The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
This study was run to evaluate the physiological response and expression of hepatic and brain Hsp70, of 20 Naked neck (Na/na) and Hubbard-Petersen broiler chicks (2 to 5 days of age), exposed or not to 36-37°C. The trial was conducted during four days and the birds were exposed to high temperature during 5 hours. Liver and brain tissue samples were collected at the end of the stress period and analyzed for Western Blotting for determination of Hsp70 level. No association between body weight loss and the other variables were observed. Increasing the variation in cloacal temperature resulted in an increase in Hsp70 hepatic and brain tissue levels. Results indicate that brain Hsp70 levels were correlated with variation in cloacal temperature, concerning the chicks subjected to heat stress, but it can not be stated that it is an indicative of thermotolerance by the birds.
Physiologic Response Associated to Thermotolerance in Broiler Chickens of Two Strains for Exposure to High Temperature
Dionello,Nelson José Laurino and Macari,Marcos and Ferro,Jesus Aparecido and Rutz,Fernando and Ferro,Maria Inês Tiraboschi and Furlan,Luiz Roberto. Physiologic Response Associated to Thermotolerance in Broiler Chickens of Two Strains for Exposure to High Temperature. R. Bras. Zootec. [online]. 2002, vol.31, 1, [cited 2026-04-24], pp.79-85. Available from: <https://rbz.org.br/article/physiologic-response-associated-to-thermotolerance-in-broiler-chickens-of-two-strains-for-exposure-to-high-temperature/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35982002000100009.
Dionello,Nelson José Laurino; Macari,Marcos; Ferro,Jesus Aparecido; Rutz,Fernando; Ferro,Maria Inês Tiraboschi; Furlan,Luiz Roberto. Physiologic Response Associated to Thermotolerance in Broiler Chickens of Two Strains for Exposure to High Temperature. R. Bras. Zootec., v.31, 1, p. 79-85. Feb. 2002. Available from: <https://rbz.org.br/article/physiologic-response-associated-to-thermotolerance-in-broiler-chickens-of-two-strains-for-exposure-to-high-temperature/>. acess on 24 Apr. 2026. https://doi.org/10.1590/S1516-35982002000100009.
Dionello,Nelson José Laurino, & Macari,Marcos, & Ferro,Jesus Aparecido, & Rutz,Fernando, & Ferro,Maria Inês Tiraboschi, & Furlan,Luiz Roberto. (2002). Physiologic Response Associated to Thermotolerance in Broiler Chickens of Two Strains for Exposure to High Temperature. R. Bras. Zootec., 31(1) , 79-85. https://doi.org/10.1590/S1516-35982002000100009.
DionelloNelson José Laurino, MacariMarcos, FerroJesus Aparecido, RutzFernando, FerroMaria Inês Tiraboschi, FurlanLuiz Roberto. Physiologic Response Associated to Thermotolerance in Broiler Chickens of Two Strains for Exposure to High Temperature. R. Bras. Zootec. [Internet]. 2002 Feb [cited 2026 Apr 24]; 31(1): 79-85. Available from: https://rbz.org.br/article/physiologic-response-associated-to-thermotolerance-in-broiler-chickens-of-two-strains-for-exposure-to-high-temperature/. https://doi.org/10.1590/S1516-35982002000100009.
Figure 6
Differential abundance for the species Faecalibacterium prausnitzii (A) and Megamonas funiformis (B).
