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101.
Studies were conducted to examine the possibility of preserving slaughterhouse‐derived buffalo ovaries at 4°C for 0 (control), 12 and 24 h to maintain the developmental competence of the oocytes (experiment 1), to assess the effect of incubation temperature during oocyte maturation on rates of in vitro maturation (IVM) and in vitro fertilization (IVF) of buffalo oocytes and embryo development (experiment 2), and to examine the effect of storage at 25°C for 0 (control), 4 and 8 h of frozen–thawed buffalo sperm and BO and H‐TALP as sperm processing and fertilization media on cleavage and embryo development in vitro of buffalo oocytes (experiment 3) in order to optimize the IVF technology in buffalo. Results suggested that storage of ovaries at 4°C for 12 or 24 h significantly (p < 0.05) reduced the developmental potential of oocytes. Incubation temperatures during the IVM influenced the fertilization rate but had no significant effect on maturation and subsequent embryo development. The incubation temperature of 38.5°C during IVM was found to be optimum for embryo production in vitro. Storage of frozen–thawed sperm at 25°C for 8 h significantly (p < 0.05) decreased its ability to cleave the oocytes. Sperm processed in BO medium had significantly (p < 0.05) higher ability to cleave the oocytes than the H‐TALP medium. 相似文献
102.
103.
I Mikaelian P Labelle M Doré D Martineau 《Journal of veterinary diagnostic investigation》2000,12(4):371-374
Fibroleiomyomas of the tubular genitalia were diagnosed in 6 of 9 adult female beluga whales from the St. Lawrence estuary, Quebec, Canada. These tumors were located in the vagina (6 of 6), the cervix (2 of 6), and the uterus (1 of 6). Endogenous hormones or xeno-estrogens may be implicated in the occurrence of these tumors. 相似文献
104.
F Hill PB Stark RT Stebbins ER Anderson HM Antia TM Brown TL Duvall DA Haber JW Harvey DH Hathaway R Howe RP Hubbard HP Jones JR Kennedy SG Korzennik AG Kosovichev JW Leibacher KG Libbrecht JA Pintar EJ Rhodes J Schou MJ Thompson S Tomczyk CG Toner R Toussaint WE Williams 《Science (New York, N.Y.)》1996,272(5266):1292-1296
The Global Oscillation Network Group (GONG) project estimates the frequencies, amplitudes, and linewidths of more than 250,000 acoustic resonances of the sun from data sets lasting 36 days. The frequency resolution of a single data set is 0.321 microhertz. For frequencies averaged over the azimuthal order m, the median formal error is 0.044 microhertz, and the associated median fractional error is 1.6 x 10(-5). For a 3-year data set, the fractional error is expected to be 3 x 10(-6). The GONG m-averaged frequency measurements differ from other helioseismic data sets by 0.03 to 0.08 microhertz. The differences arise from a combination of systematic errors, random errors, and possible changes in solar structure. 相似文献
105.
Topography and differential growth of the nasal ventral concha (os conchae nasalis ventralis) of the pig from birth to six weeks of age 总被引:1,自引:0,他引:1
To study the growth of nasal ventral concha (os conchae nasalis ventralis) of pigs between birth and 6 weeks of age, 7 undecalcified 80-micron thick nasal cross sections between the 3rd incisor and the 3rd premolar teeth were examined by microradiography and fluorescence microscopy, after labeling with tetracycline and alizarine red S. Conchal growth was particularly rapid in the pigs during the first 2 weeks of life. From the 3rd week, growth of the nasal ventral concha became slower. For a given age, the slow growing zone spread in the rostrocaudal direction. The transversely directed growth of the nasal ventral concha resulted in the optimal filling of the nasal cavities. 相似文献
106.
N. HAILAT SQ LAFI A. AL-DARRAJI HM EL-MAGHRABY F. AL-ANI M. FATHALLA 《Australian veterinary journal》1997,75(4):257-259
Two anasarcous foetuses of Awassi sheep are described. The foetuses were removed from the dams by caesarean section because of dystocia due to failure of cervical dilation. Uterine incision was made in situ because uteri were so distended they could not be brought out from the site of incision. Large quantities of uterine fluids and abnormal thick placentas were found. One foetus weighed about 7 kg and the other 13 kg. The foetal heads were deformed: the upper jaw was prognathic and the left ear of the small foetus was cystic. Necropsy revealed subcutaneous musculature was soft and flabby and abdominal and thoracic cavities contained serosanguinous fluid. Histopathological examination revealed that only the larger foetus had focal aggregates of basophilic nucleated red blood cells and scattered megakaryocytes in the liver. We conclude that anasarca can occur in Awassi sheep, with and without associated extramedullary haematopoiesis. 相似文献
107.
Chronic ulcers of the skin were observed in three Belgian Landrace sows. Lesions were located on ears, limbs, and in the mammary region and were resistant to treatment that included corticosteroid therapy. Major histologic changes were located at the dermo-epidermal junction. Ulcers were deep, and the adjacent epidermis had marked hyperkeratosis, acanthosis, and intracellular edema. Dermatitis was prominent, essentially located in the superficial dermis. By electron microscopy, basal lamina appeared disrupted. Dermo-epidermal separation occurred beneath the basal lamina. Collagen was morphologically normal. Desmosomes, hemidesmosomes, and anchorage fibers were present in areas adjacent to lesions. Ulcerative dermatitis of sows is morphologically similar to pemphigus, pemphigoid, systemic lupus erythematosus, epidermolysis bullosa simplex, erythema multiforme, toxic epidermal necrolysis, and drug eruption. However, significant differences exist between ulcerative dermatitis and these conditions. 相似文献
108.
Control of Sarcoptes scabiei Infestation with Ivermectin in a Large Intensive Breeding Piggery 总被引:3,自引:1,他引:2
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Martineau GP Vaillancourt J Fréchette JL 《The Canadian veterinary journal. La revue veterinaire canadienne》1984,25(6):235-238
Ivermectin given in a single subcutaneous dose of 300 μg/kg was tested for safety and efficacy against swine hyperkeratotic scabies in a large breeding piggery. Approximately 15% of the adult population was showing severe clinical mange. Skin scrapings were taken from 40 affected animals to provide parasite counts. Eight of 40 animals were used as untreated controls; all test animals were injected subcutaneously on day 0 with Ivermectin. General improvement was noted as early as eight days after treatment. Scratching stopped by day 21 in all treated animals. The results are discussed in regard to a control program for Sarcoptes scabiei infestation in pigs. 相似文献
109.
Plourde V Martineau R Harvey D 《The Canadian veterinary journal. La revue veterinaire canadienne》1984,25(1):12-13
A twelve month old, noncycling Holstein-Friesian heifer, was examined because of abnormal udder development. Rectal palpation revealed a tense right uterine horn. A solid mass in the right abdomen was detected by ballottement. A granulosa cell tumor of the right ovary was removed and nine months later the animal conceived. 相似文献
110.