共查询到20条相似文献，搜索用时 62 毫秒
1.
2.
《中国草食动物科学》2021,(4)
为补充完善凉山黄牛的种质资源特性,建立凉山黄牛血液生理生化参考值,特开展凉山黄牛血液生理生化指标检测,以期为凉山黄牛的疾病诊断、饲养管理、品种选育等提供科学依据。随机采集3～4岁凉山黄牛公牛、母牛各29头静脉血液,检测28项血液生理生化指标。结果显示,凉山黄牛血液中白细胞数目、红细胞数目、血红蛋白、红细胞压积、平均血红蛋白含量、平均血红蛋白浓度、红细胞分布宽度变异系数、血小板数目、平均血小板体积、血小板分布宽度、血小板压积、总蛋白、白蛋白、葡萄糖、总胆红素、谷氨酰转肽酶、谷丙转氨酶、尿素氮、球蛋白、钙、钠、钾、氯、磷等指标在性别间差异均不显著(P0.05)。公牛的碱性磷酸酶含量、平均红细胞体积均显著高于母牛(P0.05),肌酐含量极显著高于母牛(P0.01);母牛的总胆固醇含量显著高于公牛(P0.05)。凉山黄牛28项血液生理生化指标基本在我国地方牛种正常值范围内。 相似文献
3.
外源生长激素在延边黄牛上的试验研究(Ⅲ)——对血液生理生化指标的影响 总被引：4，自引：0，他引：4
为阐明外源生长激素对延边黄牛血液生理生化指标的影响。试验 1选用 2 0头体重、月龄相近的延边黄牛育成牛 (阉牛 ) ,按体重随机分为试验组和对照组。试验组每 1 4d注射 1次 0 .4 2mg/kgBW的生长激素 ,对照组不注射 ,持续 1 6 8d ,进行了外源生长激素对延边黄牛育成牛血液生理生化指标影响的研究。结果表明 ,试验组的血清葡萄糖 (P <0 .0 5 )和血清钙 (P <0 .0 5 )含量均高于对照组 ,尿素氮 (P <0 .0 1 )含量低于对照组。血清总蛋白、清蛋白、球蛋白、总脂、磷含量试验组分别高于对照组 ,但差异均不显著 (P >0 .0 5 ) ,血清谷丙转氨酶 (GPT)和谷草转氨酶(GOT)含量两组基本相似。试验 2通过对 1 2头泌乳母牛及其哺育的犊牛研究表明 :泌乳母牛和犊牛的血清总蛋白、清蛋白、钙、葡萄糖、总脂、无机磷含量试验组均高于对照组 ,其中清蛋白含量差异极显著 (P <0 .0 1 ) ,母牛的血液指标中 ,血清总蛋白含量试验组高于对照组 (P <0 .0 1 ) ,血清非蛋白氮含量试验组与对照组之间没有差异。犊牛的血液指标中 ,血清总脂、非蛋白氮、谷草转氨酶含量试验组均低于对照组 ,但差异不显著 相似文献
4.
试验选用10头体重(230 kg)相近,24月龄左右的延边黄牛(公牛),进行了蜂胶Penanc-T复合剂对延边黄牛育肥效果和血液生化指标影响的研究,结果表明:经过117 d的育肥,试验组全期增重和日增重分别为140.60 kg和1.20 kg,明显高于对照组(P<0.05);试验组牛体长、胸围和胸宽的增长量明显高于对照组(P<0.05);血液生化指标中,试验组的血清总蛋白和球蛋白含量明显高于对照组(P<0.05);试验组的血清白蛋白、葡萄糖、谷丙转氨酶(GPT)和谷草转氨酶(GOT)含量与对照组之间无明显差异(P>0.05);试验组的血清尿素氮含量明显低于对照组(P<0.01);试验组的血清钙含量明显高于对照组(P<0.01),血清无机磷含量高于对照组(P<0.05)。 相似文献
5.
目的探讨从大鼠腹主动脉和后腔静脉采血对其血液生化值的影响。方法采用全自动生化仪对不同部位采集的动物血液中天冬氨酸转氨酶（AST）、丙氨酸转氨酶（ALT）、碱性磷酸酶（ALP）、肌酸激酶（CK）、总蛋白（TP）、白蛋白（ALB）血糖（GLU）、总胆红素（T—BIL）、总胆固醇（CHO）、甘油三酯（TG）、尿素氮（BUN）、肌酐（Crea）、钾（K）、钠（Na）、氯（Cl）等生化指标进行测定。结果大鼠腹主动脉与后腔静脉采集血液生化值比较，在总蛋白上存在显著性差异，表现为前者血清中总蛋白含量明显高于后者。结论建议在长毒试验动物血液生化测定中，采血部位应进行规范与统一。 相似文献
6.
