Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-2-2
pubmed:abstractText
This study assessed the interactive effects of carbohydrate type (fibre vs starch) and fatty acid (FA) supplementation (0% vs 6% calcium soaps of palm oil FA) on the post-fertilisation development of oocytes recovered from low and moderate body condition score (BCS) heifers. A secondary objective was to compare the FA composition of plasma to that of granulosa cells (GCs) and cumulus-oocyte complexes (COCs) from these animals, and to relate these findings to the developmental potential of oocytes. Plasma, GCs and COCs were recovered from 32 heifers on day 5 of a synchronised oestrous cycle for FA analyses. Oocytes were also recovered on days 10 and 15 of the same cycle after short-term ovarian stimulation (FSH + GnRH), and matured, fertilised and cultured to the blastocyst stage in vitro. High levels of dietary starch increased (P < 0.01) plasma insulin but, together with dietary FA, reduced (P < 0.05) blastocyst yields in low, but not in moderate, BCS heifers. Diet-induced alterations to the FA content of plasma were less apparent in GCs and COCs. In summary, although dietary lipids increased the FA content of COCs, the selective uptake of saturated FAs at the expense of mainly polyunsaturated FAs within the follicular compartment ensured that the FA composition of COCs was largely unaffected by diet. However, the concentration of saturated FAs within COCs was inherently high, and so further increases in FA content may have impaired post-fertilisation development. The data establish a robust nutritional framework for more detailed studies into the mechanistic effects of dietary composition on the post-fertilisation developmental potential of oocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1470-1626
pubmed:author
pubmed:issnType
Print
pubmed:volume
131
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
247-58
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:16452718-Animal Feed, pubmed-meshheading:16452718-Animals, pubmed-meshheading:16452718-Blastomeres, pubmed-meshheading:16452718-Body Composition, pubmed-meshheading:16452718-Cattle, pubmed-meshheading:16452718-Dietary Carbohydrates, pubmed-meshheading:16452718-Dietary Fats, Unsaturated, pubmed-meshheading:16452718-Embryonic Development, pubmed-meshheading:16452718-Fatty Acids, pubmed-meshheading:16452718-Female, pubmed-meshheading:16452718-Fertilization in Vitro, pubmed-meshheading:16452718-Insulin, pubmed-meshheading:16452718-Insulin-Like Growth Factor I, pubmed-meshheading:16452718-Leptin, pubmed-meshheading:16452718-Male, pubmed-meshheading:16452718-Phospholipids, pubmed-meshheading:16452718-Pregnancy, pubmed-meshheading:16452718-Progesterone, pubmed-meshheading:16452718-Triglycerides
pubmed:year
2006
pubmed:articleTitle
Body composition, dietary carbohydrates and fatty acids determine post-fertilisation development of bovine oocytes in vitro.
pubmed:affiliation
Scottish Agricultural College, Craibstone Estate, Bucksburn, Aberdeen AB21 9YA, UK.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't