| Titles |
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English :
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Status of some minerals in Friesian calves fed different levels of concentrate feed mixture and corn silage
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| Abstract |
Minerals are essential for the proper functioning of the animal. The animal may have sufficient body stores of the mineral to withstand a short period on a mineral deficient diet. Also, the efficiency of extraction or utilization of the deficient mineral may improve when the mineral is in short supply in the food (Malmberg et al., 2003). Corn silage alone is not a balanced diet. Therefore, consideration must be given to adding essential nutrients. Minerals, such as calcium, phosphorus, common salt, zinc, manganese and cobalt should be provided in a supplement minerals may be provided in a protein of the diet or by feeding in a box on a free choice basis (perry and Cecava, 1995).
Since mineral analyses are complicated and expensive, it is important to select and analyze the minimum number of animal tissues, which are more indicative of the mineral status. Tissues used to evaluate the status of specific minerals include liver, blood, bone, milk, hair and saliva (McDowell et al., 1986). Minerals level in hair can reflect the condition and/or activity of the elements in other parts of the body and reflect minerals status to be as a tool, useful to nutritionists (Anke, 1966 and Combs, 1987). Blood is more widely employed for studies in mineral nutrition than any other tissue or fluid because it invariably in some aspects of its composition the mineral status of the animals. The normal values or normal range of minerals concentrations in the blood of healthy farm animals are known (Underwood, 1981). Minerals concentrations in blood plasma have been studied as an adjunct to investigations of minerals metabolism or quantitative dietary minerals requirements (McDowell, 1992). Determining the elemental concentration in cattle tissues is especially important because these materials are used for multipurpose objectives such as the assessment of animal health, the quality of human foods consumed and as a potential environmental biomonitor (Avelar et al., 2002). The chemical composition of body tissues is a better reflection of the dietary status of domestic animals (Webb et al., 2001).
The objective of this study was to investigate the effect of feeding different levels of concentrate feed mixture and com silage on some minerals intake, metabolism and concentrations in hair, blood plasma and body tissues of growing Friesian calves.
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| Publication year |
2009
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| Pages |
392-399
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| serial title |
Proceeding 15th International Silage Conference July 27-29, 2009 Madison Wisconsin
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Calcium.
Calves.
Cobalt.
Common salt.
Concentrates.
Feeds.
Manganese.
Minerals.
Phosphorus.
Zinc.
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| Proposed Agrovoc |
corn silage;
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| Publication Type |
Conference/Workshop
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