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| 1 | Mammary gland growth and vascularity at parturition and during lactation in primiparous ewes fed differing levels of selenium and nutritional plane during gestation显示文摘Background: Objectives were to examine the effects of selenium(Se) supply and maternal nutritional plane during gestation on mammary gland growth, cellular proliferation, and vascularity at parturition and d 20 of lactation. Rambouillet primiparous ewes(n = 84) were allocated to treatments in a 2 x 3 factorial. Factors were dietary Se(adequate Se [ASe, 11.5 μg/kg BW] or high Se [HSe, 77.0 μg/kg BW]) and nutritional plane(60% [RES], 100% [CON], or 140% [EXC]). At parturition, lambs were removed and 42 ewes(7/treatment) were necropsied. Remaining ewes were fed a common diet meeting requirements for lactation and mechanically milked twice daily until necropsy on d 20. At both necropsy periods, mammary glands were dissected and tissues harvested. Samples were analyzed for RNA, DNA, and protein content, cell proliferation, and vascularity. Where interactions were present(P ≤ 0.05), least squares means from the highest-order interaction are presented. Results: Final body weight of ewes was least(P ≤ 0.002) in RES, intermediate for CON, and greatest for EXC, regardless of stage of the ewe at necropsy(parturition or d 20 of lactation). In ewes necropsied at parturition, mammary glands were heavier(P = 0.02) in EXC compared to RES, with CON intermediate. Concentration of RNA(mg/g) was decreased(P = 0.01) in EXC compared to CON at parturition. There was a tendency(P = 0.07) for a Se by nutrition interaction in percentage of cells proliferating where ASe-EXC ewes had greater(P ≤ 0.02) number of proliferating cells then all other treatments. Mammary vascular area tended(P = 0.08) to be affected by a Se by nutrition interaction where ASe-CON had less(P = 0.007) vascular area than HSe-CON ewes. In ewes necropsied at d 20 of lactation, the number of alveoli per area was decreased(P ≤ 0.05) in RES compared to CON and EXC-fed ewes. Conclusions: Results of this study indicate that proper maternal nutritional plane during gestation is important for mammary gland development, even out to d 20 of lactation. | Tammi L Neville Allison M Meyer Arshi Reyaz Pawel B Borowicz Dale A Redmer Lawrence P Reynolds Joel S Caton Kimberly A Vonnahme | 2013 | Journal of Animal Science and Biotechnology2013，4，4： | 3 |
| 2 | The Interaction among Multiple Governance Mechanisms in Young Newly Public Irms 显示文摘 | Tammy K Berry Fields L Paige Wilkins Michael S | 2006 | Journal of Corporate Finance2006，12，3： | 1 |
| 3 | Combing new technologies for determination of phytoplankton community structure in the northern gulf of Mexico显示文摘 | JASON H S LISA C TAMMI L R | 2005 | Journal Plankton2005，41，： | 1 |
| 4 | Mesenchymal stem cells inhibit and stimulate mixed lymphocyte cultures and mitogenic responses independently of the major histocompatibility complex显示文摘 | Le Blanc K Tammi L Sundberg B | 2003 | Scand J Immonol2003，57，1： | 1 |
| 5 | Merchenthaler,Istvan Estrogen binding sites and their functional capacity in estrogen receptor double knockout mouse brain显示文摘 | Askew G Roger Dellovade Tammy L | 2002 | Endocrinology2002，143，5： | 1 |
| 6 | Use of WL medium to profile native flora fermentations显示文摘 | CHRISTINA L P JAMES A B TAMMI L O | 2001 | American Journal of Enology and Viticulture2001，52，3： | 1 |
| 7 | C3 plants en- hance rates of photosynthesis by reassimilating photorespired and respired COe 显示文摘 | Florian A B Tammy L S Rowan F S | 2013 | Plant Cell and Environment2013，36，： | 1 |
| 8 | 3D-finite element model of meniscectomy: changes in joint contact behavior显示文摘 | Barbara Zielinska Tammy L Haut Donahue | 2006 | Journal of Biomechanical Engineering2006，128，： | 1 |
| 9 | Expression of CD44 and its variant isoform v3 has no prognostic value in gastric cancer 显示文摘 | Setala L Lipponen P Tammi R | 2001 | Histopatholog2001，38，1： | 1 |
| 10 | The Interaction among Multiple Governance Mechanisms in Young Newly Public Firms显示文摘 | Tammy K Barry L Paige Fields Michael S Wilkins | 2006 | Journal of Corporate Finance2006，12，3： | 1 |
| 11 | Expression of CD44 and its variant isoform v3 has no prognostic value in gastric cancer显示文摘 | Setala L Lipponen P Tammi R | 2001 | Histopathology2001，38，1： | 1 |
| 12 | Transcriptional regulation of the 4-nmino4-deoxy-l-arabinose biosynthetic genes in Yersinia pestis显示文摘 | Mollie DW Tammy L Eduardo G | 2005 | JBC2005，280，14： | 1 |
| 13 | A finite element modal of the human knee joint for the study of tibia-femoral contact 显示文摘 | Tammy L Haut D Hull M L | 2002 | Journal of Biomechanical Engineering2002，124，： | 1 |
| 14 | Sonic Hedgehog Is Required for Progenitor Cell Maintenance in Telencephalic Stem Cell Niches显示文摘 | Robert Machold Shigemi Hayashi Michael Rutlin Mandar D Muzumdar Susana Nery Joshua G Corbin Amel Gritli-Linde Tammy Dellovade Jeffery A Porter Lee L Rubin Henryk Dudek Andrew P McMahon Gord Fishell | 2003 | Neuron2003，，1： | 1 |
| 15 | Ac-cumlationof Cholesteralwith Agein Human Bruch's Mem-brance显示文摘 | Christine A Curcio C L Tammy B | 2001 | Invest Opthalmol Vis Sci2001，42，： | 1 |
| 16 | Angiostatin binds ATP synthase on the surface of human endothelial cells 显示文摘 | Tammy L Moser M Sharon Stack Iain Asplin | 1999 | Proc Natl Acad Sci USA1999，96，6： | 1 |
| 17 | How do mainland Chinese travelers choose restaurants in Hong Kong? An exploratory study of individual visit scheme travelers and packaged travelers 显示文摘 | Rob L Tammy T & Carey G | 2008 | International Journal of Hospitality Managemt2008，27，3： | 1 |
| 18 | A finite element modal of the human knee joint for the study of tibia-femoral contact 显示文摘 | Tammy L Haut D Hull M L | 2002 | Journal of Biomechanical Engineering2002，124，： | 1 |
| 19 | A finite element model of the human knee joint for the study of Tibio-Femoral contact显示文摘 | Tammy L Haut Donahue M L Hull | 2002 | Journal of Biomechanical Engineering2002，124，3： | 1 |
| 20 | Hyaluronan expression in differentiated thyroid carcinoma显示文摘 | Bohm J Niskanen L Tammi R | 2002 | J Pathol2002，196，2： | 1 |
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