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Biological and economic aspects of planned farrowing in large scale pig farming.
Synchronisation of oestrus in cattle. II. Synchronisation of oestrus in heifers.
[Resistance of Vibrio foetus type I in the seminal fluid of bulls stored in liquid nitrogen].
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Changes in total protein and protein fractions of the serum of blood and milk in cows during the sexual cycle.
Inequalities and political populism: The case of Bulgaria
The article evaluates and analyses the dynamics of inequalities in Bulgaria during 2010-2020 as quantified by a set of particular indicators including the Gini coefficient, the S80/S20 indicator and…
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Suitable feeds for bulls.
The impact of labor productivity on wages in the EU
The relationship between labor productivity and wages in the EU as a whole, as well as in comparative terms between old and new Member States is analyzed. Although the theoretical basis for such a…
[Superovulation induction in donor cows using the embryo transfer method].
TLDR
It was found that the capacity of cows to respond with superovulation after hormonal treatment was quite individual and the application of antigonadotropic sera on the first day of estrus limitedsuperovulation and raised the number of fertilized ova and embryos able to be transplanted.
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[Regulation of the reproductive functions of cows by hormonal preparations].
TLDR
The application of GnRH (Berlin Chemie, GDR) was sufficiently effective at single i/m injection before artificial insemination to raise conception rate as well as to lower the use of pellets for impregnation of cows.
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[Comparative studies of hormonal methods for affecting the reproductive functions of cows being raised by different technics].
TLDR
Treatment with estrumate between the 100th and the 160th day after calving produced a higher effect with regard to conception as against the combined treatment with gravohormon and oroestron, and the stimulating hormonal therapy had a higherEffect on the conception at first insemination with the technology of tie-up housing.
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