Histomorphometric indicators of chicken-broilers spleen of the cobb-500 cross within the species-specific interferon

The article presents the data study on the effect of recombinant avian alpha-interferon used by poultry flocks on the histomorphological structure of the spleen of broilers of Cobb 500 cross. The study shows the spleen of the experimental group chickens in a state of physiological maturity, which indicates the formation of the spleen as an immune organ in the early postnatal period becoming an important indicator of determining the state of the organism during its formation and adaptation to the environment.

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THE STATE OF CELLULAR IMMUNITY IN PIGLETS DURING EARLY POSTNATAL PERIOD

Rossiiskaia selskokhoziaistvennaia nauka ◽

10.31857/s250026272003014x ◽

2020 ◽

pp. 57-60

Author(s):

A.G. Shakhov ◽

◽

S.V. Shabunin ◽

L.Yu. Sashnina ◽

M.Yu. Zheynes ◽

...

Keyword(s):

Cellular Immunity ◽

Postnatal Period ◽

The State ◽

Early Postnatal Period

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Influence of a prebiotic based on blue-green microalgae on the reproductive qualities of first litter gilts

The Agrarian Scientific Journal ◽

10.28983/asj.y2021i1pp65-67 ◽

2021 ◽

pp. 65-67

Author(s):

Olga Nikolaevna Polozyuk ◽

Tatyana Ivanovna Lapina

Keyword(s):

Milk Production ◽

Live Weight ◽

Postnatal Period ◽

Early Postnatal Period ◽

Control Group ◽

Green Microalgae ◽

Experimental Group

It was found that the use of a prebiotic based on blue-green microalgae in pigs in the early postnatal period of development improved their reproductive qualities. The weight of the nest at birth and the live weight of piglets at weaning in the first litter gilts of the control group was 9.5 and 23.7% less than in the sows of the experimental group. The milk production of the ewes in the experimental group was 8.4 kg higher than in the control group. As they grew and were able to use additional feeding, the piglets in the experimental group overtook their peers and by weaning had a live weight of 14.3 kg (23.7%) more than in the control group. The safety of piglets obtained from the first litter gilts of the experimental group during the weaning period (32 days) was 5.3% more than the control.

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The influence of the bakery on the quality of the environment

Samara Journal of Science ◽

10.17816/snv201871107 ◽

2018 ◽

Vol 7 (1) ◽

pp. 41-45

Author(s):

Aysilu Ayratovna Islamova ◽

Irina Valerievna Yambatirova

Keyword(s):

Fluctuating Asymmetry ◽

The State ◽

Way Of Life ◽

Important Indicator ◽

Coniferous Trees ