Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/73938
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Undernutrition during early follicle development has irreversible effects on ovulation rate and embryos |
Author: | Chen, T. Stott, P. Athorn, R. Bouwman, E. Langendijk, P. |
Citation: | Reproduction Fertility and Development, 2012; 24(6):886-892 |
Publisher: | C S I R O Publishing |
Issue Date: | 2012 |
ISSN: | 1031-3613 1448-5990 |
Statement of Responsibility: | T.Y. Chen, P.Stott, R.Z. Athorn, E. G. Bouwman and P. Langendijk |
Abstract: | This study assessed carry-over effects of energy level during the early antral phase and subsequent follicular phase on follicle recruitment and ovulation rate. Gilts (n = 45) were fed a standard diet to a low (L, ~1.2 kg day–1) or high (H, ~2.7 kg day–1) level during the early antral (luteal) phase, and subsequently fed a H or L feed level during the follicular phase, resulting in four treatment groups (HH, HL, LH and LL). Follicle size at the end of the luteal phase was greater for gilts fed a high feed level previously (3.3 vs 3.0 mm; P < 0.05). During the follicular phase, high feeding increased follicle size at Day 5 (6.9 vs 6.2 mm; P < 0.005) and plasma oestradiol concentration (P < 0.05). Nevertheless, a low feed level during the luteal phase reduced ovulation rate (14.4 vs 13.2; P < 0.05) and embryo number (12.6 vs 10.5; P < 0.05), and this was not counteracted by feed level during the follicular phase. Plasma progesterone concentration after ovulation was lower for LL gilts than for other treatments (P < 0.05). These results indicate that undernutrition during early antral follicle development may have a residual effect on follicle recruitment and quality. |
Keywords: | feed level oestradiol progesterone |
DOI: | 10.1071/RD11292 |
Published version: | http://dx.doi.org/10.1071/rd11292 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 4 |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.