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- Author:
- Myromslien, Frøydis D.; Tremoen, Nina H.; Andersen‐Ranberg, Ina; Fransplass, Ragnhild; Stenseth, Else‐Berit; Zeremichael, Teklu T.; van Son, Maren; Grindflek, Eli; Gaustad, Ann Helen
- Source:
- Reproduction in domestic animals 2019 v.54 no.2 pp. 160-166
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; DNA; DNA fragmentation; Duroc; boars; chromatin; herds; landraces; liquids; litter size; prediction; semen; sows; spermatozoa; Show all 14 Subjects
- Abstract:
- ... The sperm chromatin structure assay is a method for assessment of sperm DNA fragmentation, a parameter reported to be negatively related to field fertility in several mammal species. This method calculates a DNA fragmentation index (DFI) whose high values indicate abnormal chromatin structure. In this study, running from March 2010 until June 2017, the aim was to assess sperm DFI in stored liquid ...
- DOI:
- 10.1111/rda.13322
-
http://dx.doi.org/10.1111/rda.13322
- Author:
- Lopes, TP; Bolarín, A; Martínez, EA; Roca, J
- Source:
- Reproduction in domestic animals 2017 v.52 Suppl S4 pp. 75-77
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; estrus; follicular development; lactation; liquids; litter size; ovarian follicles; semen; sows; spermatozoa; weaning; Show all 11 Subjects
- Abstract:
- ... The study aimed to assess whether altrenogest treatment, fed before weaning (from −8 to −2 days), could improve fertility of sows showing reproductive seasonality. Ninety sows (50 in winter–spring [WS] and 40 in summer–autumn [SA]) were randomly selected and assigned to control (C; 27 in WS and 20 in SA) or altrenogest treatment (A; 23 in WS and 20 in SA) groups. The diameter and number of ovarian ...
- DOI:
- 10.1111/rda.13063
-
http://dx.doi.org/10.1111/rda.13063
- Author:
- Sbardella, PE; Ulguim, RR; Fontana, DL; Ferrari, CV; Bernardi, ML; Wentz, I; Bortolozzo, FP
- Source:
- Reproduction in domestic animals 2014 v.49 no.1 pp. 59-64
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; artificial insemination; boars; estrus; farrowing; farrowing rate; insemination; lactation; litter size; reproductive performance; semen; sows; spermatozoa; ultrasonography; weight loss; Show all 15 Subjects
- Abstract:
- ... The study evaluated the reproductive performance of primiparous sows submitted to post‐cervical insemination (PCAI) compared with cervical artificial insemination (CAI). Difficulty with catheter introduction, the occurrence of bleeding or semen backflow during insemination, and volume and sperm cell backflow up to 60 min after insemination were also evaluated. Sows were homogenously distributed, a ...
- DOI:
- 10.1111/rda.12224
- PubMed:
- 23895197
-
http://dx.doi.org/10.1111/rda.12224
- Author:
- Chen, TY; Lines, D; Dickson, C; Go, C; Kirkwood, RN; Langendijk, P
- Source:
- Reproduction in domestic animals 2016 v.51 no.5 pp. 813-818
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; ad libitum feeding; blood glucose; body weight changes; crude protein; diet; energy balance; energy requirements; farms; glucose; insulin; insulin secretion; late lactation; litter size; milk production; reproductive performance; sows; weaning; wheat; Show all 19 Subjects
- Abstract:
- ... Primiparous (P1) sows commonly lose excessive body reserves to meet energy requirements for maintenance and milk production during lactation, and consequently, post‐weaning reproductive performance may be compromised. The present studies determined whether ad libitum feeding a glucogenic carbohydrate diet (CHO) during late lactation could stimulate insulin and glucose secretion (experiment 1) and ...
