Projects per year
Abstract
The effect of nutrition before and after calving on metabolic status and the resumption of ovulation postpartum was examined in multiparous sucked beef cows on subtropical pastures. At 6-7 months of gestation, Droughtmaster cows were randomly assigned on body weight (BW) and stage of gestation to two groups that received either standard subtropical pasture (SP, n=7,543 +/- 12 kg BW) or improved pasture (IP, n=7,564 +/- 12 kg BW). The two nutritional treatments were maintained after calving. Starting at 1 week after calving, cows were monitored for BW and body condition score (BCS, biweekly) and for circulating concentrations of insulin, glucose, IGF-1, GH and leptin (weekly). Ovarian follicular status was monitored weekly by trans-rectal ultrasonography. Fecal samples were obtained at 3-week intervals to ascertain percentage crude protein (%CP) and dry matter digestibility (DMD) of pastures. Crude protein and DMD were greater (P
Original language | English |
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Pages (from-to) | 137-144 |
Number of pages | 8 |
Journal | Animal Reproduction Science |
Volume | 137 |
Issue number | 3-4 |
DOIs | |
Publication status | Published - Mar 2013 |
Structured keywords
- WUN
Keywords
- Postpartum
- Nutrition
- Metabolic hormones
- Ovulation
- Beef cow
- GROWTH-FACTOR-I
- DIETARY ENERGY RESTRICTION
- BODY CONDITION SCORE
- DAIRY-COWS
- REPRODUCTIVE-PERFORMANCE
- FOLLICULAR DEVELOPMENT
- LUTEINIZING-HORMONE
- POSTPARTUM ANESTRUS
- BOVINE GRANULOSA
- FATTY-ACIDS
Projects
- 2 Finished
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Global Farm Platforms for Optimisation of Grazing Livestock Production Systems
Eisler, M. C., Miller, H., Greathead, H., Martin, G., Liu, J., Lee, M. R., Goddard, E., van Saun, R. & Jahn, M.
1/01/14 → 31/12/15
Project: Research
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Ensuring Sustainable and Responsible Production of Healthy Food from Healthy Animals
Eisler, M. C., Miller, H., Sankaran, M., Greathead, H., Martin, G., Liu, J., Ramkumar, S. & Murray, P.
1/01/13 → 31/12/13
Project: Research