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Selection for early responsiveness of chicks to Escherichia coli and Newcastle disease virus.
The immune response of the EH line developed earlier than that in the EL line as shown by fewer nonresponders against E. coli and the higher response of this line against the two antigens at young ages. Expand
Effect of a New Phenoxy Juvenile Hormone Analog on California Red Scale (Homoptera: Diaspididae), Florida Wax Scale (Homoptera: Coccidae) and the Ectoparasite Aphytis holoxanthus DeBache
The toxicity of the juvenile hormone analog (JHA) 2-[1-methyl-2-(4-phenoxyphenoxy) ethoxy] pyridine (MPEP), was evaluated on California red scale, Aonidiella aurantii, Ceroplastes floridensis Comstock, and the ectoparasite Aphytis holoxanthus DeBach. Expand
Familial differences in antibody response of broiler chickens to vaccination with attenuated and inactivated Newcastle disease virus vaccine.
It is concluded that selection for response to NDV based on inactivated virus may be most effective in improving response to attenuated NDV vaccinations. Expand
Genetic and phenotypic correlations between immune response to Escherichia coli and to Newcastle disease virus vaccines.
The data provide evidence for the presence of significant genetic variation in immune response with respect to two endemic disease antigens, but they provide no evidence for a genetic correlation in response to the two antigen. Expand
Immune response to Newcastle disease virus vaccine, fowl-pox vaccine, and Escherichia coli vaccine in Bedouin and White Leghorn chickens.
Rate of development of titer to Escherichia coli from day 1 to day 4, however, was significantly more rapid in Bedouin chicks than in the purebred Leghorn or the reciprocal crosses. Expand
Effect of 3 insect growth regulators on larval development, fecundity and egg viability of the coccinelidChilocorus bipustulatus [Col.: Coccinelidae]
The effect of 3 insect growth regulators — methoprene, diflubenzuron and RO 13-5223, on the coccinelid Chilocorus bipustulatus L. was studied in the laboratory and revealed the following. Expand
Day-old vaccination with live-in-oil vaccines: Newcastle disease (ND) and infectious bursal disease (IBD) in chicks and ND in turkey poults.
One-day-old broiler chicks, vaccinated with live ND and infectious bursal disease vaccine (IBD) incorporated in killed-in-oil combined ND + IBD vaccine, showed better protection against challenge with IBDV and higher antibody levels to NDV as compared to vaccination with killed- in-oil vaccine alone. Expand
Effect of the Insect Growth Regulators Diflubenzuron and Methoprene on Scale Insects
Larval stages of 2 diaspids, Chrysomphalus aonidum (L.) and Aonidiella aurantii (Maskell), and 2 coccids, Saissetia oleae (Olivier) and Ceroplastes floridensis Comstock, were sprayed with the insectExpand
Spermagglutination and Spermadsorption due to Myxoviruses
It was observed that spermatozoa adsorbed to cells which were producing virus in vitro; this was called “spermadsorption” and this communication describes these two phenomena as well as the conditions under which they occurred. Expand