Alopecia induced by salmonellosis in guinea pigs     

Singh BR  Alam J  Hansda D 《The Veterinary record》2005,156(16):516-518

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Brassinosteroid-mediated enrichment in yield attributes, active constituents and essential oil production in Mentha arvensis L.     

M. Naeem  Mohd. Idrees  M. Masidur Alam  Tariq Aftab  M. Masroor A. Khan  Moinuddin 《Russian Agricultural Sciences》2012,38(2):106-113

Recently, brassinosteroids (BRs) have emerged as a new group of growth promoting phytohormones. 28-homobrassinolide (HBR) is one of the several brassinosteroids, the role of which in enhancing growth, productivity and quality of plants, via improving various physiological processes, has been established both under stress and normal conditions. Out of a large number of essential oil bearing plants, mint (Mentha arvensis L.) constitutes the most important source of therapeutic agents used in the alternative systems of medicine. The mint plant has marvelous medicinal and aromatic values. In view of enhancing yield and quality of this medicinally important plant, a pot experiment was conducted under natural conditions of net house. The study was aimed at exploring the effect of four concentrations of HBR (10^?0, 10^?8, 10^?7 and 10^?6 M) on the performance of mint with regard to physiological attributes, herbage yield, content and yield of essential oil, and active constituents at 100 and 120 days after planting. The foliar application of HBR enhanced physiological attributes, herbage yield and the yield and content of most of the active constituents (menthol, L-methone, isomenthone and menthyl acetate) of mint at both the stages, with 10^?7 M concentration proving the best. However, the next higher concentration of HBR (10^?6 M) exhibited no further increase in the values of the attributes studied. Rather, 10^?6 M was slightly inferior to 10^?7 M concentration; but it always proved significantly better than the control.  相似文献   

Augmentation of photosynthesis,crop productivity,enzyme activities and alkaloids production in Sadabahar (<Emphasis Type="Italic">Catharanthus roseus</Emphasis> L.) through application of diverse plant growth regulators     

M. Masidur Alam  M. Naeem  M. Idrees  M. Masroor  A. Khan  Moinuddin 《Journal of Crop Science and Biotechnology》2012,15(2):117-129

Exogenous application of plant growth regulators (PGRs) has vital impact on the growth and productivity of plants. Foliar application of selected PGRs, viz. indole-3-acetic acid (IAA), indole-3-butyric acid (IBA), naphthalene acetic acid (NAA), 6-benzylaminopurine (BAP), kinetin (KIN), thidiazuron (TDZ), gibberellic acid (GA3), salicylic acid (SA), homobrassinosteroids (HBR), and triacontanol (TRIA), were carried out in order to assess the effects on growth of two cultivars (Rosea and Alba) of Catharanthus roseus L. G. Don. The Rosea and Alba plants were sprayed with PGRs (10⁻⁷ M) at 60 days after planting (DAP). Shoot and root lengths, plant fresh and dry weights, leaf-area index, total chlorophyll and carotenoids content, net photosynthetic rate, nitrate reductase and carbonic anhydrase activities, and leaf essential nutrients (N, P, and K) were analyzed at 150 DAP while yield attributes and total alkaloids of leaves and roots, contents of vincristine and vinblastine alkaloids were measured at 210 DAP. The results showed that HBR significantly improved most of the growth attributes. Application of HBR, KIN, and GA3 resulted in the ameliorative effects on plant productivity, physiological and biochemical parameters as compared to the unsprayed (control) plants. The effect of TDZ was not significantly different than the control plants. GA3 application significantly increased the vincristine content (7.3%) while TDZ exhibited reduced vincristine content. The effect of other PGR was insignificant towards vincristine and vinblastine contents. The response of Rosea toward exogenous PGRs application was better than Alba in terms of crop productivity, physiological and biochemical parameters, and alkaloid production.  相似文献   

Situation of serum antibodies against Newcastle disease virus in slaughter-age ostriches after vaccination campaign in Japan     

Ruenphet S  Jahangir A  Shoham D  Takehara K 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2012,74(4):477-480

