Vitamins trace minerals

Thus the requirement for the use of man-made drugs and dietary additives as veterinary medicines for the treatment of farmed animals is considerable and worth about 100 million pounds sterling annually in the UK ( 104 million in 1994j io jjjg investment in dietary additives such as vitamins, trace minerals, coccidiostats, pigmenters, enzymes and other probiotics to feed compounders in the UK is worth about 110 million, assuming an addition rate of 2.5 kg per tonne and a cost of approximately 3% of the total concentrate dietary cost (calculated from MAFF data, 1995). ° These data can be increased by a factor of about 10 when the compound feed produced within Europe is considered. 

Sehnert KW, Claque AFCheraskin E.The improvement in renal function following EDTA chelation and multi-vitamin-trace mineral therapy a study In creatinine clearance. Med Hypoth 1984 15 301-304. 

We know that for many chemicals (vitamins, trace minerals, hormones, amino acids, electrolytes, etc.) there are optimal levels in the body which are required for normal function. Too little is injurious to health, as is too much. Any diabetic is only too aware of the delicate balance of insulin required to maintain health. Too little sodium in the body interferes with the transmission of nerve impulses hypertensive patients know the consequence of too much sodium. Many other examples are well described in the medical literature. 

Because of the simplicity of swiae and poultry feeds, most feed manufacturers add vitamins (qv) and trace minerals to ensure an adequate supply of essential nutrients. Amino acids (qv) such as methionine [7005-18-7] lysiae [56-87-17, threonine [36676-50-3] and tryptophan [6912-86-3], produced by chemical synthesis or by fermentation (qv), are used to fortify swiae and poultry diets. The use of these supplements to provide the essential amino acids permits diets with lower total cmde proteia coateat. 

Littie research is available regarding the amounts of vitamins and minerals needed by young mminants. However, it is common to supply calcium, phosphoms, trace-mineralized salt, and vitamins A, D, and E (4). In the absence of a functional mmen, B-vitamins and vitamin K should be... 

The Sugars Task Force s Select Committee on Nutrition and Human Needs recommended a daily consumption of sugars at 10% of total calories, which approximates current (11%) daily intake levels in the United States. At this level, sucrose does contribute to the development of dental caries however, no firm evidence exists that it causes dietary imbalances or deficiencies of vitamins (qv), minerals, or trace nutrients (62). 

Brewers and bakers dried yeasts are used as dietary supplements. They contribute some protein and trace minerals, and some B vitamins, but no vitamin C, vitamin B 2 or fat-soluble vitamins. The glucose tolerance factor (GTE) of yeast, chromium nicotinate, mediates the effect of insulin. It seems to be important for older persons who caimot synthesize GTE from inorganic dietary chromium. The ceU wall fraction of bakers yeast reduces cholesterol levels in rats fed a hypercholesteremic diet. 

Natural products have been noted for their potential health benefits from time immemorial and are the basis of Ayurveda, an ancient Indian medical practice (Bushkin and Bushkin, 2002). However, the potential benefits of several natural products reside in one or two active ingredients. For example green tea stands for polyphenols, soy for soy estrogens, broccoli for isothiocyanates and grape seed for polyphenols. The beauty of rice bran is that there are more than 100 antioxidants, several categories of bioactive phytonutrients, such as IP6, polyphenols, phytosterols, tocotrienols, y-oryzanol, B vitamins, minerals and trace minerals in addition to fat, protein, fiber, polysaccharides and other nutrients. These phytonutrients and antioxidants of rice bran are believed to act at the cellular level, and their synergestic function is responsible for the positive health benefits. 

Soy proteins are used extensively in meat and meat products by the military, the school lunch program and consumers to save money. Their ultimate acceptability is equally dependent upon the nutritional, chemical, sensory and shelf life changes which occur when they are added. Soy proteins in meat products such as ground beef inhibit rancidity, improve tenderness, increase moisture retention, decrease cooking shrink, fat dispersion during cooking and have no important effect on microbiological condition. Concomittantly, inordinate amounts of added soy protein may cause the meat product to be too soft, exhibit an undesirable flavor and may lead to a decreased PER and a deficiency in B-vitamins and trace minerals. In emulsified meat products, soy protein effectively binds water but does not emulsify fat as well as salt soluble muscle protein. Prudent incorporation of plant proteins can result in an improvement of the quality of the meat product with inconsequential adverse effects. 

Nutritional factors may influence the toxicity of pesticides. Research in this area has primarily focused on the role of dietary proteins, particularly sulfur-containing amino acids, trace minerals, and vitamins A, C, D, and E. Studies in rats show that inadequate dietary protein enhances the toxicity of most pesticides but decreases, or fails to affect, the toxicity of a few. The results of these studies have shown that at one-seventh or less normal dietary protein, the hepatic toxicity of heptachlor is diminished as evidenced by fewer enzyme changes (Boyd 1969 Shakman 1974). The lower-protein diets may decrease metabolism of heptachlor to heptachlor epoxide. 

