Document Detail


Effect of maternal activity during gestation on maternal behavior, fetal growth, umbilical blood flow and farrowing characteristics in pigs.
MedLine Citation:
PMID:  23148241     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Yorkshire gilts either remained in their individual stall from d 40 to term (CON; n = 7), or were subjected to exercise for 30 min 3 times per week from mid to late gestation (EX; n = 7) to determine the impact of increased maternal activity during gestation on maternal behavior, fetal growth, umbilical blood flow, and parturition, In parity 1, maternal body composition (10th rib backfat and longissimus muscle area), maternal behavior, and farrowing characteristics were recorded. In parity 1 and 2, fetal growth, fetal heart rate, pulsatility index and resistance index, and umbilical blood flow were monitored beginning at d 39 of gestation continuing to d 81 of gestation. Exercise continued until d 104. Gilts allowed to exercise sat less (P < 0.01), stood more (P < 0.01), tended (P = 0.06) to lie down less, and had fewer postural changes (P < 0.01) compared to CON gilts. Umbilical blood flow increased (P < 0.01) in EX compared to CON gilts. Moreover, gilts had greater (P < 0.01) umbilical blood flow in their first parity compared to their second. Indices of vascular resistance was not affected (P ≥ 0.15) by maternal treatment, however EX gilts reached peak pulsatility index earlier than CON gilts (56.2 vs. 64.3 ± 3.6 d). Fetal weights, piglet birth weights, placental weight, interval between piglet births, and blood lactate of newborn piglets were unaffected (P ≥ 0.15) by maternal treatment. While maternal exercise during gestation in the pig increased umbilical blood flow and appeared to reduce maternal restlessness, impacts on offspring development in postnatal life are not known.
Authors:
E K Harris; E P Berg; E L Berg; K A Vonnahme
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-12
Journal Detail:
Title:  Journal of animal science     Volume:  -     ISSN:  1525-3163     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Animal Sciences, North Dakota State University, Fargo, ND 58108.
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