Offering a forage crop at pasture did not adversely affect voluntary cow traffic or milking visits in a pasture-based automatic milking system
| Autor: | Kendra L. Kerrisk, Sergio C. Garcia, V. E. Scott |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Crops
Agricultural 0301 basic medicine Animal feed Forage Poaceae Pasture SF1-1100 Milking Eating 03 medical and health sciences Animal science Fodder forage crop Grazing Animals Lactation automatic milking system Mathematics geography geography.geographical_feature_category Behavior Animal 0402 animal and dairy science food and beverages Automatic milking cow traffic 04 agricultural and veterinary sciences Animal Feed 040201 dairy & animal science Diet incentive Animal culture pasture Dairying Milk 030104 developmental biology Agronomy Turnover Cattle Female Animal Science and Zoology Soybeans |
| Zdroj: | Animal, Vol 10, Iss 3, Pp 500-507 (2016) |
| ISSN: | 1751-7311 |
| Popis: | Feed is a strong incentive for encouraging cows in automatic milking systems (AMS) to voluntarily move around the farm and achieve milkings distributed across the 24 h day. It has been reported that cows show preferences for some forages over others, and it is possible that offering preferred forages may increase cow traffic. A preliminary investigation was conducted to determine the effect of offering a forage crop for grazing on premilking voluntary waiting times in a pasture-based robotic rotary system. Cows were offered one of two treatments (SOYBEAN or GRASS) in a cross-over design. A restricted maximum likelihood procedure was used to model voluntary waiting times. Mean voluntary waiting time was 45.5±6.0 min, with no difference detected between treatments. High and mid-production cows spent 55 min/milking for low-production cows, whereas waiting time increased as queue length increased. Voluntary waiting time was 23% and 80% longer when cows were fetched from the paddock or had a period of forced waiting before volunteering for milking, respectively. The time it took cows to return to the dairy since last exiting was not affected by treatment, with a mean return time of 13.7±0.6 h. Although offering SOYBEAN did not encourage cows to traffic more readily through the premilking yard, the concept of incorporating forage crops in AMS still remains encouraging if the aim is to increase the volume or quantity of home-grown feed rather than improving cow traffic. |
| Databáze: | OpenAIRE |
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