Zobrazeno 1 - 10
of 49
pro vyhledávání: '"M. J. Ulyatt"'
Publikováno v:
Animal, Vol 2, Iss 1, Pp 141-148 (2008)
The aim of this study was to evaluate the sulphur hexafluoride (SF6) tracer technique for methane (CH4) emission measurement in sheep. Ten cryptorchid Romney sheep were involved in two indoor trials (T1 and T2), where daily CH4 emissions were individ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9be886cd56b61a5d1866f99fdb3b4fff
https://doi.org/10.1017/s1751731107000857
https://doi.org/10.1017/s1751731107000857
Publikováno v:
New Zealand Journal of Agricultural Research. 48:385-390
Four groups of sheep were grazed on four late summer/autumn pastures: southern North Island summer moist hill country (Ballantrae); good quality perennial ryegrass/white clover dominant pasture in the Manawatu (Aorangi); severe late summer drought pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec3a9f138466a10c363115e22b2004c6
https://doi.org/10.1080/00288233.2005.9513671
https://doi.org/10.1080/00288233.2005.9513671
Publikováno v:
The Journal of Agricultural Science. 140:227-233
Four low and four high methane (CH4) emitters were selected from a flock of 20 Romney sheep on the basis of CH4 production rates per unit of intake, measured at grazing using the sulphur hexafluoride (SF6) tracer technique. Methane emissions from the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::934e7ecbac90eb32ddca46bada818d43
https://doi.org/10.1017/s0021859603003071
https://doi.org/10.1017/s0021859603003071
Publikováno v:
The Journal of Agricultural Science. 140:205-214
An indoor experiment involving 10 rumen-cannulated Romney sheep was conducted in May and June 1998 at AgResearch Grasslands, Palmerston North, New Zealand, under restricted feeding conditions, in order to test the hypothesis that animal factors, in p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79bb9cc4aae9a5079e5bf7fbc67d9112
https://doi.org/10.1017/s0021859603003046
https://doi.org/10.1017/s0021859603003046
Autor:
M. J. Ulyatt, G. C. Waghorn, D. E. Johnson, T. N. Barry, C. W. Holmes, C. S. Pinares-Patiño, K. R. Lassey
Publikováno v:
The Journal of Agricultural Science. 140:215-226
Based on the knowledge that alpaca (Lama pacos) have a lower fractional outflow rate of feed particles (particulate FOR) from their forestomach than sheep (San Martin 1987), the current study measured methane (CH4) production and other digestion para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2353b542934dfe4c55d1067d8ac0e50
https://doi.org/10.1017/s002185960300306x
https://doi.org/10.1017/s002185960300306x
Publikováno v:
New Zealand Journal of Agricultural Research. 45:217-226
Daily methane emission from 12 Romney‐cross‐bred ewes and 10 lactating Friesian dairy cows, rotationally grazed on perennial ryegrass/white clover dominant pastures, was measured during four seasons of a year (September, November, March, and June
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1e4e54a97f412786befde67741589f8
https://doi.org/10.1080/00288233.2002.9513512
https://doi.org/10.1080/00288233.2002.9513512
Publikováno v:
New Zealand Journal of Agricultural Research. 45:227-234
Methane emission was measured from 10 dairy cows and 12 wether sheep grazing kikuyu grass‐ (Pennisetum clandestinum) dominant pastures at Waimate North, Northland, in February 1997 and March 1999, and from 10 dairy cows grazing summer grass‐ (Dig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37dad321e786bec05b4a54e249f94439
https://doi.org/10.1080/00288233.2002.9513513
https://doi.org/10.1080/00288233.2002.9513513
Publikováno v:
Chemosphere - Global Change Science. 3:367-376
In a technique for measuring methane emitted by grazing ruminant livestock, a calibrated source of inert tracer sulfur hexafluoride (SF6) is inserted into the rumen of each participating animal prior to collection of “breath” samples for gas anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcc5c46ed6c21625dc674d6c3f4801d2
https://doi.org/10.1016/s1465-9972(01)00017-4
https://doi.org/10.1016/s1465-9972(01)00017-4
Publikováno v:
Animal Science. 51:291-300
Two experiments were conducted to investigate the basis for an increase in ovulation rate in ewes given improved nutrition prior to mating.Sixteen wether sheep were used in the first experiment in order to screen physiological and nutritional variabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33bdd28001edcf6e180124667176b762
https://doi.org/10.1017/s0003356100005444
https://doi.org/10.1017/s0003356100005444
Autor:
K. R. Lassey, M. J. Ulyatt
Publikováno v:
Non-CO2 Greenhouse Gases: Scientific Understanding, Control and Implementation ISBN: 9789048154098
In a series of field campaigns since 1995, a team of atmospheric and ruminantnutrition scientists have measured methane emissions directly from individual ruminant livestock freely grazing representative New Zealand pastures. The technique collects i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e69b058161e5380ecee178d89ad00de
https://doi.org/10.1007/978-94-015-9343-4_7
https://doi.org/10.1007/978-94-015-9343-4_7
