  Richard Trethowan 《Plant Breeding》2012,131(6):707-715

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Validation of molecular markers for resistance among Pakistani chickpea germplasm to races of <Emphasis Type="Italic">Fusarium oxysporum</Emphasis> f. sp. <Emphasis Type="Italic">ciceris</Emphasis>     

Hina Ali  Muhammad Ahsan ul Haq  Tariq Mahmud Shah  Mehboob ur Rahman  Weidong Chen 《European journal of plant pathology / European Foundation for Plant Pathology》2012,132(2):237-244

DNA markers in chickpea, targetting resistance genes for different races of Fusarium oxysporum f.sp. ciceris (Foc), have been identified in chickpea, but validation of these markers is essential for effective use in resistance breeding. In view of this, different simple sequence repeats (SSR) markers were analysed in Pakistani germplasm including induced mutants and some local lines. Most of the SSR markers showed good correlation with phenotypic evaluation of genotypes to different races of Foc and may be used effectively in resistance breeding, except those markers for race 3. Markers for race 3 showed deviations from phenotypic data and the reason might be that race 3 is actually Fusarium proliferatum as reported recently and resistance to this race might involve some other major resistance genes. Poor correlation of markers with foc-3 on LG2 in our study and a recent report of independent segregation of foc-2 and foc-3 in near isogenic lines suggested that linkage distances among different resistance genes need further investigation. Moreover three Pakistani mutant lines (97477, CM444/92 and CM368/93) depicted high levels of resistance to Foc races and can be deployed as a valuable source in resistance breeding programmes.  相似文献   

Quantitative trait loci for early maturity and their potential in breeding for earliness in Brassica juncea     

Tariq Mahmood  Muhammad H. Rahman  Gary R. Stringam  Francis Yeh  Allen G. Good 《Euphytica》2007,154(1-2):101-111

A doubled haploid population of Brassica juncea, developed from a cross between two parental lines differing for days to maturity, was used to study the efficiency of indirect selection for a primary trait through selection of secondary trait(s) over direct selection for the primary trait when quantitative trait loci information is available for both primary and secondary traits, and applied. Days to maturity was considered as primary trait, while days to first flowering, days to end of flowering, flowering period and plant height were considered as secondary traits. An RFLP linkage map was employed for QTL analysis of maturity and maturity-determinant traits, and a stable QTL B6 simultaneously affecting these two types of traits was identified. This linked QTL explained 11.7% phenotypic variation for days to maturity, 20.7% variation for days to first flowering, 24.3% variation for days to end of flowering and 14.4% variation for plant height. Phenotypic evaluation of maturity and/or maturity-determinant traits, viz. days to first flowering, days to end of flowering and plant height revealed that limited genetic advance for early maturity can be achieved through phenotypic selection of the primary and/or the secondary trait(s). However, the estimates of genetic advance for early maturity based on combined phenotypic evaluation and linked QTL data was found to be, at least, three times higher compared to genetic advance based on phenotypic evaluation only, demonstrating the potential of marker-assisted selection in breeding for early maturity in B. juncea.  相似文献