Behavior of high producing holstein-friesian cows during the three months of lactation

Autor:	Ioan Bencsik, Alena Bencsik, Jana Stanculet, Nicolae Pacala, T. Theilen
Rok vydání:	2004
Předmět:	medicine.anatomical_structure Animal science Silage Applied Mathematics General Mathematics Lactation medicine Hay food and beverages Biology Milk production Free stall Milking
Zdroj:	Biotehnologija u stocarstvu. 20:1-4
ISSN:	2217-7140 1450-9156
DOI:	10.2298/bah0404001b
Popis:	In our study the behavior of dairy cows was studied during the first three months of lactation. The experiments were done on 25 cows raised in free-stalls on slatted floor in 25.5-31.5 m 2 boxes. In the experimental period the cows were fed grass, silage and hay. The concentrates were used for feeding during the milking time and the quantity depended on milk production of each cow. The dairy cows were monitored every 10 minutes in 24 hours period for several days. We have observed that the primiparous and secundiparous cows are resting 1-2 hours less than the older cows. The time needed to ingest the forages is longer at primiparous and secundiparous. During 24 hours, cows are spending 12-14 hours on rest, so it is necessary to build comfortable and spacious pens. Cows are spending 5-6 hours on feeding, so we must provide a larger feeding area for each cow.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5f0d688d4f8a3b29089dbdbc391d8c22 https://doi.org/10.2298/bah0404001b Zobrazit plný text záznamu