- DOI:
- 10.1111/rda.12760
-
http://dx.doi.org/10.1111/rda.12760
- Author:
- Wan, HF; Zhu, JT; Shen, Y; Xiang, X; Yin, HJ; Fang, ZF; Che, LQ; Lin, Y; Xu, SY; Feng, B; Wu, D
- Source:
- Reproduction in domestic animals 2016 v.51 no.1 pp. 135-142
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; calcium; dietary supplements; feed intake; gene expression; genes; insulin-like growth factor I; lactation; landraces; litter size; longissimus muscle; low birth weight; messenger RNA; muscle development; parturition; pregnancy outcome; reproductive performance; skeletal muscle; sows; Show all 19 Subjects
- Abstract:
- ... The effects of dietary β‐hydroxy‐β‐methylbutyrate (HMB) supplementation during gestation on reproductive performance of sows and the mRNA expression of myogenic markers in skeletal muscle of neonatal pigs were determined. At day 35 of gestation, a total of 20 sows (Landrace × Yorkshire, at third parity) were randomly assigned to two groups, with each group receiving either a basal diet or the same ...
- DOI:
- 10.1111/rda.12657
-
http://dx.doi.org/10.1111/rda.12657
- Author:
- Kemp, B; Soede, NM
- Source:
- Reproduction in domestic animals 2012 v.47 Suppl s4 pp. 320-326
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; anestrus; birth weight; estrus; hybrids; lactation; litter size; ovulation; pregnancy; sows; weaning; Show all 11 Subjects
- Abstract:
- ... Normally, sows are in anoestrus during lactation and start their new cycle at the day of weaning. Modern hybrid primiparous sows that suckle large numbers of piglets may lose substantial amounts of body reserves during lactation. This compromises follicle development during lactation. As modern sows have short weaning‐to‐oestrus intervals, these compromised follicles are recruited for ovulation di ...
- DOI:
- 10.1111/j.1439-0531.2012.02092.x
- PubMed:
- 22827387
-
http://dx.doi.org/10.1111/j.1439-0531.2012.02092.x
- Author:
- van Leeuwen, JJJ; Verhoeven, M; van der Heden‐van Noort, I; Kranenbarg, S; Kemp, B; Soede, NM
- Source:
- Reproduction in domestic animals 2012 v.47 no.4 pp. 530-536
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; follicular development; litter size; ovulation; reproductive performance; sows; survival rate; weaning; Show all 8 Subjects
- Abstract:
- ... This study used split‐weaning (SW) to induce differences in follicle size at weaning and study its consequences for follicle development during and after post‐weaning altrenogest feeding and for reproductive performance. Multiparous sows (n = 47) were assigned to SW (n = 23; litter size reduced to the six smallest piglets 3 days before weaning) or control (C; n = 24; normal weaning). Altrenogest ( ...
- DOI:
- 10.1111/j.1439-0531.2011.01913.x
- PubMed:
- 21988454
-
http://dx.doi.org/10.1111/j.1439-0531.2011.01913.x
- Author:
- Vanderhaeghe, C.; Dewulf, J.; Jourquin, J.; De Kruif, A.; Maes, D.
- Source:
- Reproduction in domestic animals 2011 v.46 no.3 pp. 428-433
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; farrowing; gestation period; litter size; pregnancy; reproductive performance; retrospective studies; sows; Show all 8 Subjects
- Abstract:
- ... A retrospective study, based on 60 990 farrowing records from 35 commercial herds, was performed to determine the incidence of early parturition (<114d) and to investigate the relationship between early parturition and total number of piglets born, number of piglets born alive and percentage of stillborn piglets per litter. The mean gestation length was 115.4 ± 1.62d, and early parturition occurre ...
- DOI:
- 10.1111/j.1439-0531.2010.01685.x
- PubMed:
- 20825588
-
http://dx.doi.org/10.1111/j.1439-0531.2010.01685.x
- Author:
- Werlang, RF; Argenti, LE; Fries, HCC; Bernardi, ML; Wentz, I; Bortolozzo, FP
- Source:
- Reproduction in domestic animals 2011 v.46 no.5 pp. 818-823
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; breeding; estrus; farrowing rate; genotype; lactation; litter size; reproductive performance; sows; weaning; weaning weight; weight gain; Show all 12 Subjects
- Abstract:
- ... This study investigated the effects of breeding at the second oestrus after weaning or after feeding an orally active progestagen (altrenogest) on the subsequent reproductive performance of primiparous sows. After 3 weeks of lactation, 663 weaned sows of two genotypes were allocated into three groups: G1 – breeding at the first oestrus after weaning; G2 – breeding at the second oestrus after weani ...
