Zobrazeno 1 - 10
of 63
pro vyhledávání: '"H. Neumark"'
Publikováno v:
Animal Science. 44:333-345
In two experiments, 165 dairy cows were allotted to groups given post-partum dietsad libitumcontaining either 150 g (LP) or 190 to 200 g (HP) crude protein (CP) per kg dry matter (DM).In experiment 1, which lasted 21 weeks after calving, cows were gi
Publikováno v:
Journal of Dairy Science. 58:1476-1481
Magnesium ferrite, an inert ferromagnetic material, was introduced as reference substances in absorption trials with ruminants. A method for assaying magnesium ferrite was based upon the difference between the weight of the test material on an analyt
Publikováno v:
Animal Science. 37:229-235
In three experiments 250 high-yielding dairy cows were fed for 18 weeks after parturition either a low-protein (LP) diet containing 150 to 160 g crude protein per kg or a high-protein (HP) diet containing 190 to 200 g crude protein per kg. In all thr
Publikováno v:
Journal of Dairy Science. 64:759-768
Three groups of 20 multiparous high-yielding cows were fed during the first 122 days after calving diets containing 16, 16, and 20% crude protein. Protein of soybean meal in the diet of only the first group was protected with formaldehyde. The calcul
Publikováno v:
The Journal of Agricultural Science. 104:271-274
SummaryTwo experiments were conducted with eight rams in a latin-square design of four treatments with different lucerne hay (LH): maize grain (MG) ratios: 100:0, 80:20, 50:50 and 20:80. In Expt 1 the amount of food offered was restricted to 1 kg/day
Publikováno v:
Animal Science. 25:27-37
SUMMARYTwo fibrous roughages, wheat straw and cotton hulls, were treated with 0, 40 and 80 g sodium hydroxide (NaOH)/kg roughage, applied in amounts of water calculated to bring the roughages to moisture contents of 30 and 60%. The effects of these f
Publikováno v:
Animal Science. 45:23-28
Two experiments were carried out with 12 non-pregnant, non-lactating beef cows (Simmental x Hereford cross), six in each experiment. In experiment 1, the cows were grazing stubble pasture and each cow was hand fed 750 g/day soya-bean meal. In experim
Publikováno v:
The Journal of Nutrition. 112:387-390
Magnesium ferrite, a non-radioactive marker which can be measured by a simple method, was used for determination of nitrogen absorption in chicks. A strong resemblance was obtained between the results with this marker and those obtained previously wi
Publikováno v:
Animal Science. 18:67-73
SUMMARYIn an experiment with group-fed cattle from 6 months of age to slaughter at 480 kg live weight two levels of feed intake: 1, ad libitum, 2, 85% of ad libitum amount, were combined with two ratios of concentrate to hay: a, 70: 30; b, 30: 70. In
Publikováno v:
Journal of the Science of Food and Agriculture. 15:487-492
Silages from different sources were arranged into two groups according to their palatability for cattle, and assayed for their amine, aldehyde and keto-acid content. A correlation between tryptamine content and palatability was established. None of t