排序方式： 共有9条查询结果，搜索用时 15 毫秒
1
1.
The aqueous extract of Calotropis procera was evaluated for its spasmolytic effect using in vitro trachea smooth muscle chain of Guinea-pig. The extract (50, 100 and 200 microg/ml) showed a dose-dependent relaxant activity probably exhibited through the direct relaxant action on the smooth muscle. 相似文献
2.
Branton SL Leigh SA Roush WB Purswell JL Olanrewaju HA Collier SD 《Avian diseases》2008,52(2):291-296
Numerous methods are currently used throughout the poultry industry for the administration of vaccines. Each utilizes water for vaccine reconstitution and/or administration, including two of the three commercially available live Mycoplasma gallisepticum (MG) vaccines. Selected water temperatures were used to reconstitute and/or dilute the three commercially available live MG vaccines. Water temperatures included 4 C, 22 C (room temperature), and 32 C, and titer (color change units) was recorded at four time intervals, at point of reconstitution (time 0), 15, 30, and 60 min postreconstitution of the vaccines (time periods 15, 30, and 60, respectively). Results for F strain MG (FMG) vaccine showed significant decreases in titer from time 0 to time 15 for the 22 C and 32 C water temperatures but no significant decrease for any time period for FMG reconstituted with 4 C water. For 6/85 strain MG no significant difference in titer was noted for any of four time periods within any of the three water temperatures. For ts-11 strain MG a significant decrease was observed in titer at each of the four postdilution time periods when diluted with 32 C water. There was no significant decrease in titer at any time period for ts-11 MG vaccine when diluted with either 4 C or 22 C water. 相似文献
3.
4.
Critical factors influencing farmers’ use of traditional communication methods (TCMs) in information dissemination were isolated with a factor analytical technique. The results show that most of the farmers were between 31 and 60 years and the majority (63%) employ use of TCMs such as proverbs, hooting, putting leaves on path, and use of palm fronds to deliver information at a moderate level. The features of TCMs, farmers’ personal characteristics, economic proficiency, and influence of social contact were factors influencing use of TCMs. It was concluded that use of TCMs is influenced by their peculiarities in discerning information and the user's personal and socioeconomic characteristics. 相似文献
5.
Odutayo Olusola Joshua Sogunle Olajide Mark Adeyemi Olajide Ayorinde Sonibare Adekayode Olanrewaju 《Tropical animal health and production》2020,52(5):2349-2357
Tropical Animal Health and Production - The demand for animal protein in Nigeria is so high that introduction of new management techniques to improve poultry production is relevant. This study... 相似文献
6.
Physiological and haematological indices suggest superior heat tolerance of white-coloured West African Dwarf sheep in the hot humid tropics 总被引：1，自引：1，他引：0
Adelodun O. Fadare Sunday O. Peters Abdulmojeed Yakubu Adekayode O. Sonibare Matthew A. Adeleke Michael O. Ozoje Ikhide G. Imumorin 《Tropical animal health and production》2012,45(1):157-165
Coat colour contributes to physiological adaptation in mammals and mediates response to thermal stress. Twenty-four adult West African Dwarf sheep of both sexes and with different coat colour types were used in this study. We measured rectal temperature (RT), respiratory rate (RR) and pulse rate (PR) before sunrise and sunset during the late dry season (January–March) and early rainy season (April–June) as well as packed cell volume (PCV), red blood cell (RBC) count, white blood cell (WBC) count, plasma sodium (Na+) and potassium (K+). Animals with black coat colour had the highest (P?<?0.05) mean values of 38.92?±?0.03 °C, 65.09?±?1.06 breaths/min, 81.35?±?0.78 beats/min, 1.70?±?0.01 for RT, RR, PR and heat stress index (HSI), respectively, followed by brown mouflon and brown with extensive white, while the Badger Face coloured sheep had the least mean values. There were significant (P?<?0.05) differences between male and female sheep for RT, RR, PR and HSI. Season had a significant (P?<?0.05) effect on RT, RR, PR and HSI. Coat colour and sex also significantly (P?<?0.01) affected RBC, WBC, Na+ and K+. Seasonal variation (P?<?0.05) in all the blood parameters was observed, with the exception of PCV. Interaction effect of coat colour and sex was significant (P?<?0.05) on RT and HSI. Correlation coefficients among the measured traits ranged from positive to negative values. These results indicate that selection of white-coloured sheep to attenuate heat stress is desirable in the hot humid tropics. 相似文献
7.
Branton SL Leigh SA Purswell JL Evans JD Collier SD Olanrewaju HA Pharr GT 《Avian diseases》2010,54(3):1108-1111
Vaccination of multi-age layer operations, wherein one million plus commercial layer chickens are housed, has been spurious until the development of a self-propelled, constant-speed spray vaccinator. Still, even with its use, live Mycoplasma gallisepticum (MG) vaccinations have been questionable in terms of seroconversion. Using the vaccinator as a research tool over the past 5 yr, factors have been elucidated which impact seroconversion to one live MG vaccine in particular, the F strain of MG (FMG). These factors include the type of nozzle used to spray the vaccine, the temperature of the water used to rehydrate and administer the vaccine, and the pH and osmolarity of the fluid used to apply the vaccine. In the present study, one farm was monitored for its seroconversion rates over 4 1/2 yr, during which time the FMG vaccination protocol was amended as factors were identified that enhanced seroconversion rates. The results of this study showed that implementation and inclusion of the optimized factors into the vaccination protocol for FMG enhanced seroconversion rates because they went from an initial 50%-55% positive seroconversion rate to a consistent 100% positive seroconversion rate over the 56-mo study period. 相似文献
8.
9.
Toyin B. Olowoboko Olanrewaju O. Olujimi Oluwatoyin A. Babalola 《Communications in Soil Science and Plant Analysis》2018,49(12):1442-1454
To promote the use of animal waste in agriculture and prevent environmental pollution, an alternative product from the waste should be appraised. This necessitated the study to characterize animal manure ashes and determine its effect on soil pH and electrical conductivity (EC) dynamics. Dried manures of cattle, goat, and poultry, their ashes, and nitrogen (N)–phosphorus?–potassium were applied to soil at 120 kg N ha?1.? Soils collected fortnightly were analyzed for pH and EC. Results indicated that nutrients in manure ashes were comparable to that of dried manures. Changes in pH and EC were not predictable, application of manure ash increased pH by 12% and 13%, 23% and 14%, 20% and 3% while EC increased by 616% and 109%, 1274% and 156%, 2992% and 458%, relative to dried manures and control during incubation, screenhouse, and field experiments, respectively. It was concluded that incorporation of manure ashes increased soil pH and EC although dynamics were unpredictable. 相似文献
1