中国畜牧兽医2016，Vol.43Issue(10)：2591-2597,7.DOI:10.16431/j.cnki.1671-7236.2016.10.012
光照控制、通风设计对绒山羊绒毛生长和圈舍氨气浓度的影响
Effect of Light Controlling and Ventilation Design on Cashmere Growth and Ammonia Concentration of Cashmere Goat
摘要
Abstract
This research was conducted to investigate the effect of light controlling and ventilation design on cashmere growth and ammonia concentration of cashmere goat,which would provide theoretical basis for high efficient and ecological feeding of cashmere goat during the cashmere non-growing period.A total of 56 non-pregnant Shaanbei White cashmere goat with similar age, weight and parity were selected and randomly divided into 3 groups.Group I was received natural light,group Ⅱ was received controlling (illumination at 09 ∶ 30 to 1 6 ∶ 30,and light control at 1 6∶30 to 09∶30 of next day),and group Ⅲ was received same light condition except for addi-tional 15% concentrate feed supplemented.Different ventilation schemes of goat house under the light-controlled condition were set and cashmere wool growth traits and barn NH 3 concentrations were determined.The results showed that illumination condition had no significant effects on body weight of Shaanbei White cashmere goat (P >0.05),but average daily gain of groups Ⅱ and Ⅲwere slightly higher than group Ⅰ.Compared with group Ⅰ,the fluff mixtures weight of groupsⅡ and Ⅲ were extremely significantly increased (P <0.01),the fluff ratio were significantly in-creased (P < 0.05 ),and the weight of cashmere wool,which were increased by 68.40% and 78.78%,respectively,were extremely significantly increased (P <0.01).Less illumination resul-ted in longer cashmere fiber stretched length,while it caused an increasing fiber fineness of cash-mere by increasing illumination.No significant differences were observed between groups Ⅱ andⅢ (P >0.05 ).Under light-controlled conditions,using four mechanical ventilators during non-light controlled time (09∶30 to 1 6∶30)could significantly reduce the concentration of NH 3 (P <0.05).The results indicated that light controlling could increase cashmere production during the cashmere non-growing period of cashmere goat,however,less nutrients intake should be done to prevent the increasing of fiber diameter.Proper ventilation and clearance rate should be considered to keep air quality and goat health according to feeding density and house space.关键词
绒山羊/非产绒期/绒产量/绒毛特性/氨气Key words
cashmere goat/cashmere non-growing period/cashmere yield/cashmere characteris-tics/NH 3分类
农业科技引用本文复制引用
许鑫,王兴涛,高文瑞,陈玉林,张明新,王春昕,杨雨鑫..光照控制、通风设计对绒山羊绒毛生长和圈舍氨气浓度的影响[J].中国畜牧兽医,2016,43(10):2591-2597,7.基金项目
国家绒毛用羊产业技术体系(CARS-40-13、CARS-40-16)；国家重点研发计划(2016YFD0500508)；公益性行业(农业)科研专项(201303059)；陕西省科技攻关项目(2014K01-17-04) （CARS-40-13、CARS-40-16）
