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1.
小麦育芽养鹅好
用小麦育芽养鹅,可增加饲料来源,显著提高鹅的料肉比,缩短饲养周期5-10天。据试验,每千克小麦经育芽处理,可得6-8千克麦芽。养1只3-4千克重的商品鹅仅需要4～5千克小麦、 相似文献
2.
<正>用小麦育芽养鹅,可增加饲料来源,显著提高鹅的料肉比,缩短饲养周期5~10 d。据试验,每千克小麦经育芽处理,可得6~8 kg麦芽。养1只3~4 kg质量的商品鹅仅需要4~5 kg小麦、1 kg豆饼、5kg麦麸及少量鱼粉、骨粉等。育芽取30 kg小麦,置于30℃左右的温水中浸泡8 h,捞出沥干,放入温度在20℃左右、空气湿度适宜的环境中催芽6~7 d,待麦芽长到6 cm时取出,拌入8%的菜籽饼或5%的豆饼、25%的麦麸或 相似文献
3.
小麦育芽喂鹅好小麦育芽后喂鹅可显著提高鹅的肉料比,缩短其饲养周期。方法:取30千克小麦,置于30℃左右的温水中浸泡8小时,捞出沥干,放入20℃左右、空气湿度适宜的环境下催芽6～7天, 相似文献
4.
(一)烧碱 是一种强碱性高效消毒药,对病毒、细菌、芽胞均有很强的杀灭作用,也可杀灭某些寄生虫卵。1％～2％的水溶液用于消毒圈舍、饲槽、用具、运输工具等;3％～5％的水溶液用于炭疽芽胞污染场地的消毒。烧碱对金属物品有腐蚀作用,消毒完毕要用水冲洗干净;对皮肤、被毛、黏膜、衣物有强腐蚀和损坏作 相似文献
5.
[目的]研究湖南避雨栽培模式下的红地球冬芽花芽分化特性,为解决避雨栽培下“红地球”冬芽花芽分化能力差的问题提供理论依据。[方法]2015年夏季采用解剖方式观察新梢1-12节各节位冬芽的花芽分化状况,于当年冬季再次进行观测,并于2016年春季再次统计新梢花芽率。[结果](1)红地球冬芽内关键未分化原基形成节位为5-7节位,在冬芽内关键节位对面形成的未分化原基极有可能经过多次分化形成花序原基;若冬芽关键节位未能形成未分化原基,其以上节位形成的未分化原基极有可能发育成卷须原基。(2)红地球在始花期前1周左右,新梢中部节位的芽最先开始形态分化,始花期前1-2周的生理分化是花芽分化的关键调控时期。(3)冬季观测时红地球主芽坏死率为39.74%,而主芽坏死后该冬芽仍为花芽(花序原基由副芽分化)的比率仅1.68%,表明红地球主芽易坏死且副芽分化能力差。(4)对夏季、冬季(潜在花芽率)和来年春季(实测花芽率)花芽率进行观测,结果表明花芽率从夏季的57.74%下降至来年春季的27.33%,花芽率的下降主要发生在夏季花芽形成后至冬季修剪之前,此期主芽易坏死是导致红地球花芽率减少的主要原因之一;潜在花芽率为23.83%,与实测花芽率相近,因而通过对冬芽潜在花芽率的检测可估计葡萄第二季产量。(5)红地球潜在花芽率与枝梢横截面积无相关性,潜在花芽率与主芽坏死率之和同枝梢横截面积有极显著正相关关系,主芽坏死率与枝梢横截面积也有极显著正相关关系。[结论]主芽坏死是导致红地球花芽率减少的主要原因之一。 相似文献
6.
选取多年生黑麦草( Lolium Perenne L.)的3个优良品种:里加(Regal)、贝尔勒(Belle)、马拉松(Marathon)作为植物材料,以无菌苗的茎尖为外植体,对多年生黑麦草丛生芽的诱导、增殖进行研究,以其建立多年生黑麦草丛生芽高频增殖体系,并在此基础上确定丛生芽离体培养的最适筛选剂及其浓度。结果表明:当2,4-D和6-BA浓度分别为0.5 mg·L -1和2.0 mg·L -1时有利于茎尖诱导产生丛生芽;丛生芽增殖的最适6-BA浓度为2.0 mg·L -1;继代培养时间过长对丛生芽块的生长不利;基因型对丛生芽的诱导和增殖有很大影响;适宜的生根培养基为1/2 MS+NAA 0.1 mg·L -1。此外,还确定了丛生芽的最适筛选剂为G418和Hyg,其浓度分别为150 mg·L -1和75 mg·L -1。从而,建立了一种诱导率和增殖率较高并且实验周期短的丛生芽高频增殖培养体系,并进一步探讨了建立多年生黑麦草遗传转化受体系统的必要条件。 相似文献
7.
