Search Results

You are looking at 1 - 9 of 9 items for :

  • "Dairy cows" x
  • Chemistry and Chemical Engineering x
  • Refine by Access: All Content x
Clear All

Abstract  

Since April 29, 1986, the radioactive contamination resulting from the accident of the Chernobyl reactor has been measured in various kinds of matrixes, with particular regard to Northern Italy. Here we present the data obtained for137Cs from several measurements effected on milk and dairy products over the period of one year. In particular, we have studied the transfer kinetics of137Cs from forage to milk by feeding dairy cows with forage of known activity and we have evaluated the body Cs absorption by measuring the percentages of Cs eliminated with milk as well as with urine and feces. Further, the decay rate of137Cs in milk has been assessed and the results of the kinetic, analysis are reported. We have also evaluated the efficacy of various clay materials in removing Cs from milk. Here we report the results of adsorption kinetics for the grey clay which resulted the most effective material.

Restricted access

bone formation [ 14 , 15 ]. CLA is naturally found in cow's milk (5 mg of CLA/g of fat). CLA concentration in AMF can be markedly enhanced through diet manipulation and nutritional management of dairy cows, as previously reported by Kennelly and Bell

Restricted access
Progress in Agricultural Engineering Sciences
Authors:
Marina Vranić
,
Mladen Knežević
,
Zsolt Seregély
,
Krešimir Bošnjak
,
Josip Leto
, and
Goran Perčulija

., Goodall, E. A. (1996) Effects of stage of maturity and period of ensilage on the production and utilization of grass silage by dairy cows. In: Jones, D. I. H., Jones, R., Dewhurst, R., Merry, R., Heigh, P. M. (eds) Proceedings of Eleventh International

Restricted access

. G. , McBride , B. W. ( 2011 ). Impact of high-concentrate feeding and low ruminal pH on methanogens and protozoa in the rumen of dairy cows . Microbial Ecology , 62 ( 1 ), 94 – 105 . [38

Restricted access

Szarvasmarhatartó telepen alkalmazott ivarzásindukáló hormonok megjelenése a hígtrágyában

Appearance of on-farm bovine reproductive hormones in the resulting slurry

Agrokémia és Talajtan
Authors:
Eduárd Gubó
,
Tibor Molnár
,
Pál Szakál
,
Dóra Pordán-Háber
,
Ákos Bede-Fazekas
, and
Judit Plutzer

presynch with or without GnRH, improves fertility in heat-stressed lactating dairy cows . Theriogenology . 83 . ( 3 ) 438 – 443 . 10.1016/j.theriogenology.2014.10.011 DU , B ., FAN , G ., YU , W ., YANG , S ., ZHOU , J ., LUO , J ., 2020

Open access

.1016/B978-0-08-100455-5.00010-2. Vojtela , T. , Pazsiczki , I. , Kelemen , Zs. , Bak , J. , Kocsis , L. , Fenyvesi , L. ( 2010 ) Harvesting silage maize for needs of dairy

Restricted access
Agrokémia és Talajtan
Authors:
László Horváth
,
Mária Asztalos
,
Ernő Führer
,
Róbert Mészáros
,
Kálmán Rajkai
, and
Tamás Weidinger

Smits, M. J. C., Monteny, G. J. & van Duinkeren, G., 2003. Effects of nutrition and management factors on ammonia emission from dairy cow herds: models and field observations. Livestock Prod. Sci. 84 . 113--123. Effects of

Restricted access

fertilizers on the mineral composition of herbage and on the incidence of hypomagnesaemia in dairy cows. J. Agric. Sci. 60. 313–328. Mengel, K., 1976. A növények táplálkozása és anyagcseréje. Mezőgazdasági Kiadó. Budapest

Restricted access

., COSTE , C.M . 1995 . Ammonia volatilization following surface-applied pig and cattle slurry in France . The Journal of Agricultural Science . 125 . 245 . MONTENY , G.J ., ERISMAN , J.W . 1998 . Ammonia emission from dairy cow buildings: a

Open access