A total of 516 slaughter-age ostrich sera were collected in Japan during 2006-2009. Sixty-one of five hundred and sixteen were positive by virus neutralization (VN) test and the titer of most positive samples was low level. Within the 61 positive sera, 35 sera were collected from unvaccinated ostriches. This result implies that these ostriches might have been infected naturally with low-virulent Newcastle disease virus (NDV). Within the 455 negative samples, 125 samples were from vaccinated ostriches. Since ostrich farmers use live attenuated vaccines, it is reasonable that the titer decreased to below detection level by 1 or 1.5 year-old. The above data indicate that NDV has infiltrated into ostrich farms in Japan, and that the efficacy of ostrich ND vaccination is often time-limited.  相似文献   

Impacts of initial stand density and thinning regimes on energy wood production and management-related CO<Subscript>2</Subscript> emissions in boreal ecosystems     

Ashraful Alam  Antti Kilpeläinen  Seppo Kellomäki 《European Journal of Forest Research》2012,131(3):655-667

An ecosystem model (Sima) was utilised to investigate the impact of forest management (by changing both the initial stand density and basal area thinning thresholds from current recommendations) on energy wood production (at energy wood thinning and final felling) and management-related carbon dioxide (CO₂) emissions for the energy wood production in Finnish boreal conditions (62°39′ N, 29°37′ E). The simultaneous effects of energy wood, timber and C stocks in the forest ecosystem (live and dead biomass) were also assessed. The analyses were carried out at stand level during a rotation period of 80 years for Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst.) growing in different fertility sites. Generally, the results showed that decreased basal area thinning thresholds, compared with current thinning, reduced energy wood (logging residues) and timber production, as well as carbon stocks in the forest ecosystem. Conversely, increased thinning thresholds increased energy wood production (ca. 1–27%) at both energy wood thinning and final felling and reduced CO₂ emissions (ca. 2–6%) related to the production chain (e.g. management operations), depending on the thinning threshold levels, initial stand density, species and site. Increased thinning thresholds also enhanced timber production and carbon stocks in the forest ecosystem. Additionally, increased initial stand density enhanced energy wood production for energy wood thinning for both species, but this reduced energy wood production at final felling for Scots pine and Norway spruce. This study concluded that increases in both initial stand density and thinning thresholds, compared with the current level, could be useful in energy wood, timber and carbon stocks enhancement, as well as reducing management-related CO₂ emissions for energy wood production. Only 2.4–3.3% of input of the produced energy (energy wood) was required during the whole production chain, depending on the management regime, species and sites. However, a comprehensive substitution analysis of wood-based energy, in respect to environmental benefits, would also require the inclusion of CO₂ emissions related to ecosystem processes (e.g. decomposition).  相似文献   

Nasal infection with Scedosporium apiospermum in a dog     

MG Coleman  MC Robson 《New Zealand veterinary journal》2013,61(1):81-83

CASE HISTORY: A 2-year-old female Siberian Husky was presented with a 6-month history of sneezing and mucous discharge from the right nostril.

CLINICAL FINDINGS: Reduced airflow through the right nostril was evident. Radiographs showed subtle loss of detail of turbinates within the right nasal chamber. Rhinoscopy revealed swollen and erythematous turbinates and a white mass within the caudal aspect of the right nasal cavity. Histopathologically, there was a heavy mixed inflammatory infiltrate in the submus- cosa of the right turbinate, and the presence of fungal hyphae and spores in the white mass. A heavy growth of Scedosporium apiospermum was cultured from the mass.

DIAGNOSIS: Chronic rhinitis of the right nasal cavity and infection with S. apiospermum.

CLINICAL RELEVANCE: This is the first reported case of S. apiospermum isolated from the nasal cavity of a dog in New Zealand. Fungal culture is necessary to differentiate this fungus from Aspergillus spp.  相似文献   

Pancreatic cyst in a cat     

MG Coleman  MC Robson  C Harvey 《New Zealand veterinary journal》2013,61(2):157-159

CASE HISTORY: A 5-year-old neutered male Cornish Rex cat was presented for evaluation with a history of vomiting over the previous 5 days.

CLINICAL FINDINGS: An abdominal mass was palpated, which was shown to be cystic by ultrasound examination. Exploratory surgery revealed this to be associated with the pancreas and it was duly resected. Histopathology was performed on the cystic mass.

DIAGNOSIS: Pancreatic cyst with associated chronic active infl ammation.

