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四川省苍溪县，辖９区１镇６５个乡，农业人口６８万，总幅员２３．３万公顷，其中：耕地３．８万公顷、草山草坡１３．２万公顷，发展节粮型畜牧业具有得天独厚的优势。２００１年，全县出栏肥猪９０．５万头、肉牛３．１万头、肉羊５．８７万只、家禽７３０．３万羽，肉类总产量７．２２万吨，存栏毛兔２７５万只，兔毛产量１１０１吨，畜牧业产值５．７３亿元，占农业总产值５３．９％，畜牧业人均纯收入占农户家庭人均纯收入以及畜牧业创税占县级财政收入的比重均超过了５０％。畜牧业连续六年实现“三个过半”，托起了苍溪农村经济的半… 相似文献
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１长年饲养强群，可有效提高经济效益饲养强群是养蜂的基本原则，长年饲养强群，可有效地提高养蜂的经济效益。一些高产蜂场所以产量高、收入多，长年饲养强群是个主要原因。据１９９６年嵊州市７个蜂场调查，其中３个蜂场长年饲养强群，蜜、浆产量高，３１０群蜂年纯收入１５８１００元，群均纯收入５１０元；另４个蜂场有蜂２５０群，群势平平，年纯收入６．５万元，群均纯收入２６０元；其中王浆产量，前者年群均产５．５５ｋｇ，后者为２．８ｋｇ，几乎相差１倍。强群所以能高产、高收入，是因为强群有３大优势：采集力强、繁殖力强、抗… 相似文献
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四川省阆中市在１９８６年被列为国定贫困县后，他们不是就扶贫抓扶贫，而是紧紧抓住国家扶持机遇，以稳定解决温饱为目标，不断深化扶贫开发，在产业化扶贫方面进行了积极的探索，巩固和壮大了畜牧养殖业、林果种植业、蚕桑丝绸业、地毯加工业等几大扶贫产业。１９９７年“五业”产值占全市工农业总产值的５８．２％，农民纯收入中“五业”比重达４２．５％；全市农民人纯收入由１０年前的１９８元上升到７０２元，有１１．９万户、４８万人解决了温饱，分别占贫困农户和人口的７０．４％，７３．９６％。思路：来自扶贫实践在８０年代中期… 相似文献
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刚刚过去的１９９９年，城口县委、县政府坚持以经济建设为中心以越温脱贫统揽工作全局，组织带领全县人民若干实干，各方面工作都取得了新的成绩。全县国内生产总值增长８．５％，略高于全市平均水平：工业总产值增长１０％；农业总产值增长１．８％；财政收入完成３３００万元，增长８．９％；全县贫困程度减轻，基础设施改善；社会事业发展，党建和精神文明加强，政治稳定，社会进步。具体表现在： 农村经济稳步发展。全年粮食总产量１０．８５万吨，农民人均纯收入１２３６元，农村生产生存条件进一步改善。扶贫工作向前推进。规划９９… 相似文献
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蛋鸡饲喂稀土饲料添加剂的效果 总被引：1，自引：1，他引：0
１９９５年１１月到１９９６年７月在平安县种鸡场对罗曼商品代蛋鸡进行２３４ｄ饲喂稀土试验。试验设４个组，每组２９５只。试验１，２，３组鸡日粮中分别添加０．０１％、０．０１５％和０．０２％的ＲＣＴ－３有机稀土饲料添加剂，对照组鸡不喂稀土。结果：试验１，２，３组母鸡日产蛋总重比对照组鸡分别提高１３．９１％（Ｐ＜０．０１），８．３６％（Ｐ＜０．０５）和０．９７％（Ｐ＞０．０５）；产蛋率分别提高９．５９，５．７２和０．８３百分点；只均纯收入增加８．５２元，５．０１元和０．２１元。 相似文献
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在每天补饲３．１５ｋｇ精料的舍饲条件下，用氨化麦秸代替原秸秆和１．０ｋｇ菜子饼进行饲喂奶牛试验，在３０天试验期内，试验组头均日产奶９．８６ｋｇ，比对照组头均日产奶８．３６ｋｇ提高１７．９４％，差异极显著。试验组头均每个泌乳期节约精料４６９．５ｋｇ，头均纯收入比对照组高６６０元，经济效益提高３８．７２％。 相似文献
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从市场上选购断奶土种幼狗１８条,分成３个组,采用米汤煮白菜后,平均分成３份,分别拌入基础料、基础料＋牛肠杂和仔猪料进行育肥试验。结果表明：基础料＋牛肠杂组的日增重达１０７．５ｇ,比完全用基础料组提高１４．６４％,差异极显著（Ｐ＜０．０１）,比完全用仔猪料组降低７．１２％,差异极显著（Ｐ＜０．０１）,每只狗纯收入１６７．１元,分别比两个组提高９．９１％和４．４９％,只日平均纯收入１．３７元,分别比两个组提高９．６％和４．５８％。说明配合料＋白菜＋牛肠杂饲喂肉狗可行。 相似文献
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液相色谱-串联质谱法测定动物尿液中11种β-受体激动剂残留量的不确定度评估 总被引：1，自引：1，他引：0
采用液相色谱-串联质谱法测定动物尿液中11种β-受体激动剂残留量,对标准溶液、体积、质谱峰面积、浓缩过程及回收率等测定不确定度因素进行了分析,通过评定各不确定度分量及标准不确定度,得出11种β-受体激动剂的扩展不确定度在0.7 ～ 1.1 ng/mL范围内.由各因素对合成不确定度的贡献比分析可知,影响较大的因素为试验回收率及标准溶液浓度. 相似文献
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《饲料工业》2019,(18):54-58
应用电感耦合等离子-质谱技术(ICP-MS),建立饲料中钠、镁、铬、锰、铁、铜、锌、砷、硒、镉和铅等元素的测定方法。对饲料样品的前处理方法、仪器工作参数和11种元素标准曲线进行优化;并以加标回收、分析方法比对和重复测试说明方法的准确性和精密性。方法在0～1 000 ng/ml范围内线性良好,仪器检出限为0.557 7～5.072 ng/ml,具有良好的精密度,其回收率在88.1%～104.4%之间,相对标准偏差小于5.0%。同时与原子吸收和原子荧光方法进行比对,测定结果相近。所建立的方法简单、快速,可替代原子吸收和原子荧光方法测定饲料中的11种金属元素,为饲料的质量控制提供理想的元素分析方法。 相似文献
