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  1. Grazing and browsing times of goats with three levels of herbage allowance

    Contributor(s):: Orihuela, A., Solano, J. J.

    Three adjacent mixed irrigated pastures of grass (Cenchrus ciliaris) and shrub (Leucaena leucocephala) were used. Grass height was maintained at 27, 14 and 7 cm for treatments I, II and III, respectively, while the height of bushes (6666 plants/ha) were all kept at 150 cm. DM availability was...

  2. Grazing behavior of rangeland beef cows differing in milk production

    Contributor(s):: Lathrop, W. J., Kress, D. D., Havstad, K. M., Doornbos, D. E., Ayers, E. L.

    Differences in grazing behaviour among Hereford (HH), 50% Angus X 50% Hereford (AH), 30% Simmental X 50% Hereford (1S1H) and 75% Simmental X 25% Hereford (3S1H) lactating cows grazing foothill range were measured using vibracorders and pedometers to estimate daily grazing hours and distance...

  3. Grazing behavior responses of rangeland beef cows to winter ambient temperatures and age

    Contributor(s):: Dunn, R. W., Havstad, K. M., Ayers, E. L.

    A trial was conducted on Montana native rangeland to examine the effects of cow age and ambient air temperatures on mid-winter grazing activity of pregnant beef cows. Cows were fitted with vibracorders and pedometers for 50 continuous days in January and February to monitor daily grazing time...

  4. 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...

  5. Grazing distribution and activity of Merino sheep on a saltbrush community in south-east Australia

    Contributor(s):: Squires, V. R.

    Grazing behaviour and movements of a flock of 1000 ewes on 1400 ha of Atriplex vesicaria with a herbaceous layer in which annual forbs and grasses predominated were investigated. Behaviour was consistent between days. Sheep travelled on average of 8 km/day and travel to and from water occupied 7%...

  6. 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)...

  7. Group sizes and resting locations of free range pigs when grazing in a natural environment

    | Contributor(s):: Rodriguez-Estevez, V., Sanchez-Rodriguez, M., Gomez-Castro, A. G., Edwards, S. A.

    A herd of 86 Iberian pigs aged 13+or-0.5 months and with an average live weight of 110+or-1.3 kg at the start of the study was followed to monitor their social organisation (spontaneous group size: GS) and resting preferences when free ranging on natural pastures in a dehesa of evergreen oaks...

  8. Height to withers and abdominal circumference effects on diets of grazing goats

    | Contributor(s):: Mellado, M., Rodriguez, A., Villarreal, J. A., Lopez, R.

    Diet selection in an arid rangeland of northern Mexico by short (height to withers 77 cm) multiparous non-pregnant, non-lactating does and the diets of multiparous non-pregnant, non-lactating does with reduced (101 cm) abdominal circumference is described from microhistological analysis of fecal...

  9. Herding and forage ingestion by sheep

    | Contributor(s):: El-Aich, A., Rittenhouse, L. R.

    A study was conducted in the Middle Atlas Region, Morocco, to investigate the impact of herding on ingestion and distance walked by sheep during spring (Mar.-Apr.), summer (June-July) and autumn (Oct.-Nov.) 1985. Stocking rate was considered to be light. Treatments were free-grazing (FG),...

  10. How degree of selectivity modifies foraging behaviour of dry ewes on reproductive compared to vegetative sward structure

    | Contributor(s):: Prache, S., Roguet, C., Petit, M.

    The effect of sward phenological stage in interaction with the degree of selectivity for green leaves on foraging behaviour of dry ewes was studied in France. The hypothesis that dry matter (DM) intake per bite, intake rate and intake were determined by the amount of preferred food items (green...

  11. How do grazing heifers choose between maturing reproductive and tall or short vegetative swards?

    | Contributor(s):: Ginane, C., Petit, M., D'Hour, P.

    We offered heifers the choice between a tall abundant reproductive sward (RS), evolving from ear emergence to full flowering in the course of the experiment, and a short (8-cm high, treatment S) or tall (14-cm high, treatment T) vegetative sward (VS). This aimed to create a trade-off between...

  12. How do horses appraise humans' actions? A brief note over a practical way to assess stimulus perception

    | Contributor(s):: Baragli, P., Gazzano, A., Martelli, F., Sighieri, C.

    Heart rate (HR) is considered to be an effective tool for assessing animals' emotional response to a stimulus. We investigated changes in HR during a series of handling procedures (grooming test) in horses that had different experiences of human interaction. We used four groups of horses:...

  13. Human behavior influences infectious disease emergence at the human-animal interface

    | Contributor(s):: Alexander, K. A., McNutt, J. W.

    Although human behavior is frequently cited as a factor influencing the emergence of disease at the human-animal interface, few empirical studies have demonstrated this relationship. We compare humans and their domestic animals living in close proximity to populations of the endangered African...

  14. Human-Managed vs. Natural Grazing Systems: Exploring Effects of Livestock and Wildlife Grazing at Multiple Scales

    | Contributor(s):: Megan Esther McSherry

    Grazing by large herbivores is the most prevalent land use on grassland ecosystems, which cover greater than 40% of the earth's land surface and provide critical ecological and economic benefits. As such, understanding how grazing impacts different aspects of the ecosystem is of especially...

  15. 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...

  16. Individualistic herds: individual variation in herbivore foraging behavior and application to rangeland management

    | Contributor(s):: Searle, K. R., Hunt, L. P., Gordon, I. J.

    Rangeland systems cover vast areas of the earth's surface containing great diversity of life, and contribute to the livelihoods and welfare of millions of people. The management of rangeland systems for ecological and commercial outcomes is driven by a need to understand how grazing animals...

  17. Influence of floor type in the walking area of cubicle housing systems on the behaviour of dairy cows

    | Contributor(s):: Haufe, H. C., Gygax, L., Steiner, B., Friedli, K., Stauffacher, M., Wechsler, B.

    The objective of this study was to compare the behaviour of dairy cows in cubicle housing systems with different floor types (mastic asphalt, slatted concrete floor and rubber floor) in the walking area. From a total number of 18 farms, 6 farms each were equipped with one of the given floor...

  18. Influence of stock density and rate and temporal patterns of forage allocation on the diet mixing behavior of sheep grazing sagebrush steppe

    | Contributor(s):: Shaw, R. A., Villalba, J. J., Provenza, F. D.

    An animal's ability to select a diet depends on forage availability, the density of herbivores, and the allocation of forage resources. We hypothesized that the temporal and spatial availability of forages in sagebrush steppe vegetation both influence food selection and may encourage lambs to...

  19. Influence of sward height on diet selection by horses

    | Contributor(s):: Naujeck, A., Hill, J., Gibb, M. J.

    Foraging herbivores are often faced with spatial and temporal heterogeneity within the vegetation they have available to graze and therefore have to make decisions where and when to graze. The study reported in this paper investigated the influence of sward height on diet selection by horses...

  20. Influence of weaning age and an experimental Haemonchus contortus infection on behaviour and growth rates of lambs

    | Contributor(s):: Schichowski, C., Moors, E., Gauly, M.

    Four groups of 20 lambs each, differing in weaning age (6 or 13 weeks) and infection with Haemonchus contortus (infection after weaning or simultaneous to weaning), were observed and compared regarding the behaviour before, during and after these procedures. Furthermore the influence on...