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  1. Conditioned aversion to olive tree leaves ( Olea europaea L.) in goats and sheep

    Contributor(s):: Manuelian, C. L., Albanell, E., Salama, A. A. K., Caja, G.

    With the aim of adverting to olive tree leaves, lithium chloride (LiCl) was used in goats and sheep. A total of 10 dairy does (Murciano-Granadina breed) and 10 dairy ewes (Manchega breed) were used in 2 simultaneous experiments for comparing olive leaf intake in averted vs. control animals. Does...

  2. Designated rooting areas to reduce pasture damage by pregnant sows

    Contributor(s):: Mheen, H. W. van der, Spoolder, H. A. M.

  3. Diet selection in dairy goats grazing woody Mediterranean rangeland

    Contributor(s):: Perevolotsky, A., Landau, S., Kababia, D., Ungar, E. D.

    Species selection, diet quality and voluntary intake were studied in Anglo-Nubian x Damascus dairy goats grazing woody Mediterranean rangeland in the Jerusalem Hills, Israel. Measurements comprised direct observation of grazing behaviour, with the recording of all species encountered along the...

  4. Grazing behaviour of llamas, alpacas and sheep in the Andes of Peru

    Contributor(s):: Pfister, J. A., San Martin, F., Rosales, L., Sisson, D. V., Flores, E., Bryant, F. C.

    Llamas, alpacas and sheep graze jointly in many herds in the Andes. As foraging behaviour may be an important aspect of resource partitioning among camelids and sheep, activity budgets and feeding patterns during one wet and one dry season were quantified. Llamas generally spent more time at each...

  5. Human-related disturbance risk and distance to cover affect use of montane pastures by Pyrenean chamois

    Contributor(s):: Pepin, D., Lamerenx, F., Chadelaud, H., Recarte, J.

    The influence of a hiking trail and the edge of a surrounding beech forest on the diurnal habitat use patterns of the Pyrenean chamois (Rupicapra pyrenaica) was studied within montane pastures of a protected area during a mild winter. Habitat selection significantly increased as the distance from...

  6. Milking frequency and nutritional level affect grazing behaviour of dairy cows: a case study

    | Contributor(s):: O'Driscoll, K., O'Brien, B., Gleeson, D., Boyle, L.

    The aim of this study was to evaluate the effect of milking frequency (MF) at two nutritional levels (NL) on grazing behaviour of dairy cows. Animals (n=48) were randomly assigned to one of four treatments from calving in a 2x2 factorial design for an entire lactation: once (OAD) or twice (TAD)...

  7. Non-destructive assessment of cattle forage selection: a test of skim grazing in fescue grassland

    | Contributor(s):: Moisey, D. M., Bork, E. W., Willms, W. D.

    This study evaluated a non-destructive scientific method that is non-invasive to the animal, for quantifying foraging selectivity by cattle within heterogeneous pasture swards in order to test the utility of a new grazing system designed to aid conservation of native rough fescue (Festuca...

  8. Site use of grazing cattle and sheep in a large-scale pasture landscape: a GPS/GIS assessment

    | Contributor(s):: Putfarken, D., Dengler, J., Lehmann, S., Hardtle, W.

    Year-round mixed-species grazing at low densities in large-scale pasture systems has become a popular conservation concept as it is assumed to maintain the valuable biodiversity of semi-open cultural landscapes. This study aims to elucidate which vegetation types are preferentially grazed by...

  9. The effect of forage supplementation, herbage height and season on the ingestive behaviour of dairy cows

    | Contributor(s):: Phillips, C. J. C., Hecheimi, K.

    In 2 experiments, in the early (May-July) and the late (Aug.-Oct.) part of the grazing season, the effect of offering 1st and 3rd cut silages to Friesian dairy cows continuously grazed at 4 or 8 cm herbage height was investigated. There were no effects of silage type on ingestive behaviour....

  10. Bonding of sheep to cattle as an effective technique for predation control

    | Contributor(s):: Hulet, C. V., Anderson, D. M., Smith, N. N., Shupe, W. L.

    Nine lambs that had been bonded to cattle were placed with 7 heifers in pastures frequented by coyotes (Canis latrans) to determine whether multi-species grazing with bonded lambs would reduce predation. Unbonded lambs were grazed alone in a nearby pasture. Bonded lambs with cattle and unbonded...

  11. Differences in home range and habitat use among individuals in a cattle herd

    | Contributor(s):: Howery, L. D., Provenza, F. D., Banner, R. E., Scott, C. B.

