EFFECTS of HEAT STRESS on PRODUCTIVE CAPACITY at ROSS 308 FEMALE PARENTS
Autor: | Monica Parvu, Ioana Cristina Andronie, Violeta Elena Simion, Adriana Amfim |
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Jazyk: | angličtina |
Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Scientific Papers Animal Science and Biotechnologies, Vol 46, Iss 1, Pp 341-343 (2013) |
ISSN: | 2344-4576 1841-9364 |
Popis: | It was studied the effect of heat stress on productive capacity at ROSS 308 female parents exposed to temperatures of 32-37°C during the day. The hens were reared on the floor, in intensive system. The experimental period was of 3 weeks. The following parameters were monitored: The following parameters were monitored: egg production, egg weight, egg mass, feed intake, specific number of incubated eggs. The egg production, intake and incubated eggs were recorded daily; egg weight and egg shell thickness weekly. The productive parameters were significantly influenced by exposure to warm temperature (p≤0.05). It was observed a significant decrease in egg production and feed consumption and a high percentage of cracked eggs, which can not be utilized for incubation. The number of incubated eggs was reduced by 37%. |
Databáze: | OpenAIRE |
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