@conference {3672,
	title = {Nitrogen partitioning in sheep offered three perennial ryegrass cultivars at two allowances in spring and autumn},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {75},
	year = {2015},
	month = {07/2015},
	pages = {74-78},
	address = {Dunedin},
	abstract = { },
	issn = {1176-5283},
	author = {Jonker A and Cheng L and Edwards GR and Molano G and Taylor PS and Sonoval E and Cosgrove GP}
}
@conference {3678,
	title = {BRIEF COMMUNICATION: Methane emissions by sheep offered high sugar or conventional perennial ryegrass at two allowances},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {74},
	year = {2014},
	month = {06/2014},
	pages = {145-147},
	address = {Napier},
	abstract = {Perennial ryegrass (Lolium perenne L.) with a higher concentration of water-soluble carbohydrates (WSC) has been bred by plant breeders (Humphreys 1989). Ryegrass with a higher WSC can potentially alter rumen microbial fermentation, synchrony of energy and protein in the rumen, total energy supply to the animal and consequently productivity (Edwards et al. 2007). Methane originates mainly from rumen fermentation and is the main greenhouse-gas produced by New Zealand (NZ) agriculture (MfE 2013). The higher concentration of WSC in high sugar ryegrass (HSG) can change rumen fermentation patterns (Lee et al. 2003) and may consequently affect methane emissions. Methane emissions are largely driven by dry matter intake (DMI) (Hammond et al. 2013) and methane mitigation strategies are often more effective at a high DMI (Moe \& Tyrrell 1979). However, a true methane mitigation strategy should be effective at any DMI level.

The objective of this study was to determine methane emissions from sheep fed freshly cut diploid HSG, conventional diploid ryegrass (CRG) and tetraploid ryegrass (TRG) offered at two levels of metabolisable energy for maintenance (MEm).},
	issn = {1176-5283},
	author = {Jonker A and Molano G and Sandoval E and Taylor PS and Antwi C and Cosgrove GP}
}
@conference {41780,
	title = {A versatile sheep respiration chamber system for measurement of methane emission},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {68},
	year = {2008},
	month = {Jan},
	pages = {29-30},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Brisbane, Australia},
	abstract = {Globally, the single most important source of greenhouse gas emissions from grazing systems is enteric methane (CH4) arising as a by-product of the fermentation of feed in the reticulo-rumen of ruminants (Clark et al., 2005). Methane is implicated in global warming and in countries where livestock constitutes a major emission source such as New Zealand, international commitments are driving research to develop emission reduction technologies, for which accurate measurements of CH4 emissions are ...Continued },
	issn = {1176-5283},
	author = {Pinares-Patino CS and Lovejoy P and Hunt C and Martin R and Molano G and Waghorn GC and Clark H}
}
@conference {41889,
	title = {Methane emissions from growing beef cattle grazing hill country pasture},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {66},
	year = {2006},
	month = {Jan},
	pages = {172-175},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Napier},
	abstract = {Methane (CH4) emissions from 12 Hereford x Friesian steers grazing hill country were measured on six occasions (6, 11, 13, 15, 23, and 26 months of age) during the months of February, July, September, November 2003, and October and November 2004 using the sulphur hexafluoride (SF6) tracer gas technique. These data are the first serial measurements of CH4/kg DMI on growing dairy beef cattle in New Zealand. Average daily methane ({\textpm} s.d.) emissions increased from 89 (10) g/head/d for 6 month old steers to 222 (46) g/head/d for 26 month old steers. The corresponding dry matter intake (DMI), predicted from energy requirements using the Feeding Standards for Australian Livestock, also increased from 3.6 kg/head/d to 12.0 kg/head/d for 6 and 26 month old steers, respectively. In contrast to the increasing DMI and daily methane emissions with age of the steers, the mean methane emission per unit of estimated intake was relatively constant at 17.3 (3.7) to 19.0 (5.6) g CH4/kg DMI from 11 to 26 months of age with a higher value of to 26.1 (7.0) g CH4/kg DMI for the 6 month old steers. The overall mean value of 19.5 ({\textpm} 5.2) g CH4/kg DMI is lower than that used in the current national inventory calculations. },
	issn = {1176-5283},
	author = {Molano G and Clark H and Knight TW and Cavanagh A}
}