7.
8.
试验采集了经过12个月育肥的8头大额牛×婆罗门（GBF1）阉牛和30头BMY阉牛血样,进行了肌酐、总蛋白、尿素氮等13项血液生化指标测定。结果发现,GBF1牛肌酐浓度显著高于BMY牛(P＜0.05),其它指标两品种牛间差异不显著(P＞0.05)。另外选取30头BMY牛和30头婆罗门牛,进行90 d的育肥,在育肥1、2、3月分别采血样,分析了肌酐、总蛋白等10个血液生化指标。结果发现,总蛋白在育肥3月极显著低于育肥1和2月(P＜0.01);总胆固醇、谷丙转氨酶在育肥3月极显著高于育肥1和2月(P＜0.01);甘油三酯、肌酐在育肥3月显著低于育肥2月(P＜0.05);尿素氮在育肥2月极显著高于育肥1和3月(P＜0.01);尿酸在育肥2月极显著低于育肥3月(P＜0.01)。 相似文献
9.
《畜牧与兽医》2017,(3):24-29
本试验旨在探讨不同精料补饲水平对锦江黄牛生产性能、瘤胃液理化指标和血液生化指标的影响。选择12头350 kg左右的健康锦江黄牛随机分为4组,每组3头,试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组每头牛每天分别补饲1.0、2.0、3.0和4.0 kg精料,饲养试验预试期10 d,正式期60 d。试验结束后测定瘤胃液及血液生化指标。结果表明:试验Ⅳ组干物质采食量增加,显著高于Ⅰ组(P0.05),其日增重显著高于试验Ⅰ和Ⅱ组(P0.05),Ⅳ组料重比显著低于Ⅰ组(P0.05);Ⅲ和Ⅳ组的瘤胃液p H、氨态氮、乙酸浓度和乙丙比较低,总挥发酸、丙酸和丁酸浓度均显著高于Ⅰ和Ⅱ组(P0.05);Ⅳ组血液葡萄糖浓度显著高于试验Ⅰ组,而血液尿素氮浓度相比显著降低(P0.05)。试验结果表明,综合锦江黄牛生产性能、瘤胃液理化指标和血液生化指标,确定每天补饲4 kg的精料较为适宜锦江黄牛的饲喂。 相似文献
10.
《中国畜牧杂志》2015,(11)
为探讨热应激对不同杂交组合肉牛生理指标和血液生化指标的影响我。本试验选择年龄、体况相近的红红本[红安格斯牛×(红安格斯牛×川南山地牛)]、红西本[红安格斯牛×(西门塔尔牛×川南山地牛)]、西西本[西门塔尔牛×(西门塔尔牛×川南山地牛)]和西红本[西门塔尔牛×(红安格斯牛×川南山地牛)]4个杂交组合肉牛,在夏季热应激条件下测定其直肠温度、脉搏、呼吸频率,并采集血样对其血液生化指标进行了测定和分析。结果表明:在热应激条件下4个杂交组合肉牛的直肠温度和心率差异不显著(P0.05),红西本肉牛的呼吸频率显著低于西西本肉牛(P0.05);在血液生化指标方面,红西本肉牛血清中的谷草转氨酶活性极显著低于西西本、西红本肉牛(P0.01),肌酸激酶活性显著高于西红本肉牛(P0.05);红西本肉牛血清中的T_3含量显著低于西西本、西红本肉牛(P0.05),红细胞钾含量与西红本肉牛差异显著(P0.05),血清K~+、Cl~-、Ca~(2+)含量在4个杂交组合肉牛间差异显著(P0.05),其他血清生化指标含量在4个杂交组合间并没有显著差异(P0.05)。结果显示,红西本肉牛具有较好的耐热性能。 相似文献
11.
12.
13.
魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
14.
本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
15.
16.