- DOI:
- 10.1111/j.1439-0531.2010.01747.x
- PubMed:
- 21323753
-
http://dx.doi.org/10.1111/j.1439-0531.2010.01747.x
- Author:
- van den Brand, H.; van Enckevort, LCM; van der Hoeven, EM; Kemp, B.
- Source:
- Reproduction in domestic animals 2009 v.44 no.6 pp. 884-888
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; birth weight; diet; glucose; lactation; lactose; litter size; reproductive performance; sows; Show all 9 Subjects
- Abstract:
- ... Effects of dextrose plus lactose in sow's feed were tested on subsequent reproductive performance and within litter birth weight variation. During the last week of gestation and lactation, sows were either fed a commercial lactation diet (Control: C), or an isocaloric diet containing 25 g/kg dextrose plus 25 g/kg lactose (Treatment: T). In the subsequent weaning-to-oestrus interval (WEI), all sows ...
- DOI:
- 10.1111/j.1439-0531.2008.01106.x
- PubMed:
- 19426401
-
http://dx.doi.org/10.1111/j.1439-0531.2008.01106.x
- Author:
- Kemp, B; Soede, NM
- Source:
- Reproduction in domestic animals 2012 v.47 Suppl s5 pp. 51-57
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; crushing; early lactation; estrus; farrowing; farrowing rate; feed intake; group housing; litter size; loose housing; mortality; pregnancy; reproductive performance; risk; sows; Show all 15 Subjects
- Abstract:
- ... In Europe, housing conditions of sows are currently changing, related with a larger emphasis on pig welfare. As a result, sows are and will be less kept in crates, but more so in loose housing systems (farrowing, lactation) and group housing systems (pregnancy, lactation, weaning‐to‐oestrus interval). These changes in housing conditions may affect reproductive functioning of the sows. Group housin ...
- DOI:
- 10.1111/j.1439-0531.2012.02108.x
- PubMed:
- 22913560
-
http://dx.doi.org/10.1111/j.1439-0531.2012.02108.x
- Author:
- Wu, YP; Wang, AG; Li, N.; Fu, JL; Zhao, XB
- Source:
- Reproduction in domestic animals 2010 v.45 no.6 pp. 1028-1032
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; Large White; endometrium; genes; introns; least squares; litter size; loci; models; pregnancy; reproductive performance; single nucleotide polymorphism; sows; Show all 13 Subjects
- Abstract:
- ... As a multifunctional cytokine, transforming growth factor‐beta1 (TGF‐β1) was detected in the utero‐placental interface during early pregnancy in the pig and believed to enhance trophoblast attachment to the endometrium. In this experiment, we selected TGF‐β1 as the candidate gene affecting litter size in pigs. Four polymorphic loci of TGF‐β1 gene were found by PCR‐SSCP (single‐strand conformation ...
- DOI:
- 10.1111/j.1439-0531.2009.01480.x
- PubMed:
- 20088852
-
http://dx.doi.org/10.1111/j.1439-0531.2009.01480.x
- Author:
- Vanderhaeghe, C.; Dewulf, J.; Daems, A.; Van Soom, A.; de Kruif, A.; Maes, D.
- Source:
- Reproduction in domestic animals 2008 v.43 no.4 pp. 484-489
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; cloprostenol; commercial farms; farrowing; litter size; mortality; progesterone; reproductive performance; sows; weight gain; Show all 10 Subjects
- Abstract:
- ... During the previous decade several studies focused on postpartum treatment with prostaglandin for improvement of reproductive performance in sows. The aim of the study was to investigate the effect of administration of a prostaglandin F₂α (PGF₂α) analogue in sows within 24-48 h after farrowing on sow and litter performance. In five commercial farms, the sows were randomly assigned to either treatm ...
