Böngészés tárgyszó szerint "Dairy cows"
1-10 tétel 10 közül
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Antibiotikum maradványanyag tartalmú tej gátló hatásának vizsgálata gyors módszerekkel
(2014)During our experiments 9 dairy cows were treated intramammally with Rilexin 200 T (containing cephalexin) and their milk was sampled within the withdrawal time. The antibiotic (cephalexin) content milk samples ware heat ... -
Breed development and breeding strategy of the Irish Kerry Cattle
(2013-05-23)At present there are approximately 1000 breeding females. A survey, currently being conducted by The Kerry Cattle Society Ltd., shows that Kerry cattle births for the year 2011 numbered 288 males and 328 females, giving ... -
Endocrine and pregnancy protein changes during periparturient period with correlation of stillbirth in dairy cow
(2013-11-06)Over the last fifty years a decline in fertility in high yielding Holstein dairy cattle is observed as well as a steady incline of the stillbirth rates during the last years is detectable, especially in Holstein-Friesian ... -
Endocrine and pregnancy protein changes during periparturient period with correlation of stillbirth in dairy cow
(2013-05-22)Over the last fifty years a decline in fertility in high yielding Holstein dairy cattle is observed as well as a steady incline of the stillbirth rates during the last years is detectable, especially in Holstein-Friesian ... -
Evaluation of the heterosis in a dairy grading-up breeding system
(2014)Production of beef and milk is increasingly becoming an important economic sector because of the greater interest and need for these products. Therefore the selection is aimed to create early maturing and productive animals. -
Fertility in dairy cattle : a review
(2014) -
Oestrus synchronisation in dairy cattle with GnRH and prostaglandin drugs
(2016)The objective of this thesis is to provide an overview of the various methods of oestrus synchronisation in dairy cattle using PGF2a and/or GnRH-based treatment protocols and explore both their positive and negative impact ... -
The European legal aspects of prophylaxis against the most important contagious disease affecting dairy cattle with special regards to Ireland
(2015)In my study I chose to focus on the epidemiological and economically significant diseases affecting Ireland at this current time. I believed it was important to educate myself, through my research on behalf of this thesis, ... -
The relationship of minerals and electrolytes with health, and fertility at the early lactation in dairy cows fed anionic salts during close-up period
(2014)One hundred Holstein dairy cows in transition period were enrolled in our study between -21 to -14 day before calving (close-up) which were fed by commercial anionic salts supplements. After enrollment, the animals were ...