首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 390 毫秒
1.
对成都麻羊成年母羊和6月龄母羊进行了屠宰测定,分析了肉和常乳的常规营养成分以及肉氨基酸含量.结果表明,成都麻羊成年母羊宰前活重31.31±2.10kg、胴体重14.68±1.52kg、净肉重12.15±1.32kg、内脂重1.40±0.08kg、屠宰率为51.36±2.24%、净肉率为31.77±4.0%;成都麻羊6月龄母羊宰前活重16.2±0.43、胴体重7.0±0.41kg、净肉重5.2±0.32kg、屠宰率为43.21±1.32%、净肉率为38.81±1.49%、.成年母羊鲜肉常规营养成分含量(%)水份71.44 0.22,粗蛋白20.4±0.04,粗脂肪10.69±0.12,能量7968.90±175.16KJ/kg.成年母羊鲜肉氨基酸含量(mg/100g)氨基酸总量27940.0±550.0、必需氨基酸11035.0±65.0、非必需氨基酸16905.0±495.0;成都麻羊乳常规营养成分含量(g/L)乳蛋白45.8±2.2,乳脂59.3±3.3、乳糖44.0±3.2.  相似文献   

2.
通过对150不同性别各年龄段贾洛羊的体尺、体重测定,以及对成年公羊(n=4)成年羯羊(n=6)的屠宰测定,结果得出:成年公羊的屠宰率为63.75±3.59%净肉率为35.00±0.82%,胴体重为37.33±5.05kg,肉骨比3.91.成年羯羊屠宰率为67.17±2.32%,净肉率为40.83±1.17%,胴体重为32.17±3.25kg,肉骨比5.15.成年贾洛羊的宰前活重X与净肉重Y的回归方程为y=1.761x+23.915.  相似文献   

3.
成都麻羊的生长速度研究   总被引:1,自引:1,他引:1  
采用常规方法,测定成都麻羊在不同生长阶段的体重、体尺,以探讨其生长速度.结果表明:初生公羔体重为1.80±0.42kg,母羔为1.54±0.27kg;2月龄断奶公羔重为8.89±1.80kg,母羔为8.53±1.91kg;6月龄公羊重为17.40±5.80kg,母羊为18.50±5.84;12月龄公羊体重为28.32±1.81kg,母羊为26.22±4.52kg;3岁公羊体重为51±3.48kg,母羊为36.2±5.98kg;哺乳期日增重公羊111.33g,母羊为74.50g;2~6月龄公羊日增重为45.90~109.50g,母羊为73.30~116.20g;6月龄体重公羊占成年体重的34.05%以上,母羊51.10%以上;12月龄体重公羊占成年体重的55.42%,母羊72.43%;6月龄公羊体尺指标占成年的76.67%,母羊占74.76%;12月龄公羊体尺指标为成年的84.07%以上,母羊为80.46%;6月龄母羊胴体重7.00±0.41kg,屠宰率为43.20%;成年母羊胴体重13.41±3.38kg,屠宰率为47.20%.  相似文献   

4.
金华猪胴体性状的通径分析及最优回归模型   总被引:1,自引:0,他引:1  
通过对金华猪胴体直长、胴体重、屠宰率、平均膘厚、平均皮厚、后肢重与净肉重的通径分析,结果表明胴体重和屠宰率对净肉重的影响显著,最优回归模型为:y=16.3668 0.1575x2-17.6102x3  相似文献   

5.
应用波尔山羊提高成都麻羊产肉性能研究   总被引:11,自引:6,他引:11  
通过波尔山羊与成都麻羊二元杂交试验,含波血75%、50%和25%的杂种羊,均比成都麻羊的产肉性能有明显的提高。在不同生长发育阶段,含波血75%和50%的杂种羊体尺和体重均极显著大于成都麻羊(P<0.01);含波血25%的杂种羊体尺和体重也多极显著大于成都麻羊(P<0.01)。含波血75%,50%和25%的杂种羊,24月龄公羊体重比成都麻羊相应重30.9kg、25.6kg和3.6kg,分别提高78.6%、65.1%和9.2%,差异极显著(P<0.01),母羊比成都麻羊相应重21.7kg 17.3kg和4.5kg,分别提高66.6%53.1%和13.8%,差异极显著(P<0.01)。含波血75%,50%和25%的杂种羊的日增重,在哺乳期公羊比成都麻羊相应重67.4g、66.7g和15g,分别提高59.5%、58.9%和13.2%,母羊比成都麻羊相应重41.7g、50.0g和11.2g,分别提高38.5%、46.2%和10.3%。杂种羊日增重在4月龄内都还明显高于成都麻羊, 特别是含波血75%和50%的杂种羊更为突出,保持高速增重时间长,在周岁内日增重公羊是成都麻羊的2.8倍和3.0倍,母羊相应为2.1倍和2.3倍。杂种羊的繁殖性能与成都麻羊比较差异不大。含波血75%,50%和25%的杂种羊的产肉性能与成都麻羊比较提高非常明显,6月龄羯羊的胴体重分别比成都麻羊重5.9kg、5.0kg和2.5kg,屠宰率相应高8.4、6.4和3.8个百分点,净肉率分别高7.9、6.7和4.0个百分点,差异均极显著(P<0.01)。  相似文献   

