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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 36 (1981), S. 0 
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A description is given of equipment designed to be fitted to either sheep or cattle, and to record automatically information on the jaw movements associated with both grazing and ruminating, movements of the head in plucking mouthfuls of herbage, and the time spent in grazing. The equipment has been successfully tested against alternative visual and mechanical methods of measuring grazing behaviour.The use of modified equipment in detailed studies has shown (a) that the maximum acceleration of the head in a longitudinal plane when plucking mouthfuls of herbage was twice as great in sheep as in cattle and in the sheep, but not in the cow, increased as sward height decreased; and (b) that the ratio of jaw movements to head movements was always greater than unity in both sheep and cattle, and was greater on tall than on short swards in two out of three comparisons. The rate of biting was significantly lower on tall than on short swards.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 14 (1976), S. 665-670 
    ISSN: 1741-0444
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire On décrit un appareil d'échantillonage et de mesure d'urine des brebis en páturage. Cet appareil qui pèse 2,8 Kg et qui est disposé de façon égale de part et d'autre des brebis, mesure le volume d'urine excrétée en 24 heures et prélève un échantillon qu'on peut varier de 1 à 10% du volume total. Les résultats d'expérimentation ont montré que la cathétérisation de la vessie et la fixation de l'appareil n'avaient pas d'effet sur le volume d'urine journalier ni la composition, que les volumes d'urine estimés au moyen de l'appareil variaient entre 98,5 et 104, 3% des volumes observés, et que l'échantillon prélevé par l'appareil était représentatif, du point de vue de la composition, du volume quotidien d'urine. On a vu que l'appareil fonctionnait d'une manière satisfaisante aussi bien avec des brebis parquées qu'avec des brebis en pâturage.
    Abstract: Zusammenfassung Es wird ein Gerät für die Probenahme und Messung von Urin (UMASE) bei grasenden weiblichen Schafen beschrieben. Das 2,8 kg wiegende Gerät, das gleichmäßig an jeder Seite des Schafs verteilt wird, mißt das innerhalb von 24 Stunden abgegebene Urinvolumen und sammelt eine Probe, die zwischen 1 und 10% des Gesamtvolumens liegen kann. Die Ergebnisse der Experimente zeigten daß sich die Katheterisierung der Blase und das Anbringen des UMASE nicht auf das tägliche Urinvolumen oder die Urinzusammensetzung auswirken, daß die durch das UMASE geschätzten Urinvolumen zwischen 98,5 und 104, 3% der beobachteten Volumen schwankten und daß die mit dem UMASE entnommene Probe in der Zusammensetzung für den insgesamt täglich abgegebenen Urin repräsentativ ist. Das Gerät wurde zufriedenstellend an Schafen im Pferch und auf der Wiede eingesetzt.
    Notes: Abstract Urinary measuring and sampling equipment (u.m.a.s.e.) suitable for use with grazing female sheep is described. The equipment, which weighs 2·8 kg and is equally distributed on either side of the sheep, measures the volume of urine excreted per 24 h and collects a sample which can be varied from 1 to 10% of the total output. The results of experiments showed that catheterisation of the bladder and attachment of u.m.a.s.e. did not affect daily urine volume or composition, that urine volumes estimated from u.m.a.s.e. varied between 98·5 and 104·3% of observed volumes, and that the sample collected by u.m.a.s.e. was compositionally representative of the total daily urine output. The equipment has been shown to work satisfactorily with both penned and grazing sheep.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 20 (1982), S. 775-778 
    ISSN: 1741-0444
    Keywords: Pulsed voltage ; Sheep ; Urine measurement ; Urine sampling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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