Publication Date
1993
Description
Wheat stubble was grazed continuously for 154 days during the summer (December-April) by reproducing and dry ewes (n-8) at 2 stocking rates ( 1 or 2 ewes/ha), Samples were collected for chemical analysis from oesophageally fistulated (OF) sheep. Intake was determined using controlled chromium-release devices. The mean CP, ADF and NDF contents and iii vitro OM digestibility of samples were respectively 16.1:t0.4%; 40.7:t0.8%, 59.0:tl.1% and 48.5±0.7% t 1 ewe/ha and 10.8±1.1%; 53.9±1.1%, 72.1±0.9% and 48.8:t0.7% at 2 ewes/ha. The mean CP intake of dry ewes was 202±7 g/day (I ewe/ha) and 113:t6 g/day (2 ewes/ha), while the CP intake of reproducing ewes in early pregnancy, late pregnancy and lactation for lower and higher stocking rates were 253±14 g/day; 226±13 g/ day; 277±13 g/day and 142±14 g/day; 91±13 g/day and 84±13 g/day. The overall means for in vivo DOM intake by dry ewes were 850±28 g/day (1 ewe/ha) and 675±25 g/day (2 ewes/ha). For reproducing ewes i11 vivo DOM intake at the lower slacking rnle increased from early pregnancy (922±68 g/day) 10 late pregnancy (1028±62 g/day) and lactation (1225±62 g/day) and decreased at the higher stocking rate from early pregnancy (820±68 g/day) to late pregnancy (661±62 g/day) and lactation (658±62 g/day).
Citation
Brand, T S.; Van Heerden, J M.; and Franck, F, "Intake of South African Mutton Merino Ewes on Wheat Stubble Grazing" (2024). IGC Proceedings (1993-2023). 8.
https://uknowledge.uky.edu/igc/1993/session33/8
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Intake of South African Mutton Merino Ewes on Wheat Stubble Grazing
Wheat stubble was grazed continuously for 154 days during the summer (December-April) by reproducing and dry ewes (n-8) at 2 stocking rates ( 1 or 2 ewes/ha), Samples were collected for chemical analysis from oesophageally fistulated (OF) sheep. Intake was determined using controlled chromium-release devices. The mean CP, ADF and NDF contents and iii vitro OM digestibility of samples were respectively 16.1:t0.4%; 40.7:t0.8%, 59.0:tl.1% and 48.5±0.7% t 1 ewe/ha and 10.8±1.1%; 53.9±1.1%, 72.1±0.9% and 48.8:t0.7% at 2 ewes/ha. The mean CP intake of dry ewes was 202±7 g/day (I ewe/ha) and 113:t6 g/day (2 ewes/ha), while the CP intake of reproducing ewes in early pregnancy, late pregnancy and lactation for lower and higher stocking rates were 253±14 g/day; 226±13 g/ day; 277±13 g/day and 142±14 g/day; 91±13 g/day and 84±13 g/day. The overall means for in vivo DOM intake by dry ewes were 850±28 g/day (1 ewe/ha) and 675±25 g/day (2 ewes/ha). For reproducing ewes i11 vivo DOM intake at the lower slacking rnle increased from early pregnancy (922±68 g/day) 10 late pregnancy (1028±62 g/day) and lactation (1225±62 g/day) and decreased at the higher stocking rate from early pregnancy (820±68 g/day) to late pregnancy (661±62 g/day) and lactation (658±62 g/day).