- DOI:
- 10.1111/j.1439-0531.2007.00942.x
- PubMed:
- 18282217
-
http://dx.doi.org/10.1111/j.1439-0531.2007.00942.x
- Author:
- Alm, K.; Peltoniemi, OAT; Koskinen, E.; Andersson, M.
- Source:
- Reproduction in domestic animals 2006 v.41 no.3 pp. 210-213
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; artificial insemination; boars; commercial farms; insemination; litter size; sows; spermatozoa; Show all 8 Subjects
- Abstract:
- ... In swine artificial insemination, several dose regimens are applied, ranging from 1.5 x 10⁹ to 6.0 x 10⁹ spermatozoa per intra-cervical insemination dose. A lower sperm dose is more profitable for artificial insemination centres and offers a more effective use of superior boars. To evaluate fertility, 50 boars were used for a total of 10 773 homospermic first inseminations at a dose of 2 billion s ...
- DOI:
- 10.1111/j.1439-0531.2005.00670.x
- PubMed:
- 16689883
-
http://dx.doi.org/10.1111/j.1439-0531.2005.00670.x
- Author:
- Spötter, A.; Hamann, H.; Müller, S.; Distl, O.
- Source:
- Reproduction in domestic animals 2010 v.45 no.4 pp. 579-584
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; Duroc; German Landrace; Large White; Meishan; Pietrain; embryogenesis; expressed sequence tags; genes; litter size; mitogen-activated protein kinase; polymerase chain reaction; single nucleotide polymorphism; sows; vascular endothelial growth factor receptors; Show all 15 Subjects
- Abstract:
- ... We carried out an SNP discovery project in pigs for candidate genes playing potentially important roles in embryonic development. Using eight pigs one each from eight breeds (Meishan, Mangalitza, Duroc, Pietrain, German Landrace, Hampshire, Husum Red Pied, German Large White), 36 SNPs were identified in intronic sequences of 21 porcine candidate genes based on sequencing of PCR products. The prime ...
- DOI:
- 10.1111/j.1439-0531.2008.01304.x
- PubMed:
- 19090827
-
http://dx.doi.org/10.1111/j.1439-0531.2008.01304.x
- Author:
- Distl, O.
- Source:
- Reproduction in domestic animals 2007 v.42 no.s2 pp. 10-16
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; DNA; fecundity; genes; genetic markers; heritability; industry; litter size; marker-assisted selection; microarray technology; ovulation; quantitative trait loci; sows; swine breeds; uterus; Show all 15 Subjects
- Abstract:
- ... Improvement in litter size has become of great interest in pig industry as good fecundity is directly related to a sow's productive life. Genetic regulation of litter size is complex and the main component traits so far defined are ovulation rate, embryonic survival, uterus capacity, foetal survival and pre-weaning losses. Improvements using concepts of the quantitative genetics let expect only sl ...
- DOI:
- 10.1111/j.1439-0531.2007.00887.x
-
http://dx.doi.org/10.1111/j.1439-0531.2007.00887.x
- Author:
- Kaeoket, K.
- Source:
- Reproduction in domestic animals 2006 v.41 no.5 pp. 472-476
- ISSN:
- 0936-6768
- Subject:
- piglets, etc ; sows; parturition; synthetic prostaglandins; application methods; dosage; stereoisomers; parity (reproduction); farrowing; oxytocin; maternal behavior; duration; litter weight; birth weight; fetal death; litter size; cloprostenol; Show all 17 Subjects
- Abstract:
- ... The aims of the present study were to further examine the efficacy of different doses and routes of R-cloprostenol administration on the parturition response in sows. Fifty crossbred multiparous sows (Landrace x Yorkshire) with an average parity number of 4.7 ± 2.4 were allocated to induce farrowing by one of the following treatments: Group I (control, n = 10) injection with normal saline 2 ml adm ...
- DOI:
- 10.1111/j.1439-0531.2006.00674.x
- PubMed:
- 16984355
-
http://dx.doi.org/10.1111/j.1439-0531.2006.00674.x