@article {3672,
	title = {BRIEF COMMUNICATION: Milk production, feeding behaviour and rumen fermentation of dairy cows supplemented with winter brassica crops},
	journal = {New Zealand Journal of Animal Science and Production},
	volume = {78},
	year = {2018},
	month = {07/2018},
	pages = {125-127},
	address = {Lincoln},
	abstract = {This study evaluated feeding behaviour, dry matter intake (DMI), rumen fermentation and milk production responses of lactating
dairy cows supplemented with kale or swedes. Twelve multiparous early lactation dairy cows were randomly allocated to three
dietary treatments in a replicated 3 x 3 Latin square. The control diet comprised 10 kg dry matter (DM) of grass silage, 4 kg
DM of grass pasture and 8.8 kg DM of concentrate; 25\% of the diet was replaced with kale or swedes. Cows supplemented with
kale showed a lower DMI compared to cows supplemented with swedes and the control diet; whereas swedes supplementation
increased eating time. Milk production responses were not affected by winter brassica supplementation. This resulted in a greater
feed conversion efficiency of cows supplemented with kale compared to that of the control diet.},
	issn = {1176-5283},
	author = {Keim JP and Rodriguez JR and Balocchi O and Pulido R and Pacheco D and Muetzel S}
}
@article {3672,
	title = {BRIEF COMMUNICATION: Milk production responses and rumen fermentation of dairy cows supplemented with summer brassica crops},
	journal = {New Zealand Journal of Animal Science and Production},
	volume = {78},
	year = {2018},
	month = {07/2018},
	pages = {122-124},
	address = {Lincoln},
	abstract = {This study evaluated the dry matter intake (DMI), rumen fermentation and milk production responses of lactating dairy cows
supplemented summer brassicas. Twelve multiparous lactating dairy cows were randomly allocated to three dietary treatments in a
replicated 3 x 3 Latin square design. The control diet was composed of 16.2 kg DM of grass silage and 4.5 kg DM of concentrate;
25\% of the diet was replaced by rape or turnip. Cows supplemented with summer brassicas showed a lower DMI (P<0.001)
compared to the control diet, however milk yield was not affected, resulting in a greater feed conversion efficiency (1.35 for
turnip and rape v/s 1.27 for the control diet). Rape supplementation significantly increased microbial protein (P=0.002). VFA
concentration and the relative proportion of propionate were increased with turnips, whereas rape increased the acetate:propionate
ratio. Mid-lactating dairy cows fed with brassicas are able to maintain production despite the reduced intake, probably due to
improved rumen fermentation and therefore nutrient utilisation.},
	issn = {1176-5283},
	author = {Keim JP and Castillo M and Balocchi O and Pulido R and Pacheco D and Muetzel S}
}
@conference {75913,
	title = {BRIEF COMMUNICATION: Evaluating rumen fluid from sheep and cattle as inoculum in a newly developed automated in vitro rumen batch culture system},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {71},
	year = {2011},
	month = {Jan},
	pages = {240-242},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Invercargill},
	abstract = {In vitro rumen batch culture systems are widely used to rank feeds according to their rate of fermentation, potential gas production and in vitro digestibility. Their main advantage is that the analysis is quick and... Continued},
	issn = {1176-5283},
	author = {Muetzel S and Hunt CL and Tavendale MH}
}
@conference {60971,
	title = {The variation in methane emissions from sheep and cattle is not explained by the chemical composition of ryegrass},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {69},
	year = {2009},
	month = {Jun},
	pages = {174-178},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {A data base of over 3,000 ruminant methane emission records from individual animals used to compile New Zealand{\textquoteright}s greenhouse gas inventory, shows substantial variation in CH4 yields (g/kg dry matter intake (DMI)) within and between forage types. Multiple regression analyses were undertaken using datasets from sheep and cattle fed fresh ryegrass to determine the extent to which variation in CH4 yields could be explained by ryegrass chemical composition. Methane was measured using the SF6 marker dilution technique with sheep and cattle, and also directly by respiration calorimetry from sheep. Data from sheep showed a similar average CH4 yield from both techniques, but there was more variation in SF6 data (23.4 {\textpm} 5.73) than from calorimetry (23.1 {\textpm} 2.89). Cattle CH4 yields averaged 19.1 {\textpm} 3.70 g/kg DMI. Multiple regression analysis of sheep data showed pasture chemical composition accounted for <2\% of the variation determined by SF6 and 20\% of the variation from calorimetry. Only 13\% of the variation in yield from cattle was explained by ryegrass composition, so the majority of variance (>80\%) was not explained. We suggest the variation in CH4 emissions is affected by digestive characteristics of individual animals, and interactions with forage physical and chemical components. },
	issn = {1176-5283},
	author = {Hammond KJ and Muetzel S and Waghorn GC and Pinares-Patino CS and Burke JL and Hoskin SO}
}
