@conference {40294,
	title = {The efficacy of used CIDR devices for synchronisation of oestrus and post-mating treatment},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {51},
	year = {1991},
	month = {Jan},
	pages = {111-116},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {An upper limit to the force animals exert to server a bite maybe  important in maintaining grazing momentum. Structural strength of  accessible pasture components would then determine bite dimensions and  weight.   Pure perennial ryegrass turfs (surface area 0.1m2 x 0.1m soil depth),  were manipulated by clipping to produce 3 pasture heights (5, 10 and  15cm) x 3 sward structures (varying in leaf to pseudostem ratio and bulk  density). Six sheep grazed 4 turfs fixed to a force plate of each  height and bulk density. Mean peak bite force, bite weight, bite depth,  bite area, bite volume and grazed stratum bulk density were calculated.   Peak bite force increased with sward surface height but significantly so  only between 10 and 15 cm. Sward structure had no effect except on the  5cm sward treatment with the highest grazed stratum bulk density. Bite  depth and bite weight increased with pasture height and were not  influenced by sward structure at a constant height. Bite area was  similar at all sward heights, but decreased as grazed stratum bulk  density increased. On short swards, proximity to the ground restricted  bite depth and bite weight rather than peak bite force. Low bite  weights per newton bite force may constrain bite depth and weight rather  than absolute peak bite force.  },
	issn = {1176-5283},
	author = {Smith JF and Konlechner JA and Parr J}
}
