Beijing Huang Laying hens died at 228～245 day old were systemly examined by autopsy and histo pathdogy Results rereal that 9 of these chicken occure reticnloendotheliosi

Olfaction in chemically mediated host seeking and oviposition behavior of mosquitoes;

Effects of oviposition of anopheles stephensi on malaria exflagellation inducing substance in the different organs;

The feeding and oviposition behaviors of Bemisia tabaci (Gennadius) biotype B on five host plants;

Effects of water temperature and photoperiod on maturation and spawn of flounder (\%Paralichthys olivaceus;

Female moth can spawn several times and male moth can mate several.

After artificial enriching nourishment and regulating water temperature and light,the broodstock spawned continually for 27～ 32 d.

Hydrology status on the spawning ground of Acipenser sinensis below the Gezhouba Dam and its relation to the spawning run;

Study on artificial cultivation and spawning technique of fish,Lutjanus erythropterus;

Behaviors of maturation, mating, spawning and fertilization in Penaeus vannamei;

Effect to Egg-laying Caused by Ripeness and Duration of Copulation of Silkworm Moth;

This paper reports the concentration and its variation of unsaturated fatty acid in crude fat and muscles of both males and females Chinese mitten crab during and after the winter, and analysis the relationship between the death?mating?egg-laying?hatching and the concentration of unsaturated fatty acid.