Zobrazeno 1 - 10
of 72
pro vyhledávání: '"R.E. Agnew"'
Publikováno v:
Livestock Science. 124:233-241
Body composition and live animal measurements of Holstein–Friesian lactating dairy cows (n = 146) were obtained from a large herd to represent a range of animal factors including parity, live weight (LW), body condition score (BCS), milk yield and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e7edaca221ccf047ad9abfbecb6d503
https://doi.org/10.1016/j.livsci.2009.02.003
https://doi.org/10.1016/j.livsci.2009.02.003
Publikováno v:
Journal of Animal Science. 85:1982-1989
Data from 286 beef cattle, obtained in total diet digestibility assessments, were used to examine effects of dietary and animal factors on N excretion in feces and urine and to develop prediction equations for N excretion in beef cattle. The animals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea19b7c7d4b4a7e98accc1934a6e973b
https://doi.org/10.2527/jas.2006-408
https://doi.org/10.2527/jas.2006-408
Publikováno v:
Journal of Dairy Science. 89:1031-1042
The data used in the present study were derived from a 2 (genotype) x 2 (plane of nutrition) factorial design production study using Holstein-Friesian (n = 32) and Norwegian (n = 32) first-lactation dairy cattle offered grass silage-based diets from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5649e81ed07247265945e666a2a52b5d
https://doi.org/10.3168/jds.s0022-0302(06)72170-1
https://doi.org/10.3168/jds.s0022-0302(06)72170-1
Publikováno v:
Journal of Dairy Science. 88:2476-2486
The objective of the present study was to investigate the potential of the urea dilution technique, coupled with live animal measures to predict the body components of dairy cattle. The study involved 104 lactating Holstein-Friesian cows offered gras
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bc7fde1c8658c0a1c55eda4eb3e7d09
https://doi.org/10.3168/jds.s0022-0302(05)72925-8
https://doi.org/10.3168/jds.s0022-0302(05)72925-8
Publikováno v:
Livestock Production Science. 92:233-240
This study was undertaken to develop models which could be used in conjunction with the near infrared reflectance spectroscopy (NIRS) analysis of grass silage to accurately predict the intake potential of grass silage when offered to lactating dairy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92f718369d96b3a663b4eef05f267467
https://doi.org/10.1016/j.livprodsci.2004.08.015
https://doi.org/10.1016/j.livprodsci.2004.08.015
Autor:
R.E. Agnew, T. Yan
Publikováno v:
Animal Feed Science and Technology. 117:197-213
A total of 174 perennial ryegrass silages were evaluated in nine studies for chemical composition, nutrient digestibility and urinary energy output with sheep (four sheep/silage) offered the silage as a sole diet at maintenance energy feeding level.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5737ec40b92156808f9c8ce3ce507f60
https://doi.org/10.1016/j.anifeedsci.2004.09.002
https://doi.org/10.1016/j.anifeedsci.2004.09.002
Publikováno v:
Animal Feed Science and Technology. 115:169-178
This study explored the accuracy of near infrared reflectance spectroscopy (NIRS) to predict the chemical composition and short-term voluntary intake rate of grazed grass. A population of 203 predominantly perennial ryegrass samples were used. Dried
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df7884576157a87aa880706c1a0ef3aa
https://doi.org/10.1016/j.anifeedsci.2004.01.009
https://doi.org/10.1016/j.anifeedsci.2004.01.009
Publikováno v:
Livestock Production Science. 82:151-162
A total of 139 treatment mean data of lactating dairy cows, offered mixed diets of concentrates and silages of grass ( n =33) and maize ( n =5) ad libitum, were obtained from 12 long term feeding experiments (8–10 weeks/period). In these experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a8c01842877b3b6bfac59c41d0d62c1
https://doi.org/10.1016/s0301-6226(03)00014-9
https://doi.org/10.1016/s0301-6226(03)00014-9
Publikováno v:
Journal of Dairy Science. 86:1415-1428
A set of data from 838 lactating dairy cows, drawn from 12 long-term feeding studies (at least 8 wk/period), was used to evaluate the energy feeding systems for dairy cows currently adopted in Australia, France, The Netherlands, the United Kingdom, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c44aec44c200bb7adb188a0392313d7
https://doi.org/10.3168/jds.s0022-0302(03)73725-4
https://doi.org/10.3168/jds.s0022-0302(03)73725-4
Publikováno v:
Animal Feed Science and Technology. 102:151-167
This study was undertaken to determine if freezing and thawing of fresh grass silage influenced near infrared reflectance spectroscopy (NIRS) predictions. Approximately 1 kg each of 19 grass silages was used. Each sample was split into three sub-samp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::059a1784facf7fedbaa08edbdaecbdc3
https://doi.org/10.1016/s0377-8401(02)00247-x
https://doi.org/10.1016/s0377-8401(02)00247-x