Minerals 2 Flashcards
functions of zinc
component of enzymes and hormone insulin, needed for synthesis of protein and genetic material (DNA)
Zinc deficiency can lead to
dermatitis, alopecia, depigmentation in skin/hair, testicular atrophy, poor growth
things that can tie up zinc so it cannot be used
high Ca++ or vegetable proteins (cheap foods)
functions of Selenium
work w vitamin E as an antioxidant (prevents peroxides and free radical formation), beneficial for immunity
deficiencies of Se can cause
White Muscle Disease (WMD) aka nutritional muscular dystrophy (caused by oxidants damaging of cell membranes and proteins)
common signs of WMD in goats
lambs part-way standing, not fully up right
why we may supplement Se in horses (what disease it treats/ prevents)
tying up/ exertional myopathy/ Monday morning sickness/ azoturia
why we may supplement Se in cattle (what it treats/ prevents)
Retained placentas, mastitis, breeding issues, WMD
Se toxicities can cause
muscle problems, hoof problems(hoof may slough off), hair loss, blindness
list the treatment products that contain selenium for cows, calves/small ruminants, and horses
cows= MuSe
calves/small ruminants= BoSe
horses= Ese
what is chromium (Cr) needed for
carbohydrate metabolism, immune funcrtion
signs of hypokalemia in d/c
(low potassium) weak, not holding head up-right
signs of monday morning sickness
(treat w Se), laying down (adults rarely lay down), standing w legs under body, may have laminitis (inflammation of feet)
most important management factor of reproductive efficiency in high producing dairy cattle
nutrition
how UV light makes vitamin D for reptiles
converts 7-dehydrocholesterol into active form of vitamin D
