绒毛用羊高效繁育的关键性技术

针对我国绒、毛绵、山羊产业的发展现状与存在的主要问题,提出绒毛用羊高效繁育关键性适用技术。以狠抓＂种＂、＂繁＂为根本,提供优质饲草料与人工种草为基础,随着饲养方式的渐变改善饲养方法,加强羊舍建设与卫生保健,建立完善的免疫体系,确保绒毛用羊安全、高效生产目标的实现。     

2016年度国家绒毛用羊产业技术工作总结

2016年,国家绒毛用羊产业技术体系张掖综合试验站与中国农业科学院兰州畜牧与兽药研究所合作,加强高山美利奴羊的选育推广,加快肉用(多胎)细毛羊新品种(系)培育进程,强化对示范县的科技培训和示范指导.开展了绒毛用羊舍饲半舍饲高效养殖关键技术研究与示范、绒毛用羊疾病防控(治)关键技术研究与集成示范、绒毛质量控制关键技术研究与示范工作,制定绒毛用羊饲草料资源评价利用及饲养标准,进行了绒毛用羊产业发展与政策研究和产业基础数据平台建设,取得了显著的效果.     

肉鹅快速高效肥育技术

饲养肉鹅采用快速高效肥育技术,肥育周期短,饲养成本低,经济效益高,一般饲养７０天即可上市,平均只重３～５千克,每只鹅可获纯利１０～１５元。其快速高效肥育的主要技术如下：１肥育鹅品种选择选用狮子头鹅、溆浦鹅等肉用型杂交品种。这些鹅头大、腿脚粗、绒毛金黄...     

提高肉牛养殖效益的技术措施

为发展高产、低耗、高效的养牛业,要有科学规范饲养管理技术,推广"杂交--饲草加工---补料--育肥"的节粮高效饲养技术.     

怎样养好雏鸡

如何搞好雏鸡的饲养管理,关键有三点:一是选好鸡苗;二是准备好育雏场地;三是饲养雏鸡过好"三关". 1 怎样选好鸡苗,选好鸡苗要做到"一看、二听、三摸、四抓" 一看:健康鸡苗活泼好动,眼大有神,对周围环境比较敏感,个体较大,绒毛整洁,肛门周围无粪便粘污.     

2017年国家绒毛用羊产业发展趋势与政策建议

目前,我国羊毛存在"三多一少"的情况,就是羊的头数多、毛纺产量多、进口羊毛多,一少就是自给率少.文章通过分析2016年我国绒毛用羊产业特点和细毛羊产业发展存在的问题,提出我国2017年绒毛用羊产业发展趋势,以供参考.     

绒山羊的营养搭配与饲管要点

正绒山羊是目前世界上产绒量最高、绒纤维品质最好的品种,是我国人工选育的一种独特生物资源,并对绒山羊的特性、营养需求搭配、饲养管理、疾病防控、品种改良等方面做了许多研究和探索。绒山羊除了身上的绒毛很长之外,外貌特征和生活习性都跟普通山羊很相似,长绒毛在冬天是保温御寒的神器,比普通山羊更耐寒,故我国北方地区多饲养绒山羊。因饲养风险较小、投资回报快,近年来我国绒山羊饲养量迅速增长,俨然成为山区农民增收致富的一个高效产业。饲养量在     

补饲怀孕母驼对胎儿毛囊及毛纤维发生发育和体尺体重影响的研究

<正> 本试验在于骆驼胎儿期,毛囊及绒毛生长发育旺盛时期,通过改善怀孕母驼的饲养管理,来达到促进胎儿绒毛生长和增加毛囊密度的目的.试验已取得了一定效果,现将结果整理如下.1 材料与方法1.1 本试验于1989年在阿左旗豪斯布尔苏木苏海图选用相近的两牧户驼群,分别用同一公驼交配,作好配种记录。     

2016年度国家绒毛用羊产业技术发展报告

文章对国际绒毛用羊生产与贸易概况及国际绒毛用羊产业技术研发进展进行了分析,并相应介绍了国内绒毛用羊生产与贸易概况和国内绒毛用羊产业技术研发进展,以供参考.     

