Monte Carlo studies of selection and inbreeding in swine. I. Genetic and phenotypic trends     

B Bereskin  C E Shelby  L N Hazel 《Journal of animal science》1969,29(5):678-686

  相似文献   

Oestrus suppression and the NGRC Rules of Racing     

Bentall H 《The Veterinary record》2006,158(25):872

  相似文献   

The relationship of soil province to molecular characterization and phylogenetic analysis of Cryptosporidium parvum isolated from calves in Georgia     

Miller DL  Mauel MJ  Liggett A  Hines ME  Frazier KS  Pence M  Whittington L  Baldwin CA 《Veterinary journal (London, England : 1997)》2006,171(3):478-482

Although Cryptosporidium spp. are found throughout the world and in multiple environmental conditions, few data are available that explore the possibility of an association between specific environmental parameters and the species or strain of Cryptosporidium. This study examines the potential association between a particular Cryptosporidium species/strain found in calves and soil provinces in Georgia, USA. Necropsy cases spanning the years 1996-2002 were tested. No significant differences (P=0.962, chi(2) test of homogeneity) between numbers of positive cases were noted among soil provinces. Phylogenetic analysis of the sequences for the PCR products revealed sequence similarity of the products with Cryptosporidium parvum strain C1. Although, clinical Cryptosporidiosis in calves was not found to be affected by soil province and may be caused by a single genotype, other genotypes may be responsible for subclinical infection and warrant further investigation.  相似文献   

AAFP and ISFM feline-friendly nursing care guidelines     

Carney HC  Little S  Brownlee-Tomasso D  Harvey AM  Mattox E  Robertson S  Rucinsky R  Manley DS 《Journal of Feline Medicine and Surgery》2012,14(5):337-349

NURSING CARE: The term nursing care means different things to different people. The authors of these AAFP and ISFM Feline-Friendly Nursing Care Guidelines define nursing care as any interaction between the cat and the veterinary team (veterinarian, technician or nurse, receptionist or other support staff) in the clinic, or between the cat and its owner at home, that promotes wellness or recovery from illness or injury and addresses the patient's physical and emotional wellbeing. Nursing care also helps the sick or convalescing cat engage in activities that it would be unable to perform without help. GUIDELINES RATIONALE: The purpose of the Guidelines is to help all members of the veterinary team understand the basic concepts of nursing care, both in the clinic and at home. This includes methods for keeping the patient warm, comfortable, well nourished, clean and groomed. The Guidelines provide numerous practical tips gleaned from the authors' many years of clinical experience and encourage veterinary team members to look at feline nursing care in ways they previously may not have considered. OVERARCHING GOAL: The primary goal of feline-friendly nursing care is to make the cat feel safe and secure throughout its medical experience.  相似文献   

Effect of farm management on topsoil organic carbon and aggregate stability in water: A case study from Southwest England,UK     

Sarah M. Collier  Sophie M. Green  Alex Inman  David W. Hopkins  Hazel Kendall  Molly M. Jahn  Jennifer A. J. Dungait 《Soil Use and Management》2021,37(1):49-62

There are few reliable data sets to inspire confidence in policymakers that soil organic carbon (SOC) can be measured on farms. We worked with farmers in the Tamar Valley region of southwest England to select sampling sites under similar conditions (soil type, aspect and slope) and management types. Topsoils (2–15 cm) were sampled in autumn 2015, and percentage soil organic matter (%SOM) was determined by loss on ignition and used to calculate %SOC. We also used the stability of macroaggregates in cold water (WSA) (‘soil slaking’) as a measure of ‘soil health’ and investigated its relationship with SOC in the clay‐rich soils. %SOM was significantly different between management types in the order woodland (11.1%) = permanent pasture (9.5%) > ley‐arable rotation (7.7%) = arable (7.3%). This related directly to SOC stocks that were larger in fields under permanent pasture and woodland compared with those under arable or ley‐arable rotation whether corrected for clay content (F = 8.500, p < .0001) or not (F = 8.516, p < .0001). WSA scores were strongly correlated with SOC content whether corrected for clay content (SOC_adj R² = .571, p < .0001) or not (SOC_unadj R² = 0.490, p = .002). Time since tillage controlled SOC stocks and WSA scores, accounting for 75.5% and 51.3% of the total variation, respectively. We conclude that (1) SOC can be reliably measured in farmed soils using accepted protocols and related to land management and (2) WSA scores can be rapidly measured in clay soils and related to SOC stocks and soil management.  相似文献   

