Zobrazeno 1 - 10
of 34
pro vyhledávání: '"A.M. van Vuuren"'
Autor:
A.M. van Vuuren, P. Chilibroste
Publikováno v:
Animal, Vol 7, Iss , Pp 19-28 (2013)
The expected higher global demand for animal proteins and the competition for starch and sugars between food, fuel and feed seem to favour herbivores that convert solar energy captured in fibrous plants into animal products. However, the required hig
Externí odkaz:
https://doaj.org/article/d3f70678011c4f83abca71065b7f47b8
Publikováno v:
Animal, Vol 7, Iss , Pp 292-302 (2013)
Ruminant production contributes to emissions of nitrogen (N) to the environment, principally ammonia (NH3), nitrous oxide (N2O) and di-nitrogen (N2) to air, nitrate (NO3−) to groundwater and particulate N to surface waters. Variation in dietary N i
Externí odkaz:
https://doaj.org/article/c5fb56bdb2d84ace86c14f7abdc9b5ec
Autor:
A.A.A. Jacobs, J. Dijkstra, J.S. Liesman, M.J. VandeHaar, A.L. Lock, A.M. van Vuuren, W.H. Hendriks, J. van Baal
Publikováno v:
Animal, Vol 7, Iss 9, Pp 1508-1516 (2013)
Stearoyl-CoA desaturase (SCD) in the bovine mammary gland introduces a cis-double bond at the Δ9 position in a wide range of fatty acids (FA). Several long-chain polyunsaturated fatty acids (PUFA) inhibit expression of SCD, but information on the ef
Externí odkaz:
https://doaj.org/article/859d25622bbd439ba1f378408c45829a
Publikováno v:
Animal, Vol 4, Iss 7, Pp 1184-1196 (2010)
The efficiency of N utilization in ruminants is typically low (around 25%) and highly variable (10% to 40%) compared with the higher efficiency of other production animals. The low efficiency has implications for the production performance and enviro
Externí odkaz:
https://doaj.org/article/499e0c2169a94f2290f914e374566dc8
Publikováno v:
Journal of Animal Physiology and Animal Nutrition. 97:353-362
Stearoyl-CoA desaturase (SCD) is an important enzyme in the bovine mammary gland, where it inserts a cis-double bond at the Δ9 position in a wide range of fatty acids. Investigating SCD expression in the bovine mammary gland generally requires invas
Development of a model for the prediction of feed intake by dairy cows: 1. Prediction of feed intake
Publikováno v:
Livestock Science 143 (2012) 1
Livestock Science, 143(1), 43-57
Livestock Science, 143(1), 43-57
A study was undertaken to develop a model for the prediction of dry matter intake by lactating Holstein Friesian dairy cows. To estimate the model parameters, a calibration dataset was compiled with the data from 32 feeding experiments conducted at 9
Publikováno v:
Livestock Science, 143(1), 58-69
Livestock Science 143 (2012) 1
Livestock Science 143 (2012) 1
In a previous paper we have proposed a new concept of a model for the prediction of feed intake by Holstein Friesian dairy cows (Zom et al., 2011). This model predicts feed intake from feed composition and digestibility and the cow's lactation number
Effect of feeding rumen protected rice bran on calcium homeostasis of non-lactating multiparous cows
Autor:
R. van Puijenbroek, M.W.A. Verstegen, A.M. van Vuuren, H.H. van Laar, L.A. den Hartog, Javier Martín-Tereso
Publikováno v:
Journal of Animal Physiology and Animal Nutrition. 95:236-244
Milk fever in dairy cows can be prevented by activating Ca homeostasis before calving. Homeostatic adaptation can be achieved by reducing dietary Ca availability. Formaldehyde-treated rice bran was studied to supply rumen protected phytic acid to red
Publikováno v:
Journal of Animal Physiology and Animal Nutrition. 94:319-329
An in vivo experiment was performed to determine the effect of level of maize starch in the diet on digestion and site of digestion of organic matter, starch and neutral detergent fibre (NDF). In a repeated change-over design experiment, three cows f
Publikováno v:
Livestock Production Science, 63(1), 27-38
Livestock Production Science 63 (2000) 1
Livestock Production Science 63 (2000) 1
To quantify the effect of a reduction in nitrogen fertilizer on grass intake and animal performance, four zero-grazing experiments were carried out, two in spring/early summer and two in late summer. Grass was fertilized at three levels of N fertiliz