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171篇 您的检索式:作者名="Hansen C F"
    题名 作者 年代 出处 被引量
1高产奶量的母猪有更高的采食量和体动员显示文摘选择能哺育更大窝产仔数的超高产母猪以提高产仔数,但是综合考虑这些现代母猪产奶量、采食量和体动员相互之间联系的研究还很有限。试验旨在研究什么样的母猪产奶量高、窝产仔数多,不同胎次有何影响,以及哺乳期生产性能对下一胎繁殖性能有何影响。选择565头1~4胎母猪,试验期从产前7 d至断奶。产后第2天每窝仔猪统一调整为14头。产前7 d、产后第2天和断奶时测定母猪体重和背膘厚度。产后第2天和断奶时称取仔猪窝重。计算变量之间的皮尔森相关系数,建立回归模型。母猪的平均日采食量(6.1±1.1)kg,仔猪每天窝增重(2.92±0.53)kg,每头母猪的平均断奶仔猪数(13.0±1.1)头。总的来讲,与2~4胎母猪相比,1胎母猪平均日采食量和产奶量更低,下一胎总产仔数也下降,这可能是因为初产母猪相比经产母猪会动用更多体储。仔猪每窝平均日增重与母猪的采食量、窝产仔数和体重损失呈正相关。1~4胎母猪整个哺乳期日采食量每提高1 kg,仔猪窝日增重提高220~440 g,母猪哺乳期体重下降6.6~13.9 kg。但是每天平均产奶量提高1 kg,第4胎母猪哺乳期体重损失减少4.3~21.0 kg。下一胎总产仔数与上一胎产仔数呈正相关。总之,高采食量和高体动员是高产奶量的先决条件。母猪可能已经非常接近他们身体饲料摄取的生理极限,因此,未来的研究应着眼于优化哺乳期超高产母猪的饲粮能量和营养浓度以及初产母猪和经产母猪之间的区别。Strathe A V Bruun T S Hansen C F 李元凤 2017养猪2017,,4:8
2含有菊粉但不含羽扇豆的饲粮有助预防实验诱导的猪痢疾显示文摘猪痢疾是一种传染性黏膜出血的腹泻疾病,由定植于肠道的猪痢疾短螺旋体引起,能够诱发盲肠和结肠发炎。据报道饲料中添加菊苣根和甜羽扇豆可预防猪痢疾。本试验旨在验证是菊苣根中的菊粉而不是羽扇豆中的半乳糖起到保护作用的假设。Hansen C F Phillips N D La T.(等) 闫轶洁(译) 2010养猪2010,,6:2
3Crisis in corporate America:The role of strategy 显示文摘HANSEN F D SMITH M C 2003Business Horizons2003,15,1:1
4Cyclic AMP induced neuronal differentiation via activation of p38 mitogen-activated protein kinase显示文摘Hansen T O Rehfeld J F Nielsen F C 2000J Neurochem2000,75,5:1
5Capture of benzotriazole based Mannieh electrophiles by CH-acidic corn pounds显示文摘Monbaliu J C M Beagle L K Hansen F K 2013RSC Advances2013,3,13:1
6Real-lime illustration of vascular structures 显示文摘Ritter F Hansen C Dicken V 2006IEEE Transactions on Visualization and Computer Graphics2006,12,5:1
7Particle interaction effects in antiferromagnetic NiO nanoparticles 显示文摘Bodker F Hansen M F Bender Koch C 2000Journal of Magnetism and Magnetic Materials2000,,221:1
8Caudal ropivacaine in infant : population pharmacokinetics and plasma concentrations 显示文摘HANSEN T G ILETI' K F EID C 2001Anesthesiology2001,94,4:1
9Silicate pneumoconiosis in camels显示文摘Hansen H J Jama F M Nilsson C 1989J Vet Med series A1989,36,10:1
10Feeding organic acids enhances the barrier function against pathogenic bacteria of the piglet stomach 显示文摘HANSEN C F RIIS A L BRESSON S 2007Live- stock Science2007,108,123:1
11Phosphomannose isomerase:an efficient selectable marker for plant transformation显示文摘Reed J Privallel L Powell M L Meghji M Dawson J Dunder E Suttie J Wenck A Launis K Kramer C Chang Y F Hansen G Wright M 0,,:1
12Enzymatic conversion of D-galactose to D-tagatose:heterologous expression and characterization of a thermmostablle Larabinose isomerase from Thermoanaerobacter mathranii显示文摘Jorgensen F Hansen O C Stougaard P 200470:1397~14042004,70,:1
13Regulation of neuronal cholecy stokinin gene transcription 显示文摘Hansen T V Nielsen F C 2001Scand J Clin Lab Invest Suppl2001,234,:1
14Identification and characterization of some bacterial membrane sulfhydryl groups which are targets of bacteriostatic and antibiotic action显示文摘MORRIS S L WALSH F C HANSEN J N 1984Biol Chem1984,259,13:1
15Advanced Discrete Wavelet Transform Fusion Algorithm and Its Optimization by Using the Metric of Image Quality Index 显示文摘Zheng Y F Edward A Essock Bruce C Hansen 2005Optical Engineering2005,44,3:1
16Glucagon-like peptide-1 (7-36)amide is transformed to glucagon-like peptide-1 (9-36)amide by dipeptidyl peptidase IV in the capillaries supplying the I cells of porcine intestine显示文摘Hansen I Deacon C F Orskov C 1999Endocrinology1999,140,:1
17Long-term outcome of children following maternal human parvovirus B19 infection显示文摘Rodis J F Rodner C Hansen A A 1998Obstet Gynecol1998,91,1:1
18Lysis-induced decline of a Phaeocystis spring bloom and coupling with the microbial food web 显示文摘van Boekel W H M Hansen F C Riegman R 1992Marine Ecology Progress Series1992,81,:1
19A new metric based on extended spatial frequency and its application to DWT based fusion algorithms显示文摘Zheng Y F Essock E A Hansen B C 2007In- formation Fusion2007,8,2:1
20Retinoids in chemoprevention and differentiation therapy显示文摘Hansen L A Sigman C C Andreola F 2000Carcinogenesis2000,21,7:1
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