牛的高效饲养新模式

为发展高产、低耗、高效的养牛业、必须改变夏秋散牧、冬春打荒的落后饲养方式,充分挖掘资源潜力,科学规范饲养管理技术,积极推选"杂效牛-氨化草-混合料-添加剂-2岁半-400公斤-300元"的节粮高效饲养新模式.     

Feed intake, digestion and digesta characteristics of cattle fed Bermudagrass or orchardgrass alone or with ground barley or corn

Feed intake, digestion and digesta characteristics of cattle fed bermudagrass (BG) or orchardgrass (OG) alone or with supplemental ground corn or barley were determined in two 6 x 6 latin squares with 2 x 3 factorial treatment arrangements. In Exp. 1, beef cows (Hereford, Angus and Hereford-Angus; 452 kg) cannulated in the rumen and duodenum were fed BG (7.9% CP, 79% NDF and 8.7% ADL) or OG (9.8% CP, 79% NDF and 7.2% ADL) hays at 1.2% of BW per day either alone or with added ground barley (.64% BW) or ground corn (.60% BW daily). The increase in microbial OM flow with corn was greater for OG than for BG; corn elevated microbial OM flow more than did barley with OG but less than with BG (forage type x grain source interaction; P less than .10). The increase in total tract OM digestion with grain was greater for BG than for OG (supplementation effect and forage type x supplementation interaction; P less than 05). In Exp. 2, Holstein steers (228 kg) were fed BG and OG hays ad libitum either alone or with addition of either 1.07% of BW per day of barley or 1.00% BW of corn. Total DM intake was 2.19, 3.03 and 2.82% BW for BG and 2.14, 2.80 and 2.52% BW for OG alone or with barley or corn supplements, respectively, being affected by forage type, grain supplementation, grain type and a forage type x grain supplementation interaction (P less than .05). Organic matter digested daily (g/d) was higher for OG than for BG, higher with than without grain and higher for barley than for corn (P less than .05).     

Sedative effects of hydromorphone or oxymorphone with or without acepromazine in dogs

Hydromorphone is an agonist opioid with potency approximately five times that of morphine and half that of oxymorphone. The purpose of this study was to compare hydromorphone with oxymorphone, with or without acepromazine, for sedation in dogs, and to measure plasma histamine before and after drug administration. Ten dogs received IM hydromorphone (H; 0.2 mg kg^?1), oxymorphone (O; 0.1 mg kg^?1), hydromorphone with acepromazine (H; 0.2 mg kg^?1, A; 0.05 mg kg^?1) or oxymorphone with acepromazine (O; 0.1 mg kg^?1, A; 0.05 mg kg^?1) in a randomized Latin‐square design. Sedation score, heart rate, respiratory rate, blood pressure, and SpO₂ were recorded at baseline and every 5 minutes after drug administration up to 25 minutes. Plasma histamine was measured at baseline and at 25 minutes post‐drug administration. Data were analyzed with repeated measures anova . Mean ± SD body weight was 21.62 ± 1.54 kg. Mean ± SD age was 1.07 ± 0.19 years. Sedation score was significantly greater for OA after 5 minutes than O alone (4.1 ± 3.5 versus 1.9 ± 1.5) and for HA after 15 minutes than H alone (8.6 ± 2.9 versus 5.9 ± 2.5). There was no significant difference in sedation between H and O at any time point. There was no significant difference between groups at any time with respect to heart rate, respiratory rate, blood pressure or SpO₂. Mean ± SD plasma histamine (nM ml^?1) for all groups was 1.72 ± 2.69 at baseline and 1.13 ± 1.18 at 25 minutes. There was no significant change in plasma histamine concentration in any group. Hydromorphone is effective for sedation in dogs and does not cause measurable increase in histamine. Sedation with hydromorphone is enhanced by acepromazine.