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PPl1 TRANSCRIPTIONAL, POST.TRANSCRIPTIONAL, AND EPIGENETIC CONTROL OF PORCINE OOCYTE MATURATION AND EMBRYOGENESIS R.S. Pratherl, J.W. Ross2, S.C. Isoml, and J.A. Greenl tDivision of Animal Sciences, university of Missouri, columbia, Mo 65211, usA, 2Depaftment of Animal science, Iowa siate university, Ames, IA 50011, usA E-mail : PratherR @ Missouri.Edu Embryogenesis is a complex process that is controlled at various levels. As new discoveries are made about molecular mechanisms that control development in other species, it is apparent that these same mechanisms regulate pig embryogenesis as well. Methylation of DNA and modification of histones regulate transcription, and mechanisms such as ubiquiti nization, autophagy, and microRNAs regulate development post-transcriptionally. Each of túese systems of regulation is highly dynamic in the early embryo. A better understanding of each of these levels of regulation can provide tools to potentially improve the reproductive process in pigs, to improve methods of creating pig embryos and cloned embryos iniitro, and tò provide markers for predicting developmental competence of the embryo.
PP12 OVARIAN RESPONSES TO LACTATION MANAGEMENT STRATEGIES N.M. Soeder, W. Hazelegerl, R. Gerritsen2, p. Langendijk3, and B. Kempr rAdaptation Physillogy Group, PO Box 338 6700 AH Wageningen University, Wageningen, The Netherlands; 2 Current address: Schothorst Feed Research, ielystfi; tiÃlinr ñvesrock, Roseworthy Campus, South Australia E-mail: nicoline.soede @ wur.nl A number of lactation management srategies can be applied to reduce negative effects of lactation on post-weaning fertility. This paper focuses on efìåcts of lactation lenlgth, intermittent suckling and split weaning on follicle development and subsequent oestrus. It is concluded that a lactation length of less than 3 weeks still leads to suboptimal reproductive performance in our modern sows. Further, both intermittent suckling and spiit weaning stimulatË lactational follicle development and oestrus, but the variation in response between sows still limits practical application. 61
Page 2 and 3: ø fHç VIII'h International Confer
Page 4 and 5: WELCOME FROM THE INTERNATIOIYAL ORG
Page 6: ___--:| WELCOME FROM THE DEPARTMENT
Page 9 and 10: SPONSORS Platinum Ø Wr"ffil"^Anima
Page 11 and 12: GENERAL INFORMATION
Page 13 and 14: MAP OF BANFF CENTRE rl+¡.f,¡lla @
Page 15 and 16: CONFERENCE PROGRAM suNDAY, MAY 31.t
Page 17 and 18: l5:00 - 15:30 General Discussion Br
Page 19 and 20: I ) ) ) ) ) ) ) ) ) I I I l3:30 - 1
Page 21 and 22: Breakout Session #6 "state-of-the A
Page 23 and 24: TRANSCRIPTIONAL, POST.TRANSCRIPTION
Page 25 and 26: ESTROGBN AND INTERLEUKIN-IP RBGULAT
Page 27 and 28: COMPARISON OF NUCLEOCOUNTER SP1OO A
Page 29 and 30: ISOLATION OF PORCINE EMBRYONIC STEM
Page 31 and 32: PROSTAGLANDIN ASSOCIATED WITH OXYTO
Page 33 and 34: ABSTRACTS OF INVITED PAPERS 37
Page 35 and 36: PP2 MOLECULAR KINETICS OF PROTEINS
Page 37 and 38: PP4 RECENT ADVANCES IN BOAR SEMEN C
Page 39 and 40: PP6 THE ROLE OF GENE DISCOVERY, QTL
