It is proved that the treatment with white mulch and black thin films per- formed the best in terms of heat preservation in cultivation of strawberry with shelves. In winter, drip irrigation performed significantly in...It is proved that the treatment with white mulch and black thin films per- formed the best in terms of heat preservation in cultivation of strawberry with shelves. In winter, drip irrigation performed significantly in transporting hot water through solar energy. The combination of the two methods resolved the issue of heat preservation difficulty and guaranteed growth of strawberry in winter.展开更多
Objective:To evaluate effect of tris-extender supplemented with various concentrations of strawberry (Fragaria spp.) on bull semen preservability.Methods: Pooled bull semen were extended with tris-citrate-fructose egg...Objective:To evaluate effect of tris-extender supplemented with various concentrations of strawberry (Fragaria spp.) on bull semen preservability.Methods: Pooled bull semen were extended with tris-citrate-fructose egg yolk diluent (control, 0% strawberry) and various concentrations of tris strawberry (TSB) (1%-6%) to achieve 60 million motile spermatozoa per milliliter. Extended semen were subjected to semen freezing protocol. Semen assessment including motility, alive%, abnormality%, intact sperm membrane (hypo-osmotic swelling test) and conception rate were carried out for both chilled and frozen semen. Results: Results showed that sperm motility after chilling was enhanced in groups treated with various concentrations of TSB from 1% to 5% and exhibited higher significance (P<0.0001) at 6-day post-chilling. In frozen semen, 3%, 4%, 5% and 6% concentrations gave the best significance (P<0.0001) on sperm motility in comparison with the control. Concentration 1% revealed the highest significance (P<0.0001) on alive% as compared to the control. Hypo-osmotic swelling test was maintained as the control. Concentration 3% gave the lowest significance (P<0.0001) considering abnormality%. The conception rate upon using frozen semen in insemination showed higher conception rate in concentrations of 5% and 6% in cattle.Conclusions: It is concluded that 1%-5% concentrations of TSB ameliorate bull semen characteristics after chilling, and 3%-6% concentrations of TSB improve bull semen characteristics after freezing. Higher conception rate exists in 5% and 6% concentration of TSB.展开更多
基金Supported by Zhenjiang Science&Technology Pillar Program(NY2013001)~~
文摘It is proved that the treatment with white mulch and black thin films per- formed the best in terms of heat preservation in cultivation of strawberry with shelves. In winter, drip irrigation performed significantly in transporting hot water through solar energy. The combination of the two methods resolved the issue of heat preservation difficulty and guaranteed growth of strawberry in winter.
文摘Objective:To evaluate effect of tris-extender supplemented with various concentrations of strawberry (Fragaria spp.) on bull semen preservability.Methods: Pooled bull semen were extended with tris-citrate-fructose egg yolk diluent (control, 0% strawberry) and various concentrations of tris strawberry (TSB) (1%-6%) to achieve 60 million motile spermatozoa per milliliter. Extended semen were subjected to semen freezing protocol. Semen assessment including motility, alive%, abnormality%, intact sperm membrane (hypo-osmotic swelling test) and conception rate were carried out for both chilled and frozen semen. Results: Results showed that sperm motility after chilling was enhanced in groups treated with various concentrations of TSB from 1% to 5% and exhibited higher significance (P<0.0001) at 6-day post-chilling. In frozen semen, 3%, 4%, 5% and 6% concentrations gave the best significance (P<0.0001) on sperm motility in comparison with the control. Concentration 1% revealed the highest significance (P<0.0001) on alive% as compared to the control. Hypo-osmotic swelling test was maintained as the control. Concentration 3% gave the lowest significance (P<0.0001) considering abnormality%. The conception rate upon using frozen semen in insemination showed higher conception rate in concentrations of 5% and 6% in cattle.Conclusions: It is concluded that 1%-5% concentrations of TSB ameliorate bull semen characteristics after chilling, and 3%-6% concentrations of TSB improve bull semen characteristics after freezing. Higher conception rate exists in 5% and 6% concentration of TSB.
