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  1. Spectral analysis of bovine grazing behavior on Neotyphodium coenophialum infested tall fescue

    Contributor(s):: Seman, D. H., Stuedemann, J. A., Anderson, J. E.

    Bovines spend less time grazing and have reduced intake when grazing endophyte-infected (E+), N. coenophialum vs. endophyte-free (E-) tall fescue (Festuca arundinacea). Because bovine grazing behaviour follows a series of repeatable cycles, cyclic grazing behaviour was studied using spectral...

  2. The effect of a total solar eclipse on the grazing behaviour of dairy cattle

    Contributor(s):: Rutter, S. M., Tainton, V., Champion, R. A., Grice, P. le

    Studies of the grazing behaviour of ruminants show that there is a recurrent daily pattern of grazing behaviour. Various researchers have hypothesised that this pattern is controlled by daylight, but this theory is difficult to test with grazing animals under field conditions. The total solar...

  3. The effect of breed and housing system on dairy cow feeding and lying behaviour

    | Contributor(s):: O'Driscoll, K., Boyle, L., Hanlon, A.

    In Ireland there is growing interest in managing dairy cows on out-wintering pads (OWPs) during the winter, as a low cost alternative to housing indoors. This study investigated feeding and lying behaviour of two breeds of dairy cow (Holstein-Friesian and Norwegian Red) at pasture (PAS) and in...

  4. The effect of introducing timothy, cocksfoot and red fescue into a perennial ryegrass sward and the application of sodium fertilizer on the behaviour of male and female cattle

    | Contributor(s):: Phillips, C. J. C., Youssef, M. Y. I., Chiy, P. C.

    The effects on cattle grazing behaviour of introducing the 3 new species into a perennial ryegrass pasture were examined in a Latin Square design. Eight castrated male and 8 female cattle of similar age were grazed on plots of perennial ryegrass only (treatment 1), perennial ryegrass and timothy...

  5. The effects of sodium and potassium fertilizers on the grazing behaviour of dairy cows

    | Contributor(s):: Phillips, C. J. C., Waita, J. M., Arney, D. R., Chiy, P. C.

    32 lactating cows were allocated to pairs that were similar in calving date, mild yield and composition. Within pairs, cows were allocated at random to either pasture that received sodium fertilizer or a control treatment where the pasture had no sodium fertilizer. Tall pasture and low stocking...

  6. The imprints created by cattle grazing short sequences of bites on continuous alfalfa swards

    | Contributor(s):: Ungar, E. D., Griffiths, W. M.

    Grazing by cattle on the scale of a single feeding station was studied to determine the patterns of defoliation and bite dimensions in short bite sequences. The sward was a continuous and homogeneous expanse of alfalfa without any imposed patchiness of structure. Treatments were bite sequences of...

  7. The number of farm mates influences social and maintenance behaviours of Japanese black cows in a communal pasture

    | Contributor(s):: Takeda, K., Sato, S., Sugawara, K.

    A study was performed to investigate optimal group size in cattle in communal pastures where cattle from various farms are turned out: (i) to ascertain if cows derived from each farm form an affiliative group and (ii) to investigate the effect of the number of farm mates on social and maintenance...

  8. The use of differentially corrected global positioning system to monitor activities of cattle at pasture

    | Contributor(s):: Schlecht, E., Hulsebusch, C., Mahler, F., Becker, K.

    Global positioning system (GPS) technology is increasingly applied in livestock science to monitor pasture use and tracking routes, and is often combined with equipment for monitoring animal activity. As GPS data are referenced in time and space, it is hypothesised that parameters derived there...

  9. Use of a tri-axial accelerometer for automated recording and classification of goats' grazing behaviour

    | Contributor(s):: Moreau, M., Siebert, S., Buerkert, A., Schlecht, E.

    The suitability of an inexpensive tri-axial accelerometer for the automated recording of goats' activities at pasture was tested on a slightly undulating pasture in Central Germany (52 h of registry) and on a rugged mountainous pasture in northern Oman (70 h of registry). The logger was either...

  10. Voluntary automatic milking in combination with grazing of dairy cows. Milking frequency and effects on behaviour

    | Contributor(s):: Ketelaar-de Lauwere, C. C., Ipema, A. H., Ouwerkerk, E. N. J. van, Hendriks, M. M. W. B., Metz, J. H. M., Noordhuizen, J. P. T. M., Schouten, W. G. P.

    Grazing was combined with a fully automatic milking system (AMS) for a group of 24 crossbred Holstein cows. It was assumed that the cows would visit the AMS voluntarily. Zero grazing (G0) was compared with restricted grazing (cows could spend up to 12 h outdoors daily; G12) and unrestricted...

