人工补光对阿山马鹿茸生长及粪便激素水平的影响

doi:10.16431/j.cnki.1671-7236.2025.01.007

Abstract

Abstract: 【Objective】 To investigate the effect of artificial light supplementation on the growth of Ashan wapiti antlers and fecal hormone levels. 【Method】 Thirty-six healthy adult Ashan wapiti were selected and randomly divided into supplemental light group and natural light group,with 18 wapiti in each group. The supplemental light test started on February 1 according to the sunrise and sunset schedules of the experimental site,and spotlights was used to simulate the March light in February,and so on,untill the end of May.Fresh fecal samples were collected from five different sites in each pen every 7 d during the test period by partial fecal collection method,and antler length was measured,and fresh antler weight was weighed at the time of antler cutting,testosterone,estradiol and melatonin content of feces were measured by ELISA.Sampling and monitoring continued untill the end of August. 【Result】 Compared with natural light group,the wapiti in supplemental light group shed their antlers 10 d earlier,and there was no significant difference in the weight of the first antler crop between the two groups (P＞0.05),but the growing time of antler in the light-supplemented group was extended by 11.18 d, and the weight of the second antler crop was increased by 28.30% (P＜0.05). Compared with natural light group, the fecal testosterone content in February and April was significantly or extremely significantly lower (P＜0.05 or P<0.01),the fecal estradiol content in February,March and May was significantly or extremely significantly higher (P＜0.05 or P<0.01),and the fecal melatonin content in February,March,April and May was extremely significantly lower (P＜0.01) of the supplemental light group.After the light supplementation,the levels and changes of fecal hormones between the two groups were basically consistent. 【Conclusion】 Artificial light supplementation could promote early disk shedding,prolong antler growth,and increase antler yield,and to some extent reduce testosterone and melatonin levels and increase estradiol levels in feces.

Key words: artificial light supplementation; Ashan wapiti; antler growth; fecal hormone

CLC Number:

S825

YU Shunqin, DILIFEIRE·Nadier, ADILAN·Abdureyimu, LIU Shijie, MAIWULAN·Maimaiti, ZHANG Xinxin, KUERBAN·Tulake. Effects of Artificial Light Supplementation on the Growth of Ashan Wapiti Antler and Fecal Hormone Levels[J]. China Animal Husbandry and Veterinary Medicine, 2025, 52(1): 70-79.

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Effects of Artificial Light Supplementation on the Growth of Ashan Wapiti Antler and Fecal Hormone Levels

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