    A field study was conducted on the Maxfield-Thompson Grazing Allotment in the Sawtooth National Forest, Idaho, to investigate the differences in home range (HR) and habitat use (HU) of individual cows (that use certain areas (e.g. riparian grasslands) more than others (e.g. upland grasslands))...

  12. Effect of breed, season and pasture moisture gradient on foraging behaviour in cattle on semi-natural grasslands

    | Contributor(s):: Hessle, A., Rutter, M., Wallin, K.

    The objectives of this study were to determine the effects of breed, season and pasture moisture gradient on the extent and location of grazing and ruminating behaviour in cattle kept on heterogeneous semi-natural grasslands. Two groups of heifers, 12 of the traditional Swedish breed Vaneko and...

  13. Effect of low densities of senescent stems in crested wheatgrass on plant selection and utilization by beef cattle

    | Contributor(s):: Ganskopp, D., Angell, R., Rose, J.

    In field experiments carried out at Burns, Oregon in 1990 on a 19-year-old pasture of Agropyron desertorum mixed with Artemisia tridentata subsp. wyomingensis, tussocks were augmented with 1, 2 or 3 cured post-reproductive stems/dmsuperscript 2 basal area; 2 cows grazed for 6 d. In one plot...

  14. Foraging behaviour of donkeys grazing in a coastal dune area in temperate climate conditions

    | Contributor(s):: Lamoot, I., Callebaut, J., Demeulenaere, E., Vandenberghe, C., Hoffmann, M.

    A small herd of donkeys was introduced in a coastal dune reserve 'Houtsaegerduinen' (ca. 80 ha) in Belgium, in order to slow down expansion of dominant grass and shrub species. The Houtsaegerduinen is a nutrient poor scrub-dominated dune system with a spatially heterogeneous vegetation pattern....

  15. Grazing behaviour by heifers on pastures fertilized with different fertilizer categories

    | Contributor(s):: Gjestang, K. E., Tjernshaugen, O., Tveitnes, S.

    In Norway the grazing behaviour of 12 Norwegian Red heifers was examined on fields fertilized with different types of fertilizer, viz. normal slurry (A), aerobic treated slurry and NPK-fertilizer. Thirty tons of manure per hectare were used for the manure-fertilized fields and 0.6 ton for the...

  16. Grazing, social and comfort behaviour of Ankole and crossbred (Ankole x Holstein) heifers on pasture in south western Uganda

    | Contributor(s):: Huber, R., Baumung, R., Wurzinger, M., Semambo, D., Mwai, O., Winckler, C.

    The aim of this study was to assess the grazing, social and comfort behaviour of the indigenous purebred Ankole cattle breed and crossbred (Holstein x Ankole) animals under typical management conditions in south western Uganda. Twelve focal animals in each of four groups (two groups per genotype)...

  17. Mechanisms of handling time and intake rate of a large mammalian grazer

    | Contributor(s):: Laca, E. A., Ungar, E. D., Demment, M. W.

    The effects of sward structure and bite weight (W) on bite rate in cattle were examined to explain the behavioural components of handling time. Three oesophageally fistulated steers grazed homogeneous, hand-constructed swards of Paspalum dilatatum or Medicago sativa, in a sward area of about 0.36...

  18. Patch choice by cattle grazing tropical grass swards: a preliminary study

    | Contributor(s):: Hirata, M., Kanemaru, E., Tobisa, M.

    Relatively little information is available on patch choice by ungulates grazing tropical grass swards despite extensive works on temperate grass swards. The present study tested various vegetation variables as a reward to cattle grazing patchy tropical grass swards. The study comprised three...

  19. Sample size determinations for studying selected cattle foraging behaviors

    | Contributor(s):: Havstad, K. M., Olson-Rutz, K. M.

    During a winter grazing season 16 range beef cows, 5 years old, were used to estimate daily grazing time (DGT) and faecal output (percentage of body weight, FOBW) for 46 consecutive days. Estimates of components of variability associated with cows, days, and theoretical treatment effects were...

  20. Social and environmental factors influence cattle distribution on rangeland

    | Contributor(s):: Howery, L. D., Provenza, F. D., Banner, R. E., Scott, C. B.

    The distribution patterns of cattle dams (and foster dams) and their offspring while grazing a 1030-ha (about 3 km by 5 km) allotment was studied during the summers of 1990-1993 in Idaho, USA. The primary objective in this 4-year field study was to determine whether yearling and adult offspring...