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1.
体液的酸碱平衡对动物生理活动和最佳生产性能的发挥十分重要,日粮电解质平衡直接参与机体酸碱平衡的维持与调节,从而对动物的健康和生产性能等产生重要影响。因此,根据不同动物品种、环境和季节等因素配制不同阴阳离子水平的日粮,在动物生产中具有重要意义。 相似文献
2.
矿物质元素对动物营养十分重要 ,随着单个矿物质元素研究的深入 ,矿物质元素之间的平衡越来越受到重视 ,近年来国外有关日粮阴阳离子平衡的研究报道相当多 ,而国内较少。矿物质阴阳离子参与维持机体酸碱平衡 ,而生理体液中的酸碱平衡对于维持动物的正常生理活动和最佳的生产性能十分重要 ,因此日粮阴阳离子平衡可直接影响到动物的生理活动和生产性能。根据动物的体液酸碱平衡情况调节日粮阴阳离子浓度 ,使体液中的酸碱平衡达到动物最佳生产性能的要求 ,是研究日粮阴阳离子平衡的主要目的。1 反刍动物日粮阴阳离子平衡的表达式日粮阴阳离子… 相似文献
3.
文章综述了保持日粮阴阳离子平衡对动物生产性能、体内酸碱平衡、血液和尿液生理生化指标的影响等几个方面在动物生产中的研究和应用。为动物的合理饲养育肥，进一步发挥其生产潜力，提高生产水平和经济效益提供依据。 相似文献
4.
矿物质元素对动物营养十分重要,随着单个矿物质元素研究的深入,矿物质元素之间的平衡备受重视.近年来,国外有关日粮阴阳离子平衡(DCAB)的研究报道相当多,而国内较少.矿物质阴阳离子参与维持机体酸碱平衡,对于维持动物的正常生理活动和最佳的生产性能十分重要,因此,DCAB可直接影响到动物的生理活动和生产性能.根据动物的体液酸碱平衡情况调节日粮阴阳离子浓度,使体液中的酸碱平衡达到动物最佳生产性能的要求,这是研究DCAB的主要目的. 相似文献
5.
长期以来,酸碱平衡一直是生理生化学家们所研究的领域。近３０年来,随着动物营养学的深入发展,人们认识到酸碱平衡在猪营养中的重要意义,体内酸碱平衡的失调将影响猪体健康和生产性能。影响酸碱平衡的因素很多,其中日粮离子平衡是最重要的因素之一,影响着猪的食欲和... 相似文献
6.
电解质平衡对动物的生命活动和生产性能起着非常重要的作用。大量研究表明，动物最佳的生理状况和生产性能需要适宜的饲粮电解质平衡，后者直势头影响机体内的酸碱平衡，进而影响营养素的利用效率和动物的生产性能。本文综述了饲粮电解质平衡状况的表示方法及其饲粮电解质平衡对仔猪生长性能及营养素的消化吸收和代谢的影响。 相似文献
7.
长期以来,酸碱平衡一直是生化、生理学家的研究范畴。直到近10～20年来,随着动物营养学的深入研究,动物营养家才开始考虑日粮配合的酸碱平衡,发现日粮电解质平衡可以改变动物体内的酸碱平衡,进而影响动物的生长和生产。 近年来的研究表明,日粮电解质平衡可以影响动物的酸碱平衡、能量、蛋白质和氨基酸的代谢,影响动物的生长率和饲料转化效率、肉畜肉质,奶牛奶产量,产乳热等。 相似文献
8.
讨论电解质平衡对动物生产性能、动物健康、营养物质代谢产生的影响及添加酸化剂对体内酸碱平衡和日粮电解质的影响。 相似文献
9.
饲料电解质平衡是指饲料中Na^+、K^+、Cl^-离子毫当量的总和,饲料电解质平衡直接影响动从而影响动物体液酸碱平衡,其对动物的正常生理活动十分重要。本文综述了电解质平衡的概念、计在母猪生产上的应用研究进展,结合最新研究成果,为繁殖母猪日粮配方中电解质平衡理论提供参考。 相似文献
10.
饲粮离子平衡（DCAB）又可称为饲粮电解质平衡（DEB），电解质是指那些在代谢过程中稳定不变的阴阳离子。生理体液中的电解质主要参与维持渗透压，调节酸碱平衡和控制水的代谢。生理体液中的电解质平衡对于动物的正常生理活动十分重要，它又直接受饲粮电解质平衡的影响，因此饲料电解质平衡可影响动物的生理活动。只有根据动物的体液电解质平衡情况调节饲粮的电解质，使体液中电解质平衡（DEB＝0），动物的生理状态才最好，生产性能才最佳。 相似文献
11.
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
13.
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
14.
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
15.
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
17.
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
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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