Publication Date
1993
Description
To determine the influence of grass .height on ingestive behaviour of Japanese Black cattle, bite size and bolus size of a Japanese Black heifer (230 kg body weight) and a Japanese Black cow (450 kg body weight) were estimated on perennial ryegrass (Lolium pere,me L.) turfs. Turfs in trays (460x600xl00 mm) were fed to the cattle for up to 3 min and reductions in turf weight were measured. One high (25 cm), 2 medium (13 cm) and 2 low (6 cm) turfs were offered to each animal. Bite size (dry matter intake/bite) both for the heifer and cow was greatest on high turfs (402 and 507 mg) and smallest on low · turfs (126 and 143 mg) respectively (P<0.05). Bolus size (dry matter intake/bolus) for both the heifer and cow was greater on high turfs (770 and 930 mg) than on medium (401 and 634 mg) or low turfs (382 and 600 mg) respectively (P<0.05,).
Citation
Shioya, Shigeru; Ochiai, Kazuhiko; Togamura, Yasuko; and Betteridge, K, "Bite and Bolus Size of Japanese Black Cattle Grazing Trays of Perennial Ryegrass of Different Heights" (2024). IGC Proceedings (1993-2023). 4.
https://uknowledge.uky.edu/igc/1993/session18/4
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Bite and Bolus Size of Japanese Black Cattle Grazing Trays of Perennial Ryegrass of Different Heights
To determine the influence of grass .height on ingestive behaviour of Japanese Black cattle, bite size and bolus size of a Japanese Black heifer (230 kg body weight) and a Japanese Black cow (450 kg body weight) were estimated on perennial ryegrass (Lolium pere,me L.) turfs. Turfs in trays (460x600xl00 mm) were fed to the cattle for up to 3 min and reductions in turf weight were measured. One high (25 cm), 2 medium (13 cm) and 2 low (6 cm) turfs were offered to each animal. Bite size (dry matter intake/bite) both for the heifer and cow was greatest on high turfs (402 and 507 mg) and smallest on low · turfs (126 and 143 mg) respectively (P<0.05). Bolus size (dry matter intake/bolus) for both the heifer and cow was greater on high turfs (770 and 930 mg) than on medium (401 and 634 mg) or low turfs (382 and 600 mg) respectively (P<0.05,).