<正> 聚合草有许多芽,在正常情况下始终不发育,但可以利用它们进行繁殖;有的芽在正常情况下只能发育成穗,也可以用于繁殖。这些芽是茎生叶腋芽和丛生叶腋芽。1株2年生的聚合草上有10几个茎生叶腋芽和200个左右的丛生叶腋芽。用这些芽进行繁殖,比现有的用根段、茎段和叶柄繁殖出苗快。用腋芽进行繁殖能得到壮苗。 相似文献
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采用小麦育芽养殖四季鹅,可以增加饲料来源,缩短饲养周期5～10天,从而提高养鹅效益。试验表明,每千克小麦经过育芽处理,可以获得6～8千克麦芽。养1只3.5～4千克的商品鹅仅需要4～5千克小麦、1千克豆饼、5千克麦麸及少量鱼粉、骨粉等。 具体育芽的方法是:取30千克小麦,放在30℃左右的温水中浸泡8小时,然后捞出沥干,放入温度在20℃左右、空气湿度适宜的环境下催芽6～7天,等麦芽长到6厘米左右长时取出,拌入8%的菜饼,或5%的豆饼、25%的麦麸,或25%的米糠、3%～5%的鱼粉、2%的骨粉、0.5%的食盐、1%的中粗沙及适量微量元素。 饲养的方法是:最好… 相似文献
9.
[目的]探索葡萄冬芽主芽坏死的规律,分析影响主芽坏死的可能原因,为研究降低冬芽主芽坏死栽培技术措施提供理论依据。[方法]利用解剖观测的方式对湖南省、山东省等种植的‘红地球’冬芽进行对比观测;对湖南省种植的7种欧亚种葡萄(‘美人指’、‘香妃’、‘红罗莎里奥’、‘爱神玫瑰’、‘白罗莎里奥’、‘甲斐乙女’、‘红地球’),4种欧美种葡萄(‘摩尔多瓦’、‘金手指’、‘阳光玫瑰’、‘夏黑’)共计11个葡萄品种冬芽主芽坏死率进行统计学分析;对葡萄的萌芽期、摘心期、盛花期、第一次膨大期、浆果生长期、浆果成熟期、采果期、休眠期8个不同时期的冬芽主芽坏死情况进行追踪解剖观测。[结果](1)湖南省、山东省‘红地球’葡萄冬芽均存在主芽坏死现象,且湖南地区更严重。(2)湖南省主栽的11个葡萄品种均出现了主芽坏死现象,不同品种之间具有显著性差异(P>0.05),且欧亚种坏死程度显著大于欧美品种(P>0.05)。(3)主芽坏死高峰期为第一次膨大期和浆果成熟期,且主芽坏死一经形成不可逆转。(4)结果枝较营养枝主芽坏死率高,且各品种主芽坏死率较高的节位均集中在第7、8节位。[结论]第一次膨大期和浆果成熟期主芽坏死出现高峰期,初步推断是由于这两个时期树体营养急需造成主芽坏死严重,品种基因型、品种属性、树体营养不足、较高的赤霉素含量均可能是影响葡萄冬芽主芽坏死的主要因素。 相似文献
10.
<正> 一、冬接良桑十大技术要点(一)枝新鲜、芽饱满选用新鲜、充实饱满、颜色正常的穗芽,做到六芽(干芽、虫芽、烂芽、黑心芽、损伤芽、病芽)不用,良桑枝条最好随伐随接,需要从外地调进品种的“良枝”,事先要联系好,随伐快运,及时嫁接,运贮期最好不超过一星期,否则影响成活率。据试验:如穗条重量减轻3%,成活率96%;减轻5%,成活率90%;减轻15%,成活率 相似文献
11.
In late December 1984, 1853 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1984 and 35% of them responded. Veterinarians reported that 97,794 dogs were blood-tested to check for microfilariae and 1417 dogs (1.45% of those tested) were found with heartworm. Another 34 dogs were amicrofilaremic, but were diagnosed as having heartworm disease, to give the total number diagnosed in 1984 as 1451 (1.48%). Heartworm was reported from all provinces except Prince Edward Island and Newfoundland but most (1310) of the cases were in Ontario. In Quebec, 126 cases were reported mostly from west of Montreal. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 27% of the cases were observed with clinical signs of heartworm disease and 72% had a history of not having left Canada. Southwestern Ontario continued to be the primary focus of the infection. 相似文献
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In late December 1983, 2 800 veterinarians across Canada were sent a questionnaire in order to assess the status of heartworm disease in Canada in 1983 and 26% of them responded. Veterinarians reported that 59 504 dogs were blood-tested to check for microfilariae and 771 dogs (1.30% of those tested) were found with Dirofilaria immitis. Heartworm disease was diagnosed in all provinces except New Brunswick and Newfoundland but most (733) of the cases were in Ontario. Heartworm disease was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 31% of the cases were observed with clinical signs of heartworm disease and 64% had a history of not having left Canada. Southwestern Ontario continues to be the focus of the infection and most of the dogs there had not left the province previously. 相似文献
15.
