Variations of temperature and relative humidity in the rearing silkworm€™s room

Authors

  • Antonio da Silveira Fonseca Instituto de Zootecnia, Posto Experimental de Limeira, SP
  • Benedicto do Espírito Santo de Campos Instituto de Zootecnia, Divisão Técnica Básica e Auxiliar, Seção de Estatística e Técnica Experimental, Nova Odessa, SP

Abstract

The present work was carried out in the Posto Experimental de Limeira, State of São Paulo. The objective was to verify the temperature and relative humidity variations in the room of silkworm rearing during the hours of the day, when the larvae remain more active and when the influence of these climatic factors is higher. The temperature and humidity data were obtained in the silkworm rearing room, from the termometre and higrometre, up in middle of the room at the height of 1.50m, The observation of the temperature and humidity was carried out hour per hour from seven o€™clock A.M. to six o€™clock P.M., all days of the months of October, November, December and January of the sericultural year 1975/76. The analysis of the results showed that: 1) the temperature and humidity variations were great during the studied period; 2) The highest temperature was observed between 01:53P.M. and 2:53P.M.; 3) The lowest humidity was obtained in the same period between 3:51P.M. and 4:54P.M.; 4) The critic period to the silkworm rearing with the maximum of temperature and minimum of relative humidity was verified between 1:53 P.M. and 4:54 P.M.; 5) The inflexion points of the temperature and relative humidity curves demonstrated high and inverse correspondence avoided to observe that the highest temperature corresponded to a little antecipation to the lowest relative humidity percentages.

Downloads

Download data is not yet available.

Published

2014-01-29

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Variations of temperature and relative humidity in the rearing silkworm€™s room. (2014). Bulletin of Animal Husbandry, 34(1), 149-153. http://35.198.24.243/index.php/bia/article/view/253

Most read articles by the same author(s)

1 2 3 4 5 > >>