Effects of dam prepartum supplement level on performance and reproduction of heifer progeny

Lindsay M. Shoup, Frank A. Ireland, Daniel William Shike

Research output: Contribution to journalArticle

Abstract

Objectives were to determine the effect of dam prepartum supplement level on growth performance, feed efficiency and reproductive performance of female progeny (127 heifers in year 1, 138 heifers in year 2). Mature, multiparous, fall-calving, Angus × Simmental cows (initial age=5.6 ± 1.9 years, BW=623 ± 70 kg, BCS=5.7 ± 0.7) were used in a completely randomised design that included three supplement levels: no supplement (NS), low supplement, 2.16 kg·cow–1·d–1 (LS), or high supplement, 8.61 kg·cow–1·d–1 (HS). Cows grazed endophyte infected tall fescue/red clover pastures and were bunk-fed supplement (70% dried distiller’s grains plus solubles [DDGS] and 30% soybean hulls) 103 ± 11 d prepartum to 2 ± 11 d postpartum. Dam prepartum supplementation did not affect (p≥.60) heifer progeny BW at weaning, breeding, nor at pregnancy verification. Dam prepartum supplementation did not affect (p≥.18) heifer progeny AI conception rate, overall pregnancy rate, nor calving rate. Calving date, calf birth BW, percentage of unassisted births, milk production and calf BW at 73 ± 16 d of age were not different (p≥.24) among heifer progeny, regardless of dam supplement level. In conclusion, these data suggest within a fall-calving, fescue-based production system, supplementing dams with 2.16 or 8.61 kg·cow–1·d–1 of a DDGS-based supplement does not affect growth performance and reproductive performance of subsequent female progeny.

Original languageEnglish (US)
Pages (from-to)75-81
Number of pages7
JournalItalian Journal of Animal Science
Volume16
Issue number1
DOIs
StatePublished - Jan 1 2017

Fingerprint

dams (mothers)
heifers
calving
distillers grains
growth performance
reproductive performance
calves
calving rate
cows
soybean hulls
feed supplements
Simmental
Festuca
Trifolium pratense
conception rate
Festuca arundinacea
Angus
endophytes
pregnancy rate
milk production

Keywords

  • Beef heifer development
  • Foetal programming
  • Maternal nutrition
  • Supplementation

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Effects of dam prepartum supplement level on performance and reproduction of heifer progeny. / Shoup, Lindsay M.; Ireland, Frank A.; Shike, Daniel William.

In: Italian Journal of Animal Science, Vol. 16, No. 1, 01.01.2017, p. 75-81.

Research output: Contribution to journalArticle

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