jaaah, daar heb 'k me ook wel n's overheen gebogen...:
ze krijgen hier als supplement 1 x in de week vit B-complex, en daarnaast regelmatig krekels (bevatten: koper, zink, magnesium, ijzer, b-1, b-2 en nogal wat vezels) en 2 x in de week wat vette vis,
'k vinnut moeilijk te beoordelen, of dit werkelijk wat 'doet' , 't schijnt wèl zo te zijn, dat met een aantal vezels (of dit nou van haar of gras of anders is) de colon mooier schoon zou worden, en dus minder slechte bacteriën zouden blijven hangen...maar 'k heb geen bewijs helaas, daarnaast denk ik dat 't dichter bij een natuurlijk menu komt...
http://www.barfplaats.nl/forum/index.ph ... 053.0.html
Nutritional deficiencies and excesses both can have detrimental effects; however, genetic defects in some animals also may result in a decrease in absorption of some essential nutrients needed for optimal skin and coat health. The most notable nutrients involved in skin and coat health include protein, fatty acids, and zinc, as well as select vitamins and trace minerals. Each will be discussed in brief in the following paragraphs
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Other minerals and several vitamins also may have an effect on skin and coat health. Deficiencies in copper will result in a decrease in tyrosine and melanin production that will create a dull, rough coat (Cline, 2004). A deficiency in iodine, responsible for a normal functioning thyroid, will create skin lesions and poor hair coat (Cline, 2004).
Although rare, vitamin deficiencies can result in several skin and coat problems. Vitamin A is important in proper keratinization of the skin. Deficiencies will result in hyperkeratinization, poor hair coat, and alopecia (Watson, 1998). Vitamin B-complex vitamins, namely biotin, will manifest similar deficiency symptoms as vitamin A.
However, most lesions of the skin characteristically occur around the face and eyes (Watson, 1998). A deficiency is rare, although it may be caused in animals fed raw eggs due to avidin, a protein that binds biotin, rendering it unavailable to the animal (Watson, 1998).
http://www.engormix.com/the_importance_ ... 14_MAS.htm