Evaluation of different heating systems for new-born swine
| Autor: | Angélica Signor Mendes, Isadora Bischoff Nunes, Cleverson de Souza, Jéssica Juliane Sulzbach, Marco Antonio Possenti |
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| Rok vydání: | 2018 |
| Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences Swine Health Toxicology and Mutagenesis Weaning Weight Gain 01 natural sciences law.invention Heating 03 medical and health sciences 0302 clinical medicine Animal science law Pregnancy medicine Animals Humans Mean radiant temperature 0105 earth and related environmental sciences 030203 arthritis & rheumatology Incandescent light bulb Ecology Body Weight Temperature Thermal comfort Relative air humidity Animals Newborn Environmental science Female medicine.symptom Weight gain |
| Zdroj: | International journal of biometeorology. 64(9) |
| ISSN: | 1432-1254 |
| Popis: | The use of heating systems for new-born piglets can prevent major losses in the first 5 weeks of life. The present study had the objective of evaluating three heating systems in creeps for new-born piglets, being: floor-heated floor with circulating water (HF), incandescent lamp type SPOT 40 W (L) and incandescent lamp type SPOT 40 W plus black metal plate (LP). The variables evaluated were piglet performance (total weight gain and mortality), bioclimatic data (temperature and relative air humidity), animal behaviour and economic revenue. Bioclimatic data were recorded in the external environment, in the maternity and in the interior of each shelter/creep for 21 days, three times a day, as well as the capture of photographic images for analysis of the animals’ disposal. The mean temperature of the retractors, the weight at weaning and the weight gain were higher in the HF treatment. Treatment HF improved the percentage of dispersed animals and provided the best thermal environment and the highest revenue at the time of the commercialization of the piglets. |
| Databáze: | OpenAIRE |
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