title: Effects of dietary manganese supplementation on nutrient digestibility and production performance in male sika deer (Cervus Nippon).
abstract: This study aimed to investigate the effects of manganese (Mn) supplementation on nutrient digestibility and antler growth in male sika deer. Twenty 3-year-old male sika deer were divided into four groups (Control, T40, T80 and T120). The control diet contained 22.2 mg Mn/kg. The treatment diets were supplemented with 40, 80 and 120 mg of Mn/kg (provided as Mn methionine). The results showed that the digestibility of dry matter and crude protein in the T80 group was greater than other groups. Higher digestibility of neutral detergent fiber and acid detergent fiber was observed in the T80 group than in the control group. Plasma Mn concentrations in the T80 and T120 groups were higher (P < 0.01) than control and T40 group (P < 0.01). The concentration of Mn in feces was increased with increasing Mn amount. Average daily gain of fresh antler and dry antler of T80 was greater than other groups, especially the control group (P < 0.05). In conclusion, the suitable level of Mn supplementation was found to be 80 mg/kg (total Mn content 103.4 mg/kg dry matter), which significantly increased antler daily gain and feed digestibility in 3-year-old sika deer.
authors.affiliation: Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun, China.|State Key Laboratory for Molecular Biology of Special Economic Animals, Changchun, China.
authors.forename: Kun
authors.initials: K
authors.lastname: Bao
authors.affiliation: Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun, China.
authors.forename: Kaiying
authors.initials: K
authors.lastname: Wang
authors.affiliation: Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun, China.
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Wang
authors.affiliation: Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun, China.
authors.forename: Tietao
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun, China.
authors.forename: Hanlu
authors.initials: H
authors.lastname: Liu
authors.affiliation: Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun, China.|State Key Laboratory for Molecular Biology of Special Economic Animals, Changchun, China.
authors.forename: Guangyu
authors.initials: G
authors.lastname: Li
mesh_terms: D000824:Animal Nutritional Physiological Phenomena / Q000187:drug effects*; D000818:Animals; D003670:Deer / Q000254:growth & development* / Q000502:physiology*; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D004068:Digestive System Physiological Phenomena / Q000187:drug effects*; D005502:Food; D008297:Male; D008345:Manganese / Q000008:administration & dosage* / Q000494:pharmacology; D059748:Proteolysis / Q000187:drug effects*
chemical_list: D008345:Manganese
keywords: antler; apparent digestibility; manganese; sika deer; trace minerals