  11. A brief note about cow lying behaviour - do cows choose left and right lying side equally?

    | Contributor(s):: Forsberg, A. M., Pettersson, G., Ljungberg, T., Svennersten-Sjaunja, K.

    The factors influencing cows' lying behaviour are not fully evaluated. Most studies dealing with lying behaviour were primarily aimed at comparing different designs for the resting area and floor surfaces, while only a few studies have investigated the cows' preference of lying side. The aim of...

  12. An automatic system to monitor lying, standing and walking behaviour of grazing animals

    | Contributor(s):: Champion, R. A., Rutter, S. M., Penning, P. D.

    Sensors incorporating mercury tilt switches were used to measure the lying, standing and walking behaviour of grazing cattle and sheep. The lying/standing sensor was suspended below the animal, whilst the walking sensor was fitted to the shin of the animal's foreleg. Both switches gave a...

  13. Behavioural patterns of heifers under intensive and extensive continuous grazing on species-rich pasture in the Czech Republic

    | Contributor(s):: Hejcmanova, P., Stejskalova, M., Pavlu, V., Hejcman, M.

    This study examines the effects of season and of two grazing intensities, namely extensive grazing (EG) and intensive grazing (IG), on the grazing behaviour of heifers on species-rich upland pasture in the Czech Republic. Ten or eight (IG), and six or four (EG) heifers were continuously stocked...

  14. Cattle grazing behavior with season-long free-choice access to four forage types

    | Contributor(s):: Fehmi, J. S., Karn, J. F., Ries, R. E., Hendrickson, J. R., Hanson, J. D.

    This experiment investigated how season-long, free-choice grazing affected weekly cattle grazing behaviour and resource use. Our objectives were to determine if known forage preferences change through the season, if feedbacks from previous grazing intensity affect current use, and if resources...

  15. Cattle use visual cues to track food locations

    | Contributor(s):: Howery, L. D., Bailey, D. W., Ruyle, G. B., Renken, W. J.

    This study tested the hypothesis that cattle aided by visual cues would be more efficient than uncued animals in locating and consuming foods placed in either fixed or variable locations within a 0.64-ha experimental pasture. Eight yearling steers were randomly selected and trained to associate...

  16. Conditioned aversion in sheep induced by Baccharis coridifolia

    | Contributor(s):: Almeida, M. B. de, Schild, A. L., Brasil, N. D. A., Quevedo, P. de S., Fiss, L., Pfister, J. A., Riet-Correa, F.

    In Southern Brazil, Uruguay, Argentina, and Paraguay, the invasive weed Baccharis coridifolia often poisons naive animals. Farmers prevent B. coridifolia poisoning using several unconventional methods to reduce ingestion: (1) burning plant material under an animals' nose, and having the animal...

  17. Does sward height affect feeding patch choice and voluntary intake in horses?

    | Contributor(s):: Edouard, N., Fleurance, G., Dumont, B., Baumont, R., Duncan, P.

    The numbers of horses grazing at pasture are increasing in developed countries, so a proper understanding of their feeding selectivity and of the tactics they use for extracting nutrients from swards is essential for the management of horses and grasslands. Resource acquisition in herbivores can...

  18. Effects of mixed-species stocking and space allowance on the behaviour and growth of red deer hinds and ewes at pasture

    | Contributor(s):: Blanc, F., Theriez, M., Brelurut, A.

    A study was conducted to test whether the effects of space allowance on social interactions, activity patterns and growth rates of hinds reared at pasture in single-species groups, were modified by mixing them with ewes. 30 red deer hinds (10 months old) from the same breeding group and 30 ewes...

  19. Effects of social learning on foraging behaviour and live weight gain in first-season grazing calves

    | Contributor(s):: Hessle, A. K.

    When livestock are turned out to semi-natural grasslands, an effective onset of grazing is important both for animal productivity and for defoliation of the sward, which preserve the biodiversity of the vegetation. The aim of this study was to investigate whether foraging behaviour of naive...

  20. Foraging behaviour of growing pigs on grassland in relation to stocking rate and feed crude protein level

    | Contributor(s):: Andresen, N., Redbo, I.

    The foraging behaviour of pigs was studied with the aim of using this as a resource in a cropping system. Twenty Landrace x Yorkshire x Hampshire growing pigs, divided into 4 groups, were observed for 3 weeks during the summer of 1995 at Ekhaga Research Farm, east of Uppsala. The pigs had an...