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Advanced Research in Intrauterine Growth-Restricted Pigs and Low Birth Weight...
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Advanced Research in Intrauterine Growth-Restricted Pigs and Low Birth Weight Pigs

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Pigs".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 6267

Special Issue Editors

Dr. Charlotte Amdi Williams

E-Mail Website
Guest Editor
Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
Interests: pig nutrition; pig physiology; growth and development; muscle biology
Special Issues, Collections and Topics in MDPI journals
Dr. Johannes Gulmann Madsen

E-Mail Website
Guest Editor
Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
Interests: pig nutrition; pig physiology; growth and development; muscle biology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In modern pig production, hyperprolific sows have resulted in large litters, with more piglets being exposed to intrauterine growth restriction (IUGR). This challenges the welfare of the pigs, as well as their growth and management, and has increased piglet mortality. There are therefore some considerations that need to be addressed with large litters in order to utilize the full potential of the hyperprolific sow and increase the survival rate of IUGR piglets. Management interventions through nutrition, extra care, nurse sows, etc. can be useful tools to increase the survival rates and well-being of IUGR piglets. Additionally, the prevention of IUGR through adequate nutrition during gestation should be addressed further.

Original manuscripts that address any aspects of IUGR in piglets, either defined by their morphology or birth weight, are invited for this Special Issue. In particular, aspects such as difference in metabolism, management tools, preventing IUGR pigs through sow nutrition, and issues regarding practical implications in commercial farms are welcome.

Dr. Charlotte Amdi Williams
Dr. Johannes Gulmann Madsen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • intrauterine growth restriction
  • intrauterine growth retardation
  • piglet mortality
  • hyperprolific sows

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Published Papers (2 papers)

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Research

14 pages, 1014 KiB  
Article
Association between Head-to-Chest Circumference Ratio and Intrauterine Growth-Retardation Related Outcomes during Preweaning and Postweaning
by Diego Manriquez, Guilhem Poudevigne, Etienne Roche and Agnes Waret-Szkuta
Animals 2022, 12(12), 1562; https://doi.org/10.3390/ani12121562 - 17 Jun 2022
Cited by 1 | Viewed by 1724
Abstract
The objective of this study is to evaluate the association between the head-to-chest circumference ratio (HCR) and birth weight (BW), colostrum intake, and average daily weight gain (ADG) at preweaning and postweaning periods. Additionally, associations between HCR and PCV-2 serum antibody titers and [...] Read more.
The objective of this study is to evaluate the association between the head-to-chest circumference ratio (HCR) and birth weight (BW), colostrum intake, and average daily weight gain (ADG) at preweaning and postweaning periods. Additionally, associations between HCR and PCV-2 serum antibody titers and the PCV-2 seroconversion ratio (SCR) were assessed. Head and chest circumferences were measured at birth, and HCR was calculated from 110 piglets born from 8 pregnant sows randomly selected from maternity pens. Linear mixed models were used to test whether changes in HCR were associated with fluctuations of BW, colostrum intake, and ADG. In addition, HCR least-square means were compared between piglets classified as lower or greater BW, colostrum intake, and ADG. Finally, receiving operating characteristic curve analyses were performed to estimate HCR thresholds for discriminating between lower and greater performance piglets during preweaning and postweaning periods. Increments in HCR were associated with lower BW, colostrum intake, and ADG. An HCR threshold of 0.82 maximized sensibility and specificity for the classification of lower and greater performance piglets regarding BW, colostrum intake, and ADG during the periods of 0 to 7 and 0 to 69 days of life. When piglets were categorized into HCR ≤ 0.82 and HCR > 0.82 groups, piglets with HCR ≤ 0.82 had lower (log10) PCV-2 serum antibody titers at 26 days of life compared with piglets with HCR > 0.82 (3.30 ± 0.05 vs. 3.47 ± 0.05 g/dL). On the other hand, piglets that showed low SCR between 26 and 69 days of life had greater HCRs compared with piglets with high SCRs (0.83 ± 0.008 vs. 0.8 ± 0.008). The use of HCRs allowed us to identify piglets with lower performance and impaired immune response against PCV-2. The HCR indicator could be used as a selection criterion for preventive management for piglets showing delayed performance potentially associated with IUGR. Full article
(This article belongs to the Special Issue Advanced Research in Intrauterine Growth-Restricted Pigs and Low Birth Weight Pigs)
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17 pages, 949 KiB  
Article
Identifying Risk Factors for Low Piglet Birth Weight, High Within-Litter Variation and Occurrence of Intrauterine Growth-Restricted Piglets in Hyperprolific Sows
by Kristina V. Riddersholm, Ida Bahnsen, Thomas S. Bruun, Leonardo V. de Knegt and Charlotte Amdi
Animals 2021, 11(9), 2731; https://doi.org/10.3390/ani11092731 - 18 Sep 2021
Cited by 24 | Viewed by 3714
Abstract
This study aimed to identify risk factors affecting PBW, high CVPBW and the occurrence of IUGR piglets in 12 commercial Danish herds with hyperprolific sows using free-access stalls, floor or electronic sow feeding systems in the gestation unit. The following factors were [...] Read more.
This study aimed to identify risk factors affecting PBW, high CVPBW and the occurrence of IUGR piglets in 12 commercial Danish herds with hyperprolific sows using free-access stalls, floor or electronic sow feeding systems in the gestation unit. The following factors were investigated: the duration of previous lactation, the length of the interval from weaning to insemination, the length of gestation, litter size, parity, sow backfat thickness in late gestation and the type of feeding system in the gestation unit. The study included newborn piglets from 452 litters with the following production indicator averages: 21.3 piglets/L, 1235 g PBW, 22.9% CVPBW and 10.9% and 11.8% within-litter occurrence of severe and mild IUGR piglets, respectively. Increasing length of weaning-to-insemination interval decreased PBW by 25.8 g/day. For 2nd to 9th parity sows, each additional piglet in the litter increased CVPBW by 0.38%, the occurrence of severe IUGR piglets by 0.68% and mild IUGR piglets by 0.50%. Sows of 5th parity and older had a 1.39% higher CVPBW and 49.1 g lighter piglets compared with sows of 2nd to 4th parity. PBW was lower in one ESF herd, suggesting complex interactions that need to be further elucidated. The main critical risk factor observed was litter size. Full article
(This article belongs to the Special Issue Advanced Research in Intrauterine Growth-Restricted Pigs and Low Birth Weight Pigs)
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