Behaviour, Hygiene, and Lameness of Dairy Cows in a Compost Barn During Cold Seasons in a Subtropical Climate
| Autor: | Piotr Herbut, Edgar de Souza Vismara, Jaqueline Agnes Pilatti, Lucélia Fátima dos Santos, Frederico Márcio Corrêa Vieira |
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| Rok vydání: | 2021 |
| Předmět: |
0303 health sciences
Compost media_common.quotation_subject 0402 animal and dairy science Humid subtropical climate 04 agricultural and veterinary sciences Biology engineering.material 040201 dairy & animal science 03 medical and health sciences Animal science Hygiene Lameness engineering Barn (unit) 030304 developmental biology media_common |
| Zdroj: | Annals of Animal Science. 21:1555-1569 |
| ISSN: | 2300-8733 |
| DOI: | 10.2478/aoas-2021-0033 |
| Popis: | This study aimed to assess the thermal environment, behaviour, hygiene, and lameness in dairy cows with different numbers of lactations housed in a compost-bedded pack barn system in a humid subtropical climate during autumn and winter. Between April and July 2016, behavioural and microclimatic environment assessments were conducted in a compost barn system, and hygiene and lameness assessments were performed. Crossbred cows in lactation (n = 10) were divided into two groups according to the number of lactations: primiparous and multiparous. Air temperature, relative humidity, and air ventilation speed were measured at 09:00, 12:00, and 15:00. The cows’ hygiene and lameness were evaluated using subjective scores ranging from 1 to 4 and 1 to 5, respectively. The daytime behaviour assessment was performed as sampling 0/1, using the focal method. Primiparous cows showed a greater probability of walking (P |
| Databáze: | OpenAIRE |
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