仔猪梭菌性肠炎的防治经验     

黄建亮 《中国兽药杂志》2006,40(3):56-57

某场饲养的64头仔猪，于10d内发生梭菌性肠炎，采用疫苗免疫和中药治疗进行防治取得了很好的效果，其中中药治疗32例，治愈25例。  相似文献   

Gene Expression and Developmental Competence of Bovine Embryos Produced In Vitro with Different Serum Concentrations     

ATD de  Oliveira  RFF Lopes  JL Rodrigues 《Reproduction in domestic animals》2006,41(2):129-136

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Pyloric outflow obstruction secondary to sclerosing encapsulating peritonitis in a dog     

KA Carroll  ML Wallace  TL Hill  JW Bartges  JL Ruby  AT Mulder II  JI Helmick 《Australian veterinary journal》2020,98(1-2):11-16

A 6-year-old, male neutered mixed breed dog was presented emergently with a three-week history of hyporexia, vomiting, diarrhoea and weight loss. Upon examination, the patient was dull, had generalised muscle atrophy, moderate abdominal pain and a mild amount of peritoneal effusion. A fluid-filled, distended, corrugated small bowel with marked gastroparesis and moderate peritoneal effusion was noted on abdominal ultrasonography. Endoscopy revealed hyperaemic and friable mucosa and a subjectively narrowed pylorus. Emergency exploratory celiotomy was performed due to worsening patient condition and revealed thick, diffuse, fibrous adhesions of the abdominal cavity. Based on these findings, sclerosing encapsulating peritonitis (SEP) was suspected. A large mass of omentum adjacent to the greater curvature of the stomach had caused a pyloric outflow obstruction. Adhesiolysis was attempted but was unsuccessful due to the friability of the small intestines. The dog was humanely euthanased under anaesthesia. A diagnosis of SEP was confirmed via necropsy. No underlying cause was identified. This is the first known case of a pyloric outflow obstruction secondary to SEP in a dog. Although rare, this condition should be considered as a differential for dogs with signs of a pyloric outflow obstruction with concurrent ascites and abdominal pain, hyporexia, vomiting and diarrhoea.  相似文献   

Earth-Based Observations of the Galileo Probe Entry Site     

G Orton  JL Ortiz  K Baines  G Bjoraker  U Carsenty  F Colas  A Dayal  D Deming  P Drossart  E Frappa  J Friedson  J Goguen  W Golisch  D Griep  C Hernandez  W Hoffmann  D Jennings  C Kaminski  J Kuhn  P Laques  S Limaye  H Lin  J Lecacheux  T Martin  G McCabe  T Momary  D Parker  R Puetter  M Ressler  G Reyes  P Sada  J Spencer  J Spitale  S Stewart  J Varsik  J Warell  W Wild  P Yanamandra-Fisher  G Fazio  J Hora  L Deutsch 《Science (New York, N.Y.)》1996,272(5263):839-840

Earth-based observations of Jupiter indicate that the Galileo probe probably entered Jupiter's atmosphere just inside a region that has less cloud cover and drier conditions than more than 99 percent of the rest of the planet. The visual appearance of the clouds at the site was generally dark at longer wavelengths. The tropospheric and stratospheric temperature fields have a strong longitudinal wave structure that is expected to manifest itself in the vertical temperature profile.  相似文献   

Use of Relief Contrast® Objective to Improve Sperm Morphometric Analysis by Isas® Casa System in the Ram     

JL Yániz  S Capistrós  S Vicente‐Fiel  C Soler  M Núñez de Murga  P Santolaria 《Reproduction in domestic animals》2013,48(6):1019-1024