Ca not only works in conjunction with vitamin D to enhance bone health, its effects on bone maintenance have been surmised to be enhanced in postmenopausal women by the presence of other minerals. A 2-year double-blind, placebo-controlled trial evaluated the effect of supplementary Ca (1000 mg elemental Ca/day as CCM) on lumbar spine bone loss in the presence and absence of a combination of trace minerals integral to bone maintenance (i.e., copper, 2.5 mg/day manganese, 5.0 mg/day zinc, 15.0mg/day). Participants included 59 healthy postmenopausal women of mean age ( SD) 66 + 7 years who were on average 18.1 8.9-year postmenopausal (Strause et al, 1994). At baseline, the mean Ca... 

The animals basic nutritional requirements must be met, with regard to the levels of minerals and vitamins, to ensure their health and welfare. In some countries, supplementation with vitamins, trace elements and minerals is not a routine practice, whether certified organic or not. Another aspect of the interaction between animal health and nutrition regarding worm control is feeding with bioactive forages, which, for example Hoste et al. (2004) and Thamsborg et al (2005) describe, based on an EU-funded project WORMCOPS. 

There is a danger of creating new imbalances by careless use of supplements of vitamins and trace minerals, hormones and drugs. Examples of interaction between trace elements and vitamins include the following vitamin C (ascorbic acid) enhances the biological availability of iron, de-... 

An enzyme cofactor can be either an inorganic ion (usually a metal cation) or a small organic molecule called a coenzyme. In fact, the requirement of many enzymes for metal-ion cofactors is the main reason behind our dietary need for trace minerals. Iron, zinc, copper, manganese, molybdenum, cobalt, nickel, and selenium are all essential trace elements that function as enzyme cofactors. A large number of different organic molecules also serve as coenzymes. Often, although not always, the coenzyme is a vitamin. Thiamine (vitamin Bj), for example, is a coenzyme required in the metabolism of carbohydrates. 

The primary roles and the recommended daily intake of major and trace minerals are listed in Table 38-3. Similar to vitamins, these minerals are typically obtained from dietary sources. Specific minerals may likewise be included in various multivitamins and other dietary supplements, with the intent that these minerals will promote good health and prevent disease. Again, there is generally no need for mineral supplements for most people eating a reasonably balanced diet. On the other hand, mineral supplements can be helpful in specific situations where the body s need for a mineral may exceed dietary supply. Some examples of appropriate supplementation include calcium supplements for people with osteoporosis (see Chapter 31), potassium supplements for people on diuretics (see Chapter 21), and iron supplements for people with certain anemias. Hence, mineral supplements may be helpful in certain individuals, but the dose and type of supplement should be adjusted carefully. 

Wheat germ is the embryo of wheat berry. It is a good source of coenzyme Q10, vitamin E, choline, most of the B vitamins, the minerals calcium, magnesium, phophorus, and several trace elements. This chapter provides information only on coenzyme Q10, which is useful in the treatment of the pleiotropic manifestation of the following diseases ... 

Health of the stock may be compromised because of the restrictions on treatments for disease outbreaks. Also a strict adherence to a policy of no synthetic feed supplements is likely to lead to instances of vitamin and trace mineral deficiencies. Reliance on forage and sunlight to provide all of the required vitamins and minerals is not supported by scientific evidence. 

Gross necropsy lesions of a selenium deficiency are identical to those of a vitamin E deficiency (NRC, 1994) and include exudative diathesis and myopathy of the gizzard. Paleness and dystrophy of the skeletal muscles (white muscle disease) are also common. The incidence and degree of selenium deficiency may be increased by environmental stress. Selenium is generally included in trace mineral premixes. Common sources for supplementation of poultry diets are sodium selenite and sodium selenate. Selenium yeast is also used in conventional diets. 

Inal, F., Coskun, B., Giilsen, N. and Kurtoglu, V (2001) The effects of withdrawal of vitamin and trace mineral supplements from layer diets on egg yield and trace mineral composition. British Poultry Science 42, 77-80. 

Patel, K.P., Edwards, H.M. and Baker, D.H. (1997) Removal of vitamin and trace mineral supplements from broiler finisher diets. Journal of Applied Poultry Research 6, 191-198. 

Soybean meal is generally low in minerals and vitamins (except choline and folic acid). About two-thirds of the P in soybeans is bound as phytate and is mostly unavailable to animals. This compound also chelates mineral elements including Ca, magnesium, potassium, iron and zinc, rendering them unavailable to poultry. Therefore, it is important that diets based on soybean meal contain adequate amounts of these trace minerals. Another approach to the phytate problem is to add phytase, a phytic acid degrading enzyme, to the feed to release phytin-bound P. A benefit of this approach is that less P needs to be added to the diet, reducing excess P loading into the environment. 

Feed peas, like cereal grains, are low in Ca but contain a slightly higher level of P (about 4g/kg). They contain about 12g/kg phytate, similar to that in soybeans (Reddy et al., 1982). The levels of trace minerals and vitamins in peas are similar to those found in cereal grains. 

Table 5.13. NRC (1994) estimated vitamin and trace mineral requirements of growing and laying chickens, amount/kg diet (90% moisture basis).

Do not feed vitamins or trace minerals in a separate feeder. Use the supplement as a source of these nutrients. If vitamins or trace minerals are placed in a separate feeder, some birds may not eat them because they do not like the taste while other birds may overconsume them and suffer toxic side effects. 

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