Page 41 and 42: PP8 NUTRITIONAL AND LACTATIONAL EFF
Page 43: I I I I I PPlO I I INTRA.FOLLICULAR
Page 47 and 48: PP1.4 PRENATAL PROGRAMMING OF POSTN
Page 49 and 50: PP16 FUNCTIONAL GENOMIC APPROACHES
Page 51 and 52: PP18 GROWTH, BODY STATE, AND BREEDI
Page 53 and 54: PP2O ANTILUTEOLYTIC MECHANISMS AND
Page 55 and 56: ABSTRACTS OF SHORT ORAL PRESENTATIO
Page 57 and 58: cells detected in both medium A and
Page 59 and 60: expected during production of semen
Page 61 and 62: 7.1-fold), TNF-u (AH: 1.9-fold) and
Page 63 and 64: colloids respectively, there was no
Page 65 and 66: for total teat number on SSC5 (57 c
Page 67 and 68: and interact with various receptors
Page 69 and 70: at weaning, follicle size at the st
Page 71 and 72: day 1d of weaning (d 0). Sow had no
Page 73 and 74: Table 1: Reproductive Characteristi
Page 75 and 76: stromal and glandular cells (Soloff
Page 77 and 78: TABLE 1: Differentially expressed p
Page 79 and 80: inding protein 1 (LIMAI) and a hypo
Page 81 and 82: Table 1: Germ cell enrichment by di
Page 83 and 84: Overall, the expression of Nanog, O
Page 85 and 86: GT treatment may reflect the very s
Page 87 and 88: Table 1: Untreated control sow inse
Page 89 and 90: Table 1: Number and percent of gilt
Page 91 and 92: SLC2A2 mRNA was most abundant in co
Page 93 and 94: 2st-6 THE EFFECT OF TIMING OF hCG A
Page 95 and 96:
251-8 PROTECTIVE EFFECT OF PSP.VII
Page 97 and 98:
251-10 RELATION BETWEEN NUMBER OF S
Page 99 and 100:
25t-12 EVALUATION OF BOAR SEMEN FER
Page 101 and 102:
25t-14 COMPARISON OF NUCLEOCOUNTER
Page 103 and 104:
251-16 EFFECT OF BOAR SEMINAL PLASM
Page 105 and 106:
251-18 CAN POST.THAW SPERM SURVIVAL
Page 107 and 108:
251-20 INTRA.CERVICAL PIG AI WITH T
Page 109 and 110:
252-tt BIRTH WEIGHT IMPLICATIONS FO
Page 111 and 112:
2s2-13 DIFFERENTIAL EXPRESSION AND
Page 113 and 114:
252-15 DIFFERENTIAL micToRNA EXPRES
Page 115 and 116:
252-17 EXPRESSION OF HOXA1O IN BARL
Page 117 and 118:
2s2-19 EFFECT OF INTRAUTERINE CRO\r
Page 119 and 120:
252-21 DEVELOPMENT OF NEONATAL PIGL
Page 121 and 122:
)
Page 123 and 124:
)
Page 125 and 126:
252-27 ESTROGEN RECEPTORS COLOCALIZ
Page 127 and 128:
)0.05). These results were not sign
Page 129 and 130:
252-31 EFFECT OF EMPTY UTERINE SPAC
Page 131 and 132:
253-3 EFFECT OF SYNCHRONIZING OVULA
Page 133 and 134:
253-7 EFFECT OF EARLY LIFE STRESSOR
Page 135 and 136:
2s3-9 RELEVANCE OF LOCAL PROGESTERO
Page 137 and 138:
253-11 CONJUGATED LINOLEIC ACIDS (C
Page 139 and 140:
253-13 FACTORS ASSOCIATED WITH REDU
Page 141 and 142:
253-15 TIMED INSEMINATION FOLLOWING
Page 143 and 144:
2s3-17 ULTRASONOGRAPHIC COUNTING OF
Page 145 and 146:
253-19 GENISTEIN ALTBR THE RELEASE
Page 147 and 148:
253-21 DIETARY INTAKE DT]RING EARLY
Page 149 and 150:
2s3-23 IMPROVING FERTILITY AND SAVI
Page 151 and 152:
2s3-2s EFFECTS OF DAY OF FARROWING
Page 153 and 154:
253-27 EFFECT OF CHRONOLOGICAL AND
Page 155 and 156:
253-29 EFFECT OF SUPPLEMENTING GILT
Page 157 and 158:
253-31 REPRODUCTIVE RESPONSES OF SO
Page 159 and 160:
G Gabilondo, D.,137 Gadella, 8.,47
Page 161:
V Valette,8.,737 Vøllet, J., 71, 1
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