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In experiment 1, 6 pregnant mares received a concentrate that contained a trace mineral premix that provided 14.3 mg Cu, 40 mg Zn, 28 mg Fe, 28 mg Mn, 0.08 mg Co, 0.16 mg I, and 0.16 mg Se/kg concentrate (group A). Seven mares received the same concentrate plus 502 mg Zn and 127 mg Cu once daily (group B). No differences (P > .05) in foal growth data, or Cu, Zn, and Fe concentrations of mare milk, mare serum, or foal serum were observed. In experiment 2, 6 pregnant mares received the same concentrate as group A (group C), and 8 mares received the same concentrate fortified with 4× the trace mineral premix (group D). Group C mares had higher serum Zn concentration at 1 day (P < 0.01) and 56 days (P < 0.04). Group C mares had higher milk Fe concentration at 28 days (P < .01), and group D mares had higher milk Cu concentration at 56 days (P < .01). Group C foals had higher serum Cu concentration at 14 days (P < .03). The results from this study provide no evidence to indicate that supplementing late gestating and lactating mares with higher dietary trace mineral levels than those recommended currently by NRC has any influence on foal growth and development, or on the Cu, Zn, and Fe concentrations of the mare milk, mare serum, or foal serum. 相似文献
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Breed differences for weight (CW), height (CH), and condition score (CS) were estimated from records (n = 12,188) of 2- to 6-yr-old cows (n = 744) from Cycle IV of the U.S. Meat Animal Research Center's Germplasm Evaluation (GPE) Program. Cows were produced from mating Angus and Hereford dams to Angus, Hereford, Charolais, Shorthorn, Galloway, Longhorn, Nellore, Piedmontese, and Salers sires. Samples of Angus and Hereford sires were 1) reference sires born from 1962 through 1970 and 2) 1980s sires born in 1980 through 1987. The mixed model included cow age, season of measurement and their interactions, year of birth, pregnancy-lactation code (PL), and breedgroup as fixed effects for CW and CS. Analyses of weight adjusted for condition score included CS as a linear covariate. The model for CH excluded PL. Random effects were additive genetic and permanent environmental effects associated with the cow. Differences among breed groups were significant (P < 0.05) for all traits and were maintained through maturity with few interchanges in ranking. The order of F1 cows for weight was as follows: Charolais (506 to 635 kg for different ages), Shorthorn and Salers, reciprocal Hereford-Angus (HA) with 1980s sires, Nellore, HA with reference sires, Galloway, Piedmontese, and Longhorn (412 to 525 kg for different ages). Order for height was as follows: Nellore (136 to 140 cm), Charolais, Shorthorn, Salers, HA with 1980s sires, Piedmontese, Longhorn, Galloway and HA with reference sires (126 to 128 cm). Hereford and Angus cows with reference sires were generally lighter than those with 1980s sires. In general, breed differences for height followed those for weight except that F1 Nellore cows were tallest, which may in part be due to Bos taurus-Bos indicus heterosis for size. 相似文献
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枇杷是原产于中国的亚热带果树,是一种药食同源的保健水果,其栽培历史悠久。我国幅员辽阔,生态环境多样,孕育了世界上最多的枇杷种质资源。本文综述了我国枇杷属植物种质资源的收集与保存、种质交流、种质创新与利用的研究现状、问题分析;对未来发展提出意见,要努力创制“种源惟一,节肥、节水,省工、省力、省药”的“一源两节三省”品种与配套栽培技术,精准保护知识产权。对种源的知识产权保护要织密物防、技防的网络,诉案须有保护对象唯一的技术身份数据佐证,独具排他性。综述,本研究为枇杷种质资源的发展创制和产业发展提供决策参考。 相似文献