Биологические и сельскохозяйственные науки

Developing fertilizer system for lawn grass stands

Submitted by red on Wed, 27/12/2017 - 13:17

This paper is the result of studying the peculiarities of mineral nutrition of lawn grass stands established on the basis of perennial bottom meadow grasses. In this work the assessment of the main mineral nutrients removal by the top mass of lawn plants during the whole growing season and for each mowing cycle has been given, the doses of mineral fertilizers for each experimental option in active substance and in physical weight have been defined.

The quality of bulky feeds on the farms of the Vologda Region

Submitted by red on Wed, 27/12/2017 - 13:17

The article presents the results of studying the chemical composition and quality of forage harvested on farms of the Vologda Region. As a result of detailed analysis of roughages and succulents nutritive value it has been revealed that regarding metabolizable energy and crude protein they insufficiently meet the needs of highly productive animals. The proportion of the 1st and 2nd class fodders in 2014 was as follows: 14.1% of hay, 38.5% of haylage, 44. 8% of silage.

Methodical approaches to the use of laying hen forced molting

Submitted by red on Wed, 27/12/2017 - 13:17

The analysis shows various methods of hen forced molting used in different farms. The methods used nowadays allow increasing the lifetime of laying hens, reducing the duration of molting and identifying stress resistant hens.

Reproductive ability of extrazonal spiecies

Submitted by red on Wed, 27/12/2017 - 13:13

The silvicultural taxation characteristic of English oak has been carried out under the conditions of the Vologda region. The assessment of the reproductive capacity of the species by examining the biometric indicators of acorns and by germination tests has been made. The assessment of natural regeneration has been carried out.

Impact of fluorine industrial contamination on system “soil - fodder - milk”

Submitted by red on Wed, 27/12/2017 - 13:13

The article is devoted to the actual problem of the usage of agricultural lands located within the Russian industrial territories contaminated by aluminum industry. Due to the monitoring research findings in the system “soil - fodder - milk” (area of contamination - the Krasnoyarsk aluminum smelter OJSC “RusalKrasnoyarsk”) the content of water-soluble fluorine in the plough layer of soils, awnless brome herbage and hay and in wild grasses. The foundations for restrictions concerning the agricultural usage within the contaminated area were determined was estimated.

Dynamics of pigment fund formation and spruce growth in birch blueberry forest in tree stand ontogeny

Submitted by red on Wed, 27/12/2017 - 13:13

The study of growth peculiarities and accumulation dynamics of photosynthetic pigments in spruce undergrowth in birch blueberry forests of different age is made. Methodology is described as well as brief characteristics of experimental objects are given.

Influence of the season on the maintenance of somatic cells in the milk of black-and-white cows under various milking technologies

Submitted by red on Wed, 27/12/2017 - 13:13

The article presents the results of the season dependence on the somatic cells quantity in black-and-white cow’s milk according to the milking technology.

Vivo diagnosis of dogs Toxocariasis, comparative characteristics of methods’ effectiveness

Submitted by red on Wed, 27/12/2017 - 13:13

The results of the comparative diagnostic efficiency of traditional helminthological and serological methods for the diagnostics of toxocariasis dogs T.canis are shown. Epizootological and seroepizootological data on toxocariasis spread in the population of dogs of the city of Vologda are obtained.

The indices of platelet functional ADP-reactivity in different animal species

Submitted by red on Wed, 27/12/2017 - 13:13

The article presents the results of studying the platelets adhesive activity and its comparative characteristic in different animal species.

The effect of agrometeorological conditions on the productivity of promising spring triticale varieties

Submitted by red on Wed, 27/12/2017 - 13:13

In State Dairy Farming Academy of Vologda Abstract. The article deals with the effect of climatic conditions on growth, developlment and yield of spring triticale varieties in the conditions of the Vologda region. The research was carried out on the following varieties: Scallop, Norman, Ukro, and Amigo. In the research the dates corresponding to the beginning of phenological phases of triticale growth and development have been revealed, yield structure elements and grain quality indices have been defined.

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