EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

The influence of feeding level during lactation and gestation on the endocrine status and reproductive performance of second parity sows



The influence of feeding level during lactation and gestation on the endocrine status and reproductive performance of second parity sows



Canadian Journal of Animal Science 70(4): 1119-1126



During their second lactation, 123 second-parity Yorkshire .times. Landrace sows were fed either 6 kg or 3 kg d-1 of a barley-soybean meal diet formulated to provide 12.5 MJ DE kg-1 and 16% crude protein (approximately 90 and 45% of National Research Council (NRC 1988) requirements). From 48 h after the onset of the post-weaning estrus, sows from each lactation feed treatment were allocated equally to receive the same diet at 3.6 kg or 1.8 kg d-1 (approximately 160 and 80% of NRC (1988) requirements), until slaughtered at 25 d of gestation. On days 4, 8, 12 and 16 of gestation eight sows from each of the four feed level combinations were blood sampled at 15-min intervals for 4 h. Additionally, a further eight sows were sampled once on each of the above days. The lower plane of feeding during lactation resulted in a greater body weight and backfat loss 26.6 vs 13.8 kg and 6.5 vs 3.6 mm, respectively; P < 0.01 for both), an increased incidence of anestrus (21 vs 8%; P < 0.05) and a longer and more variable interval to estrus (8.9 .+-. 0.4 vs 6.0 .+-. 0.2 d; P < 0.01) than higher level feeding. There was no effect of lactation feeding level on ovulation rate (17.6 .+-. 0.3 vs 17.7 .+-. 0.4 for sows having the higher and lower feed intakes, respectively). There was a main effect of lactation (P < 0.01), but not gestation, feeding level and an interaction between lactation (P < 0.01), but not gestation, feeding level and an interaction between lactation and gestation feeding level (P < 0.02), on number of embryos and percent embryo survival. Embryo numbers and survival were reduced following lower plane feeding during lactation but were lowest following lower plane feeding during both lactation and gestation. There was no effect of sampling day on plasma LH concentrations but plasma LH was lower (P < 0.01) in sows on lower plane feeding during both lactation and gestation. The present data confirm an adverse effect of low plane feeding during lactation on subsequent sow reproductive performance and suggest that a reduction in plasma LH concentrations may be involved. These data fail to confirm any adverse effect on embryos survival of high plane feeding during the first 25 d of gestation.

(PDF emailed within 1 workday: $29.90)

Accession: 002252654

Download citation: RISBibTeXText



Related references

Influence of feeding level during lactation and gestation on the reproductive performance of second parity sows. Canadian Journal of Animal Science 70(4): 1166, 1990

The influence of feeding level during lactation and the following pregnancy on the reproductive performance of sows. Agriculture and Forestry Bulletin, University of Alberta (Special Issue): 59-61, 1988

Characterization of plasma metabolites at late gestation and lactation in early parity sows on production and post-weaning reproductive performance. Journal of Animal Science: -, 2018

Measurements of body composition during late gestation and lactation in first and second parity sows and its relationship to piglet production and post-weaning reproductive performance. Livestock Science 178: 289-295, 2015

Relationship between feeding level and subsequent reproductive performance in first parity sows. Irish Journal of Agricultural & Food Research 31(1): 103, 1992

Effect of feeding complex vs. simplified diets to sows during gestation and lactation on reproductive performance. Progress report Kentucky Agricultural Experiment Station: (188) 68-70, 1970

Effects of level and distribution of energy supply during gestation on reproductive performance of sows during lactation. Zuechtungskunde 58(5): 374-382, 1986

The effects of food level during lactation and early gestation on the reproductive performance of mature sows. Animal Production 57(3): 437-445, 1993

The influence of feeding level during lactation and from weaning to oestrus on body weight gain, fatness, reproductive performance and mammary gland health in sows. Annals of Animal Science (Suppl. 1): 93-98, 2003

Effects of dietary salt level during gestation and lactation on reproductive performance of sows: a cooperative study. Journal of Animal Science 67(2): 374-385, 1989

Effects of feeding 10% rapeseed meal Brassica napus during gestation and lactation over three reproductive cycles on the performance of hyperprolific sows and their litters. Canadian Journal of Animal Science 92(4): 513-524, 2012

The influence of over feeding sows during gestation on reproductive performance and pig growth to slaughter. Archiv fur Tierzucht 50(Special Issue): 82-91, 2007

The effects of feeding grains naturally contaminated with Fusarium mycotoxins with and without a polymeric glucomannan adsorbent on lactation, serum chemistry, and reproductive performance after weaning of first-parity lactating sows. Journal of Animal Science 85(6): 1412-1423, 2007

Effect of pad-fan cooling and dietary organic acid supplementation during late gestation and lactation on reproductive performance and antioxidant status of multiparous sows in hot weather. Tropical Animal Health and Production: -, 2018

The effect of nutrition on the reproductive performance of first-litter sows. 1. Feeding level during lactation, and between weaning and mating. Animal Production 38(2): 241-247, 1984