CLINICAL RELEVANCE: This is the first report of a true pancreatic cyst in a cat.  相似文献   

Pathogenesis of reproductive failure induced by Trypanosoma vivax in experimentally infected pregnant ewes     

Taciana MF Silva  Roberio G Olinda  Carla MF Rodrigues  Ant?nio CL Camara  Francisco C Lopes  Wesley AC Coelho  Múcio FB Ribeiro  Carlos IA Freitas  Marta MG Teixeira  Jael S Batista 《Veterinary research》2013,44(1):1

The present study was aimed at investigating the effect of experimental infection by Trypanosoma vivax in different stages of pregnancy, determining the pathogenesis of reproductive failure, and confirming transplacental transmission. We used 12 pregnant ewes distributed into four experimental groups: G1, was formed by three ewes infected with T. vivax in the first third of pregnancy (30 days); G2 comprised three infected ewes in the final third of pregnancy (100 days); G3 and G4 were composed of three non-infected ewes with the same gestational period, respectively. Each ewe of G1 and G2 was inoculated with 1.25 × 10⁵ tripomastigotes. Clinical examination, determination of parasitemia, serum biochemistry (albumin, total protein, glucose, cholesterol, and urea), packed cell volume (PCV), serum progesterone, and pathological examination were performed. Placenta, amniotic fluid, blood and tissues from the fetuses and stillbirths were submitted to PCR. Two ewes of G1 (Ewe 1 and 3) presented severe infection and died in the 34^th and 35^th days post-infection (dpi), respectively; but both fetuses were recovered during necropsy. In G2, Ewe 5 aborted two fetuses on the 130^th day (30 dpi) of pregnancy; and Ewe 6 aborted one fetus in the 140^th day (40 dpi) of gestation. Ewes 2 and 4 delivered two weak lambs that died five days after birth. Factors possibly involved with the reproductive failure included high parasitemia, fever, low PCV, body score, serum glucose, total protein, cholesterol, and progesterone. Hepatitis, pericarditis, and encephalitis were observed in the aborted fetuses. The presence of T. vivax DNA in the placenta, amniotic fluid, blood, and tissues from the fetuses confirms the transplacental transmission of the parasite. Histological lesion in the fetuses and placenta also suggest the involvement of the parasite in the etiopathogenesis of reproductive failure in ewes.  相似文献   

Influence of nitrogen application on dry biomass allocation and translocation in two maize varieties under short pre-anthesis and prolonged bracketing flowering periods of drought     

Md. Samim Hossain Molla  Sutkhet Nakasathien  Md. Akkas Ali  ASMMR Khan  Md. Robiul Alam 《Archives of Agronomy and Soil Science》2019,65(7):928-944

Plants have evolved different mechanisms to survive under stress conditions. This field study was conducted to evaluate the influence of nitrogen (N) application on dry biomass allocation and translocation in two maize varieties under short pre-anthesis and prolonged bracketing flowering period of drought. Two maize varieties, ‘Pioneer 30B80? and ‘Suwan 4452? receiving N at 0 (control), 160 (optimal) and 320 (supra-optimal) kg ha^?1 were subjected to short pre-anthesis and prolonged bracketing flowering periods of drought. Prolonged bracketing flowering period of drought had more suppressive effect on anthesis-silking interval, dry matter allocation and translocation, leaf greenness, contribution of current assimilates to grain (CCAG), kernel number, kernel weight and kernel yield of two maize varieties than a short pre-anthesis drought. Nitrogen application at optimal level was the best for all traits, except CCAG. The maize variety ‘Pioneer 30B80? performed better under both drought types due to more root xylem vessels of large size and more accumulation of dry matter in leaves and roots than the variety ‘Suwan 4452?. Therefore, the variety ‘Pioneer 30B80? may be planted in drought prone environments and may be used in breeding program aimed at developing drought-tolerant cultivars.  相似文献   

Comparative evaluation of different therapeutic protocols for contagious caprine pleuropneumonia in Himalayan Pashmina goats     

Yatoo  Mohd. Iqbal  Parray  Oveas Raffiq  Mir  Muheet  Bhat  Riyaz Ahmed  Malik  Hamid Ullah  Fazili  Mujeeb ur Rehman  Qureshi  Sabia  Mir  Masood Salim  Yousuf  Raja Wasim  Tufani  Noor Alam  Dhama  Kuldeep  Bashir  Shah Tauseef 《Tropical animal health and production》2019,51(8):2127-2137

Tropical Animal Health and Production - Therapeutic management of contagious caprine pleuroneumonia (CCPP) involves mostly the use of oxytetracycline followed by enrofloxacin and rarely tylosin. In...  相似文献