Evaluation of cultural control and resistance‐breeding strategies for suppression of whitefly infestation of cassava at the landscape scale: a simulation modeling approach     

Hazel Parry  Andrew Kalyebi  Felix Bianchi  Peter Sseruwagi  John Colvin  Nancy Schellhorn  Sarina Macfadyen 《Pest management science》2020,76(8):2699-2710

  相似文献   

Radiographic parameters for diagnosing sand colic in horses     

Anna Kendall  Charles Ley  Agneta Egenvall  Johan Br?jer 《Acta veterinaria Scandinavica》2008,50(1):17

Background

Ingestion of sand can cause colic, diarrhoea and weight loss in horses, but these signs are unspecific and can have many other causes. The amount of sand that induces disease may vary between individuals. To avoid over-diagnosing, it is important to determine the amount of sand that can be found in horses without clinical signs of gastrointestinal disease. The aim of this study was to use previously suggested parameters for establishing a radiographic diagnosis of sand colic, and compare these findings between a sand colic group and a control group.

Methods

Abdominal radiographs were obtained in 30 horses with a complaint unrelated to the gastrointestinal tract. In addition, archived abdominal radiographs of 37 clinical cases diagnosed with sand impaction were investigated. The size of the mineral opacity indicative of sand in the abdomen was measured and graded according to a previously published protocol based on height and length. Location, homogeneity, opacity and number of sand accumulations were also recorded.

Results

Twenty out of 30 control horses (66%) had one or more sand accumulations. In the present study; height, length and homogeneity of the accumulations were useful parameters for establishing a diagnosis of sand colic. Radiographically defined intestinal sand accumulation grades of up to 2 was a common finding in horses with no clinical signs from the gastrointestinal tract whereas most of the clinical cases had much larger grades, indicating larger sand accumulations.

Conclusion

Further work to establish a reliable grading system for intestinal sand content is warranted, but a previously proposed grading system based on measurements of height and length may be an alternative for easy assessment of sand accumulations in the meantime. The present study indicates that a grade 1 – 2 sand accumulation in the intestine is a frequent finding in horses. When working up a case with clinical signs from the gastrointestinal tract, one or more accumulations of this grade should not be considered the cause until other possibilities have been ruled out.  相似文献   

A pilot study of Australian pet owners who engage in social media and their use,experience and views of online pet health information     

LR Kogan  SJ Hazel  JA Oxley 《Australian veterinary journal》2019,97(11):433-439

  相似文献   

Book Review     

Kim Kendall 《Australian veterinary journal》1999,77(7):441-441

  相似文献   

Biocultural Diversity of Sarangani Province,Philippines: An Ethno-Ecological Analysis   总被引：1，自引：0，他引：1  

Florence Lasalita ZAPICO  Catherine Hazel AGUILAR  Angelie ABISTANO  Josephine Carino TURNER  Lolymar Jacinto REYES 《水稻科学》2015,22(3):138-146

This paper discussed effects of lowland-associated influences on upland ecology, food security and biocultural diversity in the Sarangani farming communities of the Philippines. In the uplands of Sarangani Province, the conservation of traditional rice varieties, the centrality of rice in tribal life, and the continued observance of planting rituals attest to its cultural significance and convey a common desire for cultural preservation and community solidarity. Economic and socio-political pressures had transformed tribal communities, although vestiges of traditional farming systems are still being practiced in remote sitios(villages). Changing land use patterns had also resulted in shrinking farm sizes and consequently in food insecurity in the Sarangani uplands. Extractive industries(i.e. logging, mining and charcoal making) and swidden farming were observed to cause widespread environmental degradation, while modern agriculture had undermined the capacity of indigenous peoples to survive because of their complete dependence on lands and resources. With the reality that cultural and biological diversities are inextricably linked, trans-disciplinary strategies coupling indigenous knowledge systems with scientific knowledge should, therefore, be instituted to save the Sarangani upland ecosystem, the indigenous peoples and their tribal resources.  相似文献