The aim of this study was to develop a new method for morphometric assessment of the sperm head and acrosome in the ram. Ejaculates from 10 adult males were collected using an artificial vagina. For each ejaculate, 10 semen smears were prepared, air‐dried and divided (in pairs) into the following five treatment groups: (i) washed in distilled water and allowed to dry without further processing (DRY); (ii) fixed in 50% methanol (MET); (iii) fixed in 2% glutaraldehyde (GLUT); (iv) fixed and stained with Hemacolor^® (HEM) and (v) fixed and stained with SpermBlue^® (SB). The prepared slides were examined with a 40 × Relief Contrast^® objective (RC) and processed with ISAS^® commercial software. The use of RC optics increased the contrast between acrosome and sperm head, allowing capture and morphometric analysis by ISAS of sperm heads and the acrosome, even in non‐stained samples. MET and GLUT groups resulted in a lower number of acceptable, that is, correctly delineated, sperm heads than those in the SB, and SB and HEM groups, respectively (p < 0.05). The higher proportion of sperm discarded in MET and GLUT groups may be explained by a higher presence of artefacts. For the majority of the primary morphometric parameters of the sperm head and the acrosomal area, the relationship between treatments was the following: GLUT> HEM≥ MET≥ SB> DRY. When studying the proportion of the sperm head covered by the acrosome, the relation between treatments was: MET> DRY = GLUT = SB> HEM. It was concluded that the new method for sperm morphometric assessment allows the simultaneous assessment of sperm head and acrosome in the ram by the first time, even in unprocessed semen smears.  相似文献   

Influence of the FecXR Allele in Heterozygous Ewes on Follicular Population and Outcomes of IVP and ET using LOPU‐Derived Oocytes     

B Lahoz  JL Alabart  J Folch  P Sánchez  E Echegoyen  MJ Cocero 《Reproduction in domestic animals》2013,48(5):717-723

Ewes heterozygous for the FecX^R allele (R+) in the bone morphogenetic protein 15 (BMP15) gene display increased ovulation rate and prolificacy. Besides this phenotypic advantage, the influence of the FecX^R allele on follicle number and size, oocyte competence and in vitro production (IVP) remains undefined. With these aims, 8 R+ and 8 wild‐type (++) ewes were subjected to 2 laparoscopic ovum pick‐up (LOPU) trials (four sessions per trial; two with and two without FSH) and subsequent IVP and fresh embryo transfer. All follicles >3 mm were punctured (n = 1673). Genotype did not significantly affect the number of punctured follicles per ewe and session (10.4 and 10.2 in R+ and ++ untreated ewes, 17.4 and 14.3 in R+ and ++ FSH‐treated ewes, respectively), but follicular diameter of R+ ewes was significantly reduced compared with ++ ewes (?0.2 mm in untreated and ?0.8 mm in FSH‐treated ewes; p < 0.01). R+ ewes showed higher recovery rate and increased numbers of total and suitable cumulus–oocyte complexes for in vitro maturation (IVM). Similar rates of day 8 blastocysts were observed in R+ (36.1%, 147/407) and ++ (32.6%, 100/307) ewes, but the final output of day 8 blastocysts per ewe and session was higher in R+ ewes (+0.75; p < 0.005), without differences in survival rate at birth of the transferred embryos (40.4%, 21/52 vs 36.4%, 16/44, respectively). In conclusion, a higher number of oocytes proven to be competent for in vitro development and embryo survival after transfer are recovered from R+ ewes, despite the lower mean size of their follicles at puncture.  相似文献   

Spatial pattern formation in an insect host-parasitoid system     

JL Maron  S Harrison 《Science (New York, N.Y.)》1997,278(5343):1619-1621

Spatial models in ecology predict that populations may form patchy distributions within continuous habitats, through strong predator-prey or host-parasitoid interactions combined with limited dispersal. Empirical support of these models is provided. Parasitoids emanating from a population outbreak of tussock moths (Orgyia vetusta) suppressed the growth of nearby experimental populations of the moth, while experimental populations farther away were able to grow. This result explains the observed localized nature of tussock moth outbreaks and illustrates how population distributions can be regulated by dynamic spatial processes.  相似文献