Sward structural resistance and biting effort in grazing ruminants
نویسندگان
چکیده
منابع مشابه
Toxicity of Crepis lacera in grazing ruminants
BACKGROUND Crepis lacera is a plant from the Asteraceae family that is common in the Mediterranean region. Farmers believe that this plant may be deadly to small ruminants in areas of southern Italy. However, scientific evidence is lacking, and no proof exists that C. lacera is toxic to ruminants. Necropsies conducted on four sheep revealed lesions in their livers and kidneys. RESULTS In the ...
متن کاملPredicting Forage Intake by Grazing Ruminants
Determination of the amount eaten and characteristics of the diet of grazing ruminants remains one of the most difficult tasks in research. While several lifetimes have been devoted to developing techniques to ‘measure’ intake and diet quality, they are laborious, expensive, and often lack both precision and accuracy. Hence, there has been little effort on the part of producers or consultants t...
متن کاملRecent Advances in Copper and Selenium Supplementation of Grazing Ruminants
Procedures for providing supplementary copper and selenium were classified into methods which involve direct application to pasture, free access methods, drenches, parenteral injections and slow release techniques; the advantages and disadvantages of each are examined with emphasis on procedures which have recently become available. A major problem is the subclinical deficiency which is often t...
متن کاملNutritional Problems Affecting Calcium and Magnesium Metabolism in Grazing Ruminants
Complex disorders arise when the calcium and magnesium requirements of ruminants are not met during pregnancy and lactation. Hypocalcaemia and hpagnesemia occur when the losses of Ca and Mg in milk cannot be supplied from the diet or mobilized from body reserves. Older cows and ewes, which canrvot mobilize enough minerals from bone or body fluids, are particularly susceptible when there is redu...
متن کاملDelivery method and supplement consumption by grazing ruminants: a review.
The effectiveness of supplementation programs is affected by the ability to reduce intake variation and to meet target supplement consumption. A review was made of factors affecting variation in individual animal consumption of supplement by grazing cattle and sheep, including supplement type and feeding method, animal dominance and social interactions, and forage availability. The effects of p...
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ژورنال
عنوان ژورنال: Animal Research
سال: 2003
ISSN: 1627-3583,1627-3591
DOI: 10.1051/animres:2003012