以国际标准强毒Ｒ株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离ＭＧ,并收集感染鸡所产蛋分离ＭＧ。结果表明,人工感染４８小时后上、下呼吸道及肺已被全面感染,９６小时气囊已被感染,１２０小时输卵管已能分离到ＭＧ,卵巢始终分离不到ＭＧ。人工感染鸡自１４４小时便能在其所产蛋中分离出ＭＧ。药物治疗能在７２小时内消除感染,油乳剂苗则需２４天后逐渐降低蛋内ＭＧ分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内ＭＧ,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
17.
REASONS FOR PERFORMING STUDY: Centesis of the bicipital bursa using an 8.9 cm long spinal needle has been reported but the alternative of employing a 3.8 cm long hypodermic needle requires validation. OBJECTIVE: To compare the efficacy of 2 different methods of centesis of the bicipital bursa and to evaluate the usefulness of ultrasonographic imaging to determine the location of solution administered when centesis of the bursa is attempted. METHODS: For Trial 1, 6 clinicians, who had no previous experience of centesis of the bicipital bursa, attempted to inject a solution composed of an aqueous radiopaque contrast medium and physiological saline solution (PSS) into the bicipital bursae of 2/12 horses using the previously described distal approach to inject one bursa and a proximal approach to inject the contralateral bursa. The bicipital tendon and bursa were examined ultrasonographically before and after injection; and both shoulders were examined radiographically to identify the location of the medium. In Trial 2, another 6 clinicians, also with no previous experience of centesis, repeated Trial 1, using 6 horses, but the radiopaque contrast medium was mixed with air instead of PSS. RESULTS: Accuracy of centesis using the proximal approach was 39% and that of the distal approach 28%. Ultrasonographic examination of the shoulder allowed the location of solution and air to be accurately predicted in all 12 shoulders examined. CONCLUSIONS: Clinicians who have had no previous experience performing centesis of the bicipital bursa are unlikely to be successful in centesis using either approach. Radiographic examination after injecting a radiopaque contrast medium may be necessary to assess the success of centesis especially if bursal fluid is not obtained during centesis. Injecting air along with the radiopaque contrast medium provides more accurate ultrasonographic confirmation of centesis and better radiographic definition than does injection without air. 相似文献
18.
19.
20.
Effects of size of ingestively masticated fragments of plant tissues on kinetics of digestion of NDF
Ingestively masticated fragments were collected and sized via sieving. Different sizes of esophageal masticate and ruminal digesta fragments, and ground fragments of larger masticated pieces were incubated in vitro, and undigested NDF remaining at intervals of up to 168 h of incubation was determined. The ruminal age-dependent time delay (tau) for onset of digestion of NDF was positively correlated (P < 0.004) with the mean sieve aperture estimated to retain 50% of the fragments between successive sieve apertures (MRA). Degradation rate of potentially degradable NDF (PDF) and level of indigestible NDF were not related (P > 0.10) to MRA of masticated and ground fragments. Estimates of tau were positively related to MRA, with slopes of bermudagrass < corn silage < ruminal fragments of corn silage. It was concluded that fragment size-, and consequently, ruminal age-dependent onset of PDF degradation of a mixture of different fragment sizes results in an age-dependent rate of degradation of the more rapidly degrading of two subentities of PDF. Models are proposed that assume a tau before onset of simultaneous degradation of PDF from two pools characterized as having gamma-modeled age-dependency and age-constant rates. The ruminal age-dependent pool seems to be associated with the faster-degrading pool, and its rate parameter increases with range in MRA in the population of fragments. Conceptually, the ruminal age-dependent rate parameter for PDF degradation seems to represent a composite of several effects: 1) effects of the size-dependent tau; 2) range in MRA of the population of ingestively masticated fragments; and 3) subentities of PDF that degrade via more rapid age-dependent rates compared with subentities of PDF that degrade via age-constant rates. The estimated fractional rates of ruminative comminution of ingestively masticated fragments (0.060 to 0.075/h) were of a magnitude similar to the mean fractional rates of PDF digestion (0.030 to 0.085/h), which implies that ruminative comminution may be first-limiting to fractional rate of PDF digestion. The in vivo roles of ingestive and ruminative mastication of fragments on PDF degradation must be considered in any kinetic system for estimating PDF digestion in the rumen. These results and others in the literature suggest that the rate of surface area exposure rather than intrinsic chemical attributes of PDF may be first-limiting to degradation rate of PDF in vivo. 相似文献