@conference {41215,
	title = {Rumen foam stability in cattle selected for low or high bloat susceptibility},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {60},
	year = {2000},
	month = {Jan},
	pages = {277-280},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Hamilton},
	abstract = {A simplified method to measure foam volume (V infinity) and stability (1/k2) was used to investigate the influence of saliva on foam properties and its relationship to bloat susceptibility. Significant differences in V infinity and 1/k2 were observed between samples of rumen fluid (within-sample CVs were 9\% and 18\%, while between sample CVs were 57\% and 70\% for V infinity and 1/k2, respectively). Mixing bovine saliva with rumen fluid or diluted clover juice resulted in a large increase in V infinity and 1/k2 (4.6- and 7.8-fold, respectively). This effect was strongly synergistic as saliva alone produced essentially no foam. The assay was used to quantify the efficacy of a paraffin-based anti-bloat drench (V infinity and 1/k2 were decreased by up to 4-fold and 6-fold, respectively). Saliva from non-bloating cattle, four each from herds bred for low- or high-bloat susceptibility, was measured for the effect on the foam parameters of a rumen fluid sample. No significant differences due to herd-of-origin were observed. },
	issn = {1176-5283},
	author = {Hurd SA and Wheeler TT and Morris CA}
}
