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Titolo:
Effect of metabolic acidosis on white-tailed deer antler development
Autore:
Campbell, TA; Hewitt, DG;
Indirizzi:
Texas A&M Univ, Caesar Kleberg Wildlife Res Inst, Kingsville, TX 78363 USATexas A&M Univ Kingsville TX USA 78363 Res Inst, Kingsville, TX 78363 USA
Titolo Testata:
PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY
fascicolo: 6, volume: 73, anno: 2000,
pagine: 781 - 789
SICI:
1522-2152(200011/12)73:6<781:EOMAOW>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOUTH TEXAS; PHYSIOLOGICAL-RESPONSES; CHEMICAL-COMPOSITION; BASE-BALANCE; GROWTH; DETOXIFICATION; REQUIREMENTS; RESTRICTION; DIGESTION; NUTRITION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Campbell, TA Univ Georgia, Daniel B Warnell Sch Forest Resources, Athens, GA 30602 USA Univ Georgia Athens GA USA 30602 urces, Athens, GA 30602 USA
Citazione:
T.A. Campbell e D.G. Hewitt, "Effect of metabolic acidosis on white-tailed deer antler development", PHYSIOL B Z, 73(6), 2000, pp. 781-789

Abstract

Metabolic acidosis can result when herbivores consume browse diets high inplant secondary compounds. One mechanism for buffering excess acid is the mobilization of calcium and other alkaline salts from the skeletal system. White-tailed deer (Odocoileus virginianus) and other cervids consuming browse during antler formation may use minerals essential for antler development as buffers, resulting in altered antler characteristics. Our research objectives were to examine the effects of metabolic acidosis on mineral metabolism, acid-base homeostasis, and antler development in white-tailed deer. Fifteen male white-tailed deer were assigned to one of three diets: 2% NH4Cl, 3% commercial tannic acid, or a basal ration without additive. Two feeding trials were completed on each deer to determine nutrient use. Urine pH and the percentage of urinary nitrogen excreted as NH4+ varied by diet. No significant diet or trial effects occurred for nitrogen, calcium, phosphorus,magnesium, or sodium use. Urinary calcium excretion varied between diets. No dietary differences were observed for antler characteristics. The NH4Cl diet induced metabolic acidosis but did not alter antler development in white-tailed deer. Skeletal mineral reserves and mineral intake appeared sufficient to buffer excess acids and support antler development.

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Documento generato il 25/11/20 alle ore 05:54:49