Zobrazeno 1 - 10
of 43
pro vyhledávání: '"C. P. Ferris"'
Publikováno v:
Spanish Journal of Agricultural Research, Vol 11, Iss 1, Pp 120-126 (2013)
The aim of this work was to study the behavioural activities of two cow genotypes, Holstein-Friesian (HF) vs. Jersey × Holstein-Friesian (Jx), when managed within two production systems, a low inputs grazing (G) system vs. a high inputs confinement
Externí odkaz:
https://doaj.org/article/5935e289e570440eb8ca4cc9fad0f162
Publikováno v:
animal. 16:100562
Nitrogen (N) excretion from livestock production systems is of significant environmental concern; however, few studies have investigated the effect of dietary CP concentration on N utilisation efficiency at different stages of lactation, and the inte
Autor:
C, Grelet, E, Froidmont, L, Foldager, M, Salavati, M, Hostens, C P, Ferris, K L, Ingvartsen, M A, Crowe, M T, Sorensen, J A, Fernandez Pierna, A, Vanlierde, N, Gengler, F, Dehareng
Publikováno v:
Journal of dairy science. 103(5)
Improving nitrogen use efficiency (NUE) at both the individual cow and the herd level has become a key target in dairy production systems, for both environmental and economic reasons. Cost-effective and large-scale phenotyping methods are required to
Autor:
Tianhai Yan, David Wills, D. L. Easson, H. P. Jiao, C. P. Ferris, David A. McDowell, A. F. Carson
Publikováno v:
Journal of Animal Science. 91:356-362
Twenty 5-mo-old Holstein cattle (10 steers and 10 heifers) were selected from a dairy herd for a 28 d study of enteric methane emissions and energy utilization. The cattle were offered a completely mixed diet with grass silage and concentrates (0.45
Publikováno v:
Journal of Dairy Science
Journal of Dairy Science, American Dairy Science Association, 2017, 100 (5), pp.3641-3657. ⟨10.3168/jds.2016-11938⟩
Journal of Dairy Science, American Dairy Science Association, 2017, 100 (5), pp.3641-3657. ⟨10.3168/jds.2016-11938⟩
Milk responses to dietary change are influenced by the relative production level, that is, the distance between observed production and potential production. The closer the animal is to its potential, the smaller the expected response is to extra nut
Publikováno v:
Arnott, G, Ferris, C P & O'Connell, N E 2017, ' A review of the welfare of dairy cows in continuously housed and pasture-based production systems. ', Animal, vol. 11, no. 2, pp. 261-273 . https://doi.org/10.1017/S1751731116001336
Animal, Vol 11, Iss 2, Pp 261-273 (2017)
Animal, Vol 11, Iss 2, Pp 261-273 (2017)
There is increasing interest in the use of continuous housing systems for dairy cows, with various reasons put forward to advocate such systems. However, the welfare of dairy cows is typically perceived to be better within pasture-based systems, alth
Publikováno v:
Grass and Forage Science. 63:138-151
In the UK, dairy cows are increasingly housed at night throughout the grazing season. However, there is limited information on cow performance and the impact on labour requirements when a forage supplement is offered during housing at night throughou
Autor:
C. P. Ferris
Publikováno v:
Canadian Journal of Plant Science. 87:723-738
This review paper examines a number of the challenges of pasture-based dairy systems. Ensuring adequate nutrient intakes of highyielding dairy cows within grazing systems is one of the key challenges being faced by many dairy farmers. Options examine
Publikováno v:
Grass and Forage Science. 61:304-314
Two experiments were conducted to examine the effect of two winter feeding systems on the performance of dairy cows in early lactation. Experiments 1 (144 d duration) and 2 (146 d duration) involved sixty-four (primiparous) and eighty-six (primiparou
Publikováno v:
Animal Science. 81:179-184
It is well established that the genetic merit of the Holstein-Friesian dairy cow for milk production has increased over the past 20 years. Previous studies have examined the effect of feeding system on indices of body tissue reserves of medium geneti