The development of germ cells of peanut worms, Sipunculus nudus, proceeding with seasonal alternating was observed by optical microscope to study reproductive cycle of the population in the sea of Guangxi.
通过观察体腔生殖细胞发育的季节变化,研究广西海区方格星虫繁殖周期。
The reproductive cycle of marine bivalves is closely related to cycles of nutrient storage and use and to environmental factors such as water temperature and food availability.
海洋贝类的繁殖周期与营养物质储存、利用和环境因子(如海水温度、食物可得性、盐度等)密切相关。
The reproductive cycle of the razor clam Sinonovacula constricta(Lamark) from the Yellow River Delta in Shandong Province was studied from April 2007 to March 2008 in relation to environmental conditions.
自2007年4月~2008年3月对山东省黄河三角洲缢蛏的繁殖周期及其与环境因子(温度、盐度和叶绿素a含量)的关系进行了研究。
Through herding observation on the spot of the lucky nature reserve in the Inner Mongol picture, have studied the big bustard s domain behavior in breeding period.
通过在内蒙古图牧吉自然保护区的实地观察,研究了大鸨在繁殖期的领域行为。
It carried out observation for the territorial behaviour of Black-browed Reed Warbler in breeding period (incubation and feeding nestling),from May to July,1987 at Duling Forestry Centre, Huangnihe Forestry Bureau, Dunhua City, Jilin Province.
1987年5~7月在吉林省敦化市黄泥河林业局都陵林场,对黑眉苇莺繁殖期(孵卵与育雏期)的领域性行为进行了观察。
Diurnal time-activity budgets of Grus nigricollis for the pre-laying phase in northern Tibet;
藏北黑颈鹤繁殖前期的昼间活动时间分配
The survey on the population density in breeding season of Himalayan snowcock Tetraogallus himalayensis was conducted with total number count and line-transect census methods in Dongdashan and Yanchiwan Nature Reserve,Gansu Province,from April to July,2004 and 2005.
2004年和2005年的4~7月,采用绝对数量调查与样线调查相结合的方法,分别对甘肃省东大山自然保护区和盐池湾自然保护区的高山雪鸡繁殖期种群密度进行了调查研究。
Characteristics of calls of Parus monticolus,including preserving territory,warning call,gathering call,alarming call,guarding call and young bird feeding call were studied with computer analysis during the breeding season in Pingshan County of Sichuan Laojunshan Nature Reserve by spectrographic analysis from April to June,2005.
2005年4~6月,在四川屏山县老君山自然保护区采用计算机声谱分析技术,对绿背山雀繁殖期护域、警告、报警、警戒和幼雏乞食的鸣声进行了初步研究。
From 1997 to 1998, the spatial pattern and its variations in this species in winter and breeding seasons, as well as its relation to habitat structure, were studied in Wulushan Nature Reserve of Shanxi Province, Ch.
1997~ 1998年在山西省五鹿山自然保护区内对世界珍禽褐马鸡 (Crossoptilonmantchuricum)越冬期与繁殖期的空间分布模式及其变化规律进行了研究 ,同时探讨了种群空间分布模式与栖息地结构特征之间的关系。
Lactation is the final phase of the reproductive cycle of mammals.
泌乳是哺乳动物繁殖周期的最后阶段。
Studies on Reproductive Cycle and the Physiological Function of Reproductive Endocrine in Carassius Auratus Red Variety;
红鲫繁殖周期与内分泌生理功能研究
It is well established that how sows are fed in one phase of the reproductive cycle will affect productivity during subsequent phases.
众所周知,母猪在繁殖周期的某一阶段的饲喂策略将影响下一个阶段的生产性能。
Length of Effective Buds and Subculture Cycle of Bud Micro-propagation in Eucalyptus
桉树微芽繁殖有效芽长度与继代周期的选择
The objective of our study was to study the macromorphology of the reproductive organs through laparoscopy implemented during the anoestral season and in the stages of the sexual cycle through the breeding season.
研究目标是通过在非繁殖季节和繁殖季节的发情周期内利用腹腔镜研究生殖器官的宏观形态。
(of animals that have several estrous cycles in one breeding season) in a period of sexual inactivity.
(指在一个繁殖期有几个发情周期的动物)不动情期。
Time effect on the predator-prey Cycle in application of water bug for mosquito control.
时间对水螨捕食周期的影响及其在控制蚊繁殖螨的作用
Effect of Photoperiod on Carcass, Reproduction Morphology, Hormone and Biochemical Parameters Changes;
不同光照周期对蛋鸡胴体、繁殖性状及血液激素和生化指标的影响
An interval of sexual inactivity between two periods of estrus in mammals that breed cyclically.
非求偶期,不动情期周期繁殖的哺乳动物在两个求偶期之间的不动情期
The Relationship between the Parental Care and Reproductive Success of the Falco Tinnunculus during the Breeding Period;
红隼繁殖期的双亲投入与繁殖成功的关系
the periodic passage from one region to another for feeding or breeding.
为哺育或繁殖而周期性的从一个地区或一种气候移往另一个地区或另一种气候的活动。
The scientific study of periodic biological phenomena, such as flowering, breeding, and migration, in relation to climatic conditions.
物候学,物候现象研究与气候条件有关的周期性生物现象的科学,如开花、繁殖和迁移
Siraitia Grosvenorii Plantlets Grown Photoautotrophically in Response to Light Intensity and Photoperiod
无糖培养微繁殖条件下不同的光照强度和光周期对罗汉果试管苗的影响
Studies on the Endocrine Cells of Adenohypophysis during Reproduction and Non-reproduction Period in Mullet and Crucian;
繁殖期与非繁殖期乌鳢、鲫鱼腺垂体内分泌细胞的研究
Anatomical and Histological Studies of the Male Reproductive System of Centropus sinensis in Breeding Season
褐翅鸦鹃繁殖期雄性生殖系统的组织解剖观察
The Intraspecific and Interspecific Relationships of Common Kestrel (Falco Tinnunculus) during the Breeding Period
红隼繁殖期种内关系和种间关系研究
The Time Budget of Different Behaviors of Common Crane in Breeding Season in Captivity
笼养灰鹤繁殖期行为时间分配的研究
The Bilogy of Ontogeny and Fecundity of Chouioia Cunea Yang
白蛾周氏啮小蜂个体发育及繁殖生物学的研究
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