Relationship between aggressive and avoidance behaviour by dogs and their experience in the first six months of life     

Appleby DL  Bradshaw JW  Casey RA 《The Veterinary record》2002,150(14):434-438

The early experiences of dogs showing signs of avoidance behaviour or aggression were compared with those of dogs from the same clinical population that did not show such behaviour. The occurrence of each behavioural sign was tested for its association with the dog's maternal environment, the environment it experienced between three and six months of age, and the age at which it had been acquired. Non-domestic maternal environments, and a lack of experience of urban environments between three and six months of age, were both significantly associated with aggression towards unfamiliar people and avoidance behaviour. Aggression during a veterinary examination was more likely in dogs from non-domestic maternal environments. There was no significant association with either environment for aggression towards familiar people, or towards dogs.  相似文献   

Crude Mare Follicular Fluid Exerts Chemotactic Effects on Stallion Spermatozoa     

MC Navarro  J Valencia  C Vázquez  E Cózar  C Villanueva 《Reproduction in domestic animals》1998,33(5):321-324

  相似文献   

Bovine cranial zygomycosis caused by Saksenaea vasiformis     

BD HILL  PF BLACK  M KELLY  D MUIR  WAJ MC DONALD 《Australian veterinary journal》1992,69(7):173-174

  相似文献   

A METHOD OF OPENING LYOPHILE TUBES     

Appleby A 《Science (New York, N.Y.)》1944,99(2560):64

  相似文献   

Comparison between Cloprostenol-induced and Spontaneous Oestrus Fertility in Dairy Cows     

F Cairoli  A Mollo  MC Veronesi  B Renaville  M Faustini  M Battocchio 《Reproduction in domestic animals》2006,41(2):175-179

A short calving to conception interval is of main importance to achieve high economic efficiency in dairy cow industry. In order to reduce this interval, several hormonal treatments have been put on the market, in which cloprostenol, a synthetic analogue of prostaglandin F2alpha (PGF2alpha). The aim of this study was to compare fertility of cloprostenol-induced oestrus to that of spontaneous oestrus in dairy cows. In a group of 525 cows, 280 (treated group) were administered 0.5 mg cloprostenol i.m. after transrectal corpus luteum (CL) detection, and inseminated at detected oestrus during the following week. The other 245 cows (control group) were inseminated during spontaneous oestrus. Whey progesterone concentrations were checked at treatment and at insemination in order to remove from the study cows whose P4 levels indicate a non-functional CL, or a lack of luteolysis respectively. Moreover, cows that were not inseminated due to genital problems were also excluded from this study. Conception (59% vs 54.5%) and calving rates (93.7% vs 93%) were not significantly different between the two groups.  相似文献   

Antibodies to bovine syncytial virus in dairy cattle   总被引：1，自引：0，他引：1  

R C Appleby 《The Veterinary record》1979,105(4):80-81

  相似文献   

Separation anxiety in dogs: The function of homeostasis in its development and treatment     

Appleby D  Pluijmakers J 《Clinical Techniques in Small Animal Practice》2004,19(4):205-215

The model discussed here should help to provide an understanding of the range of stimuli that each dog needs for the maintenance of emotional homeostasis and the interplay between these stimuli and events in the dog’s environment. In turn, this should aid in diagnosis and the setting of appropriate treatment plans.  相似文献   

Effect of an immunomodulatory feed additive on markers of immunity in pasture‐fed dairy cows     

MC Playford  K Dawson  SE Playford  AN Smith  SW Page  K Collins  N Forsberg 《Australian veterinary journal》2014,92(12):479-481

  相似文献   

Changes in Bull Sperm Kinematics after Single Layer Centrifugation     

Y Yulnawati  MC Abraham  D Laskowski  A Johannisson  JM Morrell 《Reproduction in domestic animals》2014,49(6):954-956

The objective of this study was to evaluate bull sperm kinematics after centrifugation through a single layer of a colloid [Single Layer Centrifugation (SLC)]. Ejaculates from 20 bulls were extended and stored at 4–6°C for 24 h during transport to the laboratory for SLC through Androcoll‐B, followed by measurement of sperm kinematics in all samples. Total motility (86% and 88% for uncentrifuged and SLC samples, respectively) and progressive motility (84% for both the groups) were similar (p > 0.05). In contrast, straightness (STR) (0.65 vs 0.69), linearity (LIN) (0.32 vs 0.35) and beat cross frequency (BCF) (22.3 vs 23.6 Hz) were significantly higher in the SLC‐selected samples than in the uncentrifuged samples, whereas velocity of the average path (VAP) (95 vs 90 μm/s), curvilinear velocity (VCL) (192 vs 180 μm/s), amplitude of lateral head deviation (ALH) (7 μm vs 6.5 μm) and hypermotility (49% vs 38%) were significantly decreased. The kinematics of the samples with the poorest motility was improved most by SLC. In conclusion, even though SLC had no direct effect on total and progressive motility, it appeared to have a positive influence on several other kinematic parameters that may be important for fertilization after artificial insemination.  相似文献   

Detection and Characterization of the Cumulene Carbenes H2C5 and H2C6     

MC McCarthy  MJ Travers  A Kovacs  W Chen  SE Novick  CA Gottlieb  P Thaddeus 《Science (New York, N.Y.)》1997,275(5299):518-520

Two cumulene carbenes, H2C5 and H2C6, were detected in a supersonic molecular beam by Fourier transform microwave spectroscopy. Their rotational and leading centrifugal distortion constants were determined with high accuracy, such that the entire radio spectrum can now be calculated. Like the known carbenes H2C3 and H2C4, both molecules have singlet electronic ground states and linear carbon-chain backbones. They can be produced in sufficiently high concentrations in the laboratory that their electronic spectra, expected to lie in the visible, should be readily detectable by laser spectroscopy. The microwave spectra of other, more exotic isomers may be detectable as well.  相似文献