6.
为了测定波尔山羊与唐山奶山羊杂交后代在秦皇岛地区的产肉性能,对(8~10月龄)波尔山羊的杂交一代羊和杂交二代羊进行屠宰测定,并与同龄唐山奶山羊比较。结果表明,杂交二代羊的屠宰率、净肉率、肉骨比、肌肉重、胴体重、胴体产肉率比杂交一代羊分别提高了9 1367个百分点、9 3618个百分点、30.50%、102.29%、90.58%、5 0008个百分点;比同龄唐山奶山羊分别提高了9 3997个百分点、10 8248个百分点、48.39%、204.59%、172.52%、8 1168个百分点;杂交二代羊的宰前体重、胴体重、胴体产肉率、肉骨比等指标均显著或极显著地高于同龄杂交一代羊和同龄唐山奶山羊(p<0.05或p<0.01),胴体品质有明显的改善。  相似文献   

7.
用口罩法和全收粪、尿法测定了夏、冬季节放牧饲养的成都麻羊日食量、日排粪、尿量。结果表明,成都麻羊日食量、日排粪、尿量,夏季成年母羊分别为1.8675±0.2061kg、0.3882±0.0524kg和0.9488±0.1776kg;育成母羊分别为0.8860±0.0450kg、0.1526±0.0098kg和0.8563±0.1446kg;育成公羊分别为1.2572±0.1141kg、0.2038±0.0564kg和0.7903±0.0753kg。冬季成年母羊分别为2.0112±0.4525kg、0.6628±0.0363kg和0.5544±0.2633kg;育成母羊分别为1.0537±0.1106kg、0.3657±0.0422kg和0.8394±0.3729kg;育成公羊分别为1.5318±0.1771kg、0.4497±0.441kg和0.5835±0.2451kg。不同季节羊之间,不同生长阶段羊之间,不同性别的羊之间均有差异。  相似文献   

8.
成都麻羊产乳量及乳的生化遗传特性研究   总被引:1,自引:4,他引:1  
采用羔羊在每次哺乳前后体重差法测定成都麻羊的产乳量,以M ilk Scan-1340A/B型全自动综合乳质测定仪和聚丙烯酰胺凝胶电泳(PAGE)等方法,分析成都麻羊乳的生化遗传特性.结果表明,羔羊哺乳期母羊产乳量初产母羊为32.05±1.51 kg,经产母羊为46.15±1.78kg;乳中常规营养成分含量,乳脂58.69±2.71g/L,乳蛋白44.18±2.65g/L,乳糖46.44±3.06g/L,总固形物157.88±2.16g/L;电泳分析显示,乳蛋白组分中酪蛋白占优势(70.04±2.55%);乳上皮粘蛋白MUC I在SDS-PAGE上呈现12种基因型,受B、C、D、E、F和G共6个等位基因的控制,其中,FF为优势基因型,F为优势基因.  相似文献   

9.
对草地藏系绵羊和成都麻羊产乳量及乳的生化组成特性进行了比较研究.结果表明:草地藏系绵羊和成都麻羊经产母羊哺乳期的产乳量分别为38.28±1.54kg和46.15±1.78kg,草地藏系绵羊的产乳量极显著低于成都麻羊(P<0.01);乳中总固形物、乳蛋白、乳糖、乳脂分别为169.45±7.52和157.88±2.16g/L、48.45±13.21和44.18±2.65g/L、41.93±5.06和46.44±3.06g/L、69.43±11.41和58.69±2.71g/L,乳中总固形物和乳脂含量草地藏系绵羊均极显著高于成都麻羊(P﹤0.01);乳中4种酶γ-谷氨酰转肽酶(γ-GT)、碱性磷酸酶(AKP)、过氧化物酶(LP)和淀粉酶(AMY)的活力分别为268.25±89.18和194.27±94.33U/100ml、231.85±107.38和305.54±125.12U/100ml、3.97±3.68和5.45±2.81U/ml、80.65±73.91和82.73±69.67U/100ml,草地藏系绵羊乳中γ-GT活力极显著高于成都麻羊(P﹤0.01),而AKP活力极显著低于成都麻羊(P﹤0.01),乳中4种酶的活力个体间差异较大;乳中蛋白主要包括α-乳清蛋白(α-La)、β-乳球蛋白(β-Lg)、酪蛋白(CN)、免疫球蛋白(IgG)等组分,其中酪蛋白为优势蛋白,α-La含量较低,草地藏系绵羊乳中β-Lg含量显著高于成都麻羊(P﹤0.05),SA含量极显著高于成都麻羊(P﹤0.01),而CN含量则极显著低于成都麻羊(P﹤0.01).  相似文献   

10.
成都麻羊牧草消化率动态测定   总被引:2,自引:1,他引:1  
作者研究表明,成都麻羊对牧草中干物质,粗纤维、灰分、粗脂肪、粗蛋白质的消化率,夏季成年母羊分别为78.36%、69.74%、74.06%、55.89%和80.76%,育成母羊分别为82.08%、79.18%、74.88%、57.51%和82.09%,育成公羊分别为83.25%、78.49%、78.84%、64.05%和84.35%;冬季成年母羊分别为66.06%、60.08%、53.04%…、和55.04%,育成母羊分别为64.29%、64.75%、52.05%、…和50.69%,育成公羊分别为69.84%、63.74%、61.36%…和61.81%。其消化率表现出夏季明显高于冬季,育成羊高于成年母羊的规律性。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

15.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

19.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

20.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号