发酵床技术能将猪养殖过程与排泄物的无污染处理有机结合,从源头实现了养殖污染的减量化、无害化、资源化,不仅改善了养殖环境,增进了猪只健康和畜产品安全,而且不占用土地来处理猪只排泄物,消除了二次污染,提高了养殖效益。

[Objective] This study aimed to find out a method for low-cost and highly efficient sheep superovulation treatment and artificial insemination. [Method] The factors those probably influencing the results of conventional superovulation and insemination, such as combination of FSH hormone and sponge suppository, estrus interval, number of insemination, and ram individuals were analyzed. [Result] The combination of sponge suppository and FSH produced in Beijing exhibited the poorest effect to superovulation, significantly worse than that of other combinations (P<0.01). The FSH produced in Ningbo, combined with sponge suppository or CIDR produced better effect to superovulation. The superovulation effect was better when the interval from the last FSH injection to estrus was 12 h, significantly better than that when the interval was 36 h (P<0.01); and there was no difference in the superovulation results when the interval was 0, 12 and 24 h. The pregnancy rate of two artificial inseminations was significantly higher than that of only one insemination (P<0.01). Rams themselves had significant influence on fertilization results. [Conclusion] The combination of domestic FSH and domestic sponge suppository cost much less and dose not reduce the superovulation results. Better fertilization result can be obtained if the ewes are inseminated twice with the sperm those gave high pregnancy rate.

2005—2006年小麦生长季,利用7个强筋品种,按统一设计方案分别在7个省进行田间试验,研究灌水在不同生态环境下对籽粒产量和蛋白质含量及其稳定性的调控效应。结果表明,在小麦生育期平均降水量低于常年的情况下,各试验点的平均产量以灌3次水（灌水时期分别为春2叶露尖、春5叶露尖和开花期,每次灌水量均为600m3hm-2）的处理最高,显著高于灌2次水（灌水时期为春5叶露尖和开花期,每次灌水量均为600m3hm-2）和灌1次水（灌水时期为春5叶露尖期,灌水量为600m3hm-2）的处理,但与灌4次水（灌水时期分别为春2叶露尖、春5叶露尖、开花期和灌浆期,每次灌水量均为600m3hm-2）的处理差异不显著。随着灌水次数和灌水量的增加,各试验点总体呈现产量提高和试验点间差异缩小的趋势,产量环境指数越低的试验点,灌水处理的增产效果越好。说明灌水可使不同生态环境下强筋小麦产量的稳定性增强。平均产量越高的品种,在各试验点间的产量变异越小,即稳定性越好;产量的环境指数越高,品种间产量变异系数越小。不同灌水处理的籽粒蛋白质含量差异显著,随灌水次数增加,平均蛋白质含量有逐渐降低的趋势,但在降水过少的河北任丘试验点,增加灌水使蛋白质含量有所提高。同一品种在不同试验点的蛋白质含量有较大变化。在各试验点间变异系数小的品种,其蛋白质含量静态稳定性较好;而变异系数大的品种则对生态环境变化有较大反应,说明其品质的栽培可塑性较强。

Zhongren 1,a winter cultivar,cultivating with randomized block design with two factors,was used to study the effects of basic seedling and nitrogen application strategies on grain yield and protein components.The results showed that the plant height,spike length,grain yield,thousand-grain weight and test weight were significant difference among the treatments. The spike length and the number of grains per spike were positively correlated(r=0.931**).The spike length,spike kernels and the thousand-grain weight were reduced with the increase of the number of basic seedling,and they were significant difference among the treatments.It was the trend that the test weight was increased with the increase of the number of basic seedling.The grain yield was higher when the number of basic seedling was 450×10~4/hm~2.But there was no significant difference in the grain yield between the number of basic seedling 300×10~4/hm~2 and 375×10~4/hm~2,so the number of basic seedling could be 300×10~4～450×10~4/hm~2 in slightly late sowing date,according to actual sowing date and soil fertility.They were different in the response of the protein components to basic seedling,the Albumin and Globulin content were lower when the basic seedling was fewer,but the Glutelin and total protein content were higher.The Albumin,Globulin and Gliadin content were not significant difference among the treatments of the ratio of base to topdressing nitrogen application.The Glutelin and total protein contents were significant difference among the treatments of the ratio of base to topdressing nitrogen application,and it was the highest of the treatment of the ratio 3:7.There was of a trend that the total protein content was increased with the ratio of topdressing nitrogen application increase.