In late November 1991, 1883 clinics in Canada were sent a questionnaire to assess the status of Dirofilaria immitis in dogs in 1991 and there was a 60.0% response. There were 344,031 dogs tested for heart-worm (HW), 627 were found infected and the prevalence of HW infection was 0.18%. There were 417 dogs with HW in Ontario, 116 in Manitoba, 38 in Quebec, 53 in British Columbia, three in Alberta, and one in Nova Scotia. In British Columbia, all of the infected dogs but one were from the Okanagan valley which, as from 1991, is a new focus of infection in Canada. Most dogs with HW had not been on preventive medication in 1990, and the prevalence among dogs tested and unprotected was 0.59%. That prevalence was considerably higher in endemic areas. Companion dogs, over three years of age and maintained primarily outdoors in rural areas, were most frequently infected. One cat was diagnosed with D. immitis and 33 dogs had Dipetalonema reconditium. 相似文献
16.
In late December 1985, 1485 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1985 and 44% of them responded. Veterinarians reported that 137,300 dogs were blood-tested to check for microfilariae and 1210 dogs were found with heartworm. Another 36 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number diagnosed in 1985 as 1247 (0.91%). Heartworm was reported from all provinces except Prince Edward Island, Newfoundland and Saskatchewan but most (1126) of the cases were in Ontario. Southwestern Ontario continued to be the primary focus of the infection in Canada. From Quebec, 91 cases were reported mostly from and around Montreal. From Manitoba, 19 cases were reported from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 28% of the cases were observed with clinical signs of heartworm disease and 78% had a history of not having left Canada. 相似文献
17.
In late November 1988, 1581 small and mixed animal clinics and institutional veterinarians across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1988, and 46% of them responded. Veterinarians reported that 181,577 dogs were blood-tested for heartworm disease and 367 dogs were found with D. immitis microfilariae. Another 60 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1988 as 441 (0.24%). 相似文献
18.
In late November 1989, 1732 clinics and institutional veterinarians were sent a questionnaire to assess the status of Dirofilaria immitis, and 51.7% responded. Of 247,716 dogs tested, 394 had D. immitis microfilariae and 51 were amicrofilaremic for a total of 445 cases and heartworm prevalence of 0.17%. Most (408) of these dogs had no preventive medication and the prevalence among dogs tested and unprotected was 1.01%. That prevalence was considerably higher in endemic areas. Thirty-seven dogs with heartworm had preventive medication. Heartworm was most frequent in companion dogs over three years of age maintained outdoors in rural areas. About 75% of the cases had never left Canada, 26% had clinical signs and 125 were not treated. Heartworm was reported from British Columbia, Manitoba, Ontario, Quebec, Nova Scotia and Newfoundland, but 383 cases were in Ontario. South-western Ontario was the primary focus of infection. There were 33 cases in Quebec and 24 in Manitoba, mainly found in and around Metropolitan Montreal and Winnipeg respectively. 相似文献
19.
In late November 1987, 1246 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1987, and 50% of them responded. Veterinarians reported that 165,428 dogs were blood tested for heartworm disease and 511 dogs were found with D. immitis microfilariae. Another 78 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1987 as 589 (0.35%). 相似文献
20.
In late December 1986, 1224 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1986; 46% of them responded. Veterinarians reported that 150,989 dogs were blood-tested for microfilariae and 869 dogs were found with heartworm. Another 65 dogs were amicrofilaremic but diagnosed with heartworm disease and one was found with heartworm at necropsy to give the total number diagnosed in 1986 as 935 (0.62%). Heartworm was reported from Manitoba, New Brunswick, Ontario and Quebec, but most (810) of the cases were from Ontario. South-western Ontario continued to be the primary focus of the infection in Canada. There were 103 cases reported from Quebec, mostly from and around Montreal, and 21 cases from Manitoba, from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 33% of the cases were observed with clinical signs of heartworm disease and 81% had a history of not having left Canada. 相似文献
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