منابع مشابه
Excretion of chromium sesquioxide and polyethyleneglycol by dairy cows.
ANNA W. I. VAN DAM-BAKKER AND OTHERS '958 3. The growth rate of young rats, given the high-protein and the low-protein moieties of the diet on alternate days was less than that of pair-fed, litter-mate control animals consuming both moieties together. 4. Intermittent protein feeding likewise impaired lactational capacity of the mothers and retarded recovery of the haemoglobin content of the blo...
متن کاملFactors Affecting Manure Excretion by Dairy Cows
Manure in an inevitable byproduct of the production of meat and milk destined for human consumption. Excessive excretion of manure and manure nutrients represent inefficiencies which increase feed costs, increase the environmental impact of dairy farming, and increase the costs associated with moving and storing manure. Profitability can be enhanced when good feeding and management practices ar...
متن کاملFeeding to Minimize Nitrogen Excretion by Dairy Cows
Dairy cows utilize feed crude protein (CP; N x 6.25) with much greater efficiency than other ruminant livestock but still excrete about 2-3 times more N in manure than in milk. This contributes to increased costs of milk production and to environmental N pollution. The function of dietary CP is to supply the cow with metabolizable protein (MP) as absorbed amino acids (AA) but any extra dietary ...
متن کاملRelation between nutrition, performances and nitrogen excretion in dairy cows
Reducing N excretion from individual cows is one way among others to better cope with the problem of the negative contribution of the dairy herd to the “Nitrogen cycle” on the farm. The objectives of this paper are first to quantify the effects of the main forage systems and protein feeding level on the amount of N excreted in relationship to their simultaneous effects on animal performances an...
متن کاملSynthesis of Chromium Oxide Nano Particles by Thermal Decomposition Method
Disclosed is a method of preparing pigmentary chromium oxide nano particles having 50 percent particle size less than about 100 nm. Preparation of nano chromium (III) oxide is investigated by thermal decomposition method. According to the disclosed method, a substantially dry solid composition of potassium dichromate and carbon active is heated in CO2 atmosphere to a temperature of about 60...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1958
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(58)91157-3