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为了更好地处理保护环境和经济发展的关系,解决畜禽规模养殖与环境保护的关系,促进人与环境和谐共生,笔者通过对畜禽规模养殖场建设进行实地走访调研,针对畜禽规模养殖场的建设与环境问题提出了改进措施。科学选择畜禽规模养殖场的建设地址,是畜禽规模养殖保护环境的第一步,在环保大督察中责令拆迁的畜禽规模养殖场,大多是选址不科学不合理,对环境污染破坏严重且百姓反映强烈的畜禽规模养殖场。 相似文献
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<正>由于现行的法律法规对小型畜禽养殖场的管理未加以规范,环境管理措施不能落实,因此,加强这方面的立法和出台解决污染、管理等方面措施势在必行。我国农村畜禽养殖发展方式粗放、资源消耗高、浪费大,畜禽粪便还田比例低,环境污染较为严重。一、庭院式养殖,是环境保护的盲点农村小型畜禽养殖场涉及千家万户,虽然个体养殖量少,但总体数量却不容忽视。在我国大多数地区,规模化养殖场仅是少数,地方小型养殖场数量总和远远超过规模化养殖场,并且粪污大部分未经治理或未彻底有效治理,直接施于农田或排入沟河,对农村环境造成污染。 相似文献
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我国农村畜禽养殖业发展方式相对粗放,资源消耗高、浪费大,畜禽粪便还田比例低,环境污染较为严重,其COD排放量是工业和生活污水排放量的5倍以上。1庭院式养殖是环境保护的盲点农村小型畜禽养殖场涉及千家万户,虽然个体养殖数量少,但总体数量却不容忽视。在我国大多数地区,规模化养殖场仅是少数,地方小型养殖场数量远远超过规模化养殖场,并且粪污大部分未经治理或未彻底有效治理,直接施向农田或排入沟河,对农村环境造成严重的污染。我国在防治畜禽养殖污染方面可执行的法规 相似文献
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由于技术推广容易、养殖成本低、经济效益好,畜禽规模养殖是现代畜牧业发展的主要方式。随着畜禽规模养殖的发展,畜禽所产生的粪污对环境的污染和破坏越来越受到环保部门的关注。通过对畜禽规模养殖场的走访、调研和深入分析,针对规模养殖场存在的环保问题,提出在畜禽规模养场建设中的环境保护方法和措施。 相似文献
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近年来,畜禽养殖业污染物的排放量急剧增加,已成为农村三大面源污染之一,给群众生产生活带来严重影响,因此探索新的污染治理模式亟不可待.
1农村畜禽养殖业污染中的突出问题
1.1 庭院式养殖是环境保护的盲点农村小型畜禽养殖场涉及千家万户,虽然个体养殖量少,但总体数量却不容忽视.在我国大多数地区,规模化养殖场仅是少数,地方小型养殖场数量总和远远超过规模化养殖场,并且粪污大部分未经处理或未彻底有效治理,直接施于农田或排入沟河,对广大农村造成了严重的环境污染. 相似文献
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《中国畜牧兽医文摘》2012,(10)
<正>自2007年12月国务院批准武汉城市圈为全国两型社会建设综合配套改革试验区以来,市委、市政府坚持发展畜禽养殖与环境保护并重,高度重视畜禽养殖场治污工作,并于2009年提出对畜禽养殖场污染实行综合治理,力争用3年时间使所有规模化畜禽养殖场废弃物达标排放。近3年来,武汉市农业(畜牧兽医)局会同市发改、财政、环保、能源等部门通力合作,强力推进规模化畜禽养殖场污染治理工作,并取得了显著成效。1规模化畜禽养殖污染治理现状 相似文献
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Evidence for the non-involvement of the uterus in the lifespan of the corpus luteum in the cyclic dog 总被引:1,自引:0,他引:1
Progesterone levels in peripheral blood of dogs were analysed during the cycle in which hysterectomy (n = 5) or sham surgery (n = 3) was performed as well as during the cycle of dogs (n = 5) hysterectomized at least one year prior to this study; the data were compared with the findings in control dogs (n = 3). The averages of the duration of the luteal period observed in the three experimental groups were not significantly different from those of control dogs. Immediately after surgery, the progesterone level decreased from 25 to 50% of the presurgical level, but returned to presurgical level in about four days. Prolactin levels were elevated for about 30 h after surgery. Nevertheless, the averages of the mean prolactin levels for each animal during the luteal period of the experimental groups were not significantly different from those of control dogs. It is concluded that in the dog, the uterus is not involved in the lifespan of the cyclic corpus luteum. 相似文献
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嗅源是军犬嗅觉作业训练的依据.军犬鉴别中嗅源能力的培养在整个鉴别训练中占有重要地位,关系到鉴别训练的成败和鉴别能力的提高.所以,军犬在嗅认嗅源时必须按照训犬员的指令充分、细致地感受嗅源气味,并且对嗅源气味产生兴奋反应.如何培养军犬充分嗅认嗅源以及及时解决嗅认过程中出现的问题,成为我们进行鉴别训练的关键.…… 相似文献
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Meschan EM Peham C Schobesberger H Licka TF 《Veterinary journal (London, England : 1997)》2007,173(3):578-584
As there is no statistical evidence that saddle fit influences the load exerted on a horse's back, this study was performed to assess the hypothesis that the width of the tree significantly alters the pressure distribution on the back beneath the saddle. Nineteen sound horses were ridden at walk and trot on a treadmill with three saddles differing only in tree width. Kinetic data were recorded by a sensor mat. A minimum of 14 motion cycles were used in each trial. The saddles were classified into four groups depending on fit. For each horse, the saddle with the lowest overall force (LOF) was determined. Saddles were classified as "too-narrow" if they were one size (2 cm) narrower than the LOF saddle, and "too-wide" if they were one size (2 cm) wider than the LOF saddle. Saddles two sizes wider than LOF saddles were classified as "very-wide". In the group of narrow saddles, the pressure in the caudal third (walk 0.63 N/cm(2)+/-0.10; trot 1.08 N/cm(2)+/-0.26) was significantly higher compared to the LOF saddles (walk 0.50 N/cm(2)+/-0.09; trot 0.86 N/cm(2)+/-0.28). In the middle transversal third, the pressure of the wide saddles (walk 0.73 N/cm(2)+/-0.06; trot 1.52 N/cm(2)+/-0.19) and very-wide saddles (walk 0.77 N/cm(2)+/-0.06; trot 1.57 N/cm(2)+/-0.19) was significantly higher compared to LOF saddles (walk 0.65 N/cm(2)+/-0.10/ 0.63 N/cm(2)+/-0.11; trot 1.33 N/cm(2)+/-0.22/1.27 N/cm(2)+/-0.20). This study demonstrates that the load under poorly fitting saddles is distributed over a smaller area than under properly fitting saddles, leading to potentially harmful pressures peaks. 相似文献
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Observations on the Pathology of the Spleen of the Cat 总被引:1,自引:0,他引:1
Abstract— Lesions were found in the spleen of four of sixty-three cats examined post mortem in the department, and comprised two examples of lymphosarcoma, one of chronic fibrinous peritonitis and one of subcapsular haematoma. Abnormalities were found in two cat spleens received from veterinary surgeons in general practice. In one cat the abnormalities were an haemangiosarcoma with secondary deposits in the liver and in the other extensive mast cell infiltration. In addition lesions were detected in the spleen of three of eighty-seven cats examined post mortem in general practice. The lesions were: multiple secondary deposits of adenocarcinoma from a primary tumour of the mammary gland, a ruptured spleen and a foreign body below the splenic capsule. Résumé— L'examen microscopique de soixante-trois chats pratiqué dans le service a permis de rencontrer quatre fois des lésions de la rate, dont deux lymphosarcomes, une péritonite capsulaire fibrineuse et un hématome sous-capsulaire. D'autre part des lésions ont été trouvées dans deux rates de chat expédiées par des vétérinaires exerçant en pratiaue générale. Chez un chat il s'agissait d'un htmangiosarcome avec métastases hépatiques et chex l'autre d'une infilt ation diffuse par des mastocyta. De plus, on a rencontré des llésions dnas la rate de trois chats parmi quatre-vingt sept autopsies effectuées dans le cadre d'une clientèle génárale. Ces iésions étaient dés métastases multiples d'un adénocarcinome dont la tumeur primitive siègeait dam la glande mammaire, une rupture de la rate et un corps érangers sou capsulaire. Zusammenfassung— Läsionen der Milz wurden bei vier von dreiuiidsechzig in dieser hbteilung sezierten Katzen gefunden, und zwar in zwei Fällen ein Lymphosarkom, in einem Falle eine chron-ische fibrinöse Peritonitis und in einem ein subkapsuläres Hématom. Anomalien fanden sich auch in der Milz von zwei Katzen, die aus der tierxrztlichen Praxis eingesandt wurden. Bei der einen Katze war dies ein Hämangiosarkom mit Metastasen in der Leber, bei der anderen eine weitläufige Infiltration der Mastzellen. Außerdem wurden bei drei von siebenundachtzig in der Praxis sezierten Katzen Milzläsionen gefunden. Diese bestanden am multiplen Metastasen eines Adenokarzinoms der Brustdrüse, einer Milzzerreissung und einem Fremdkörper unterhalb der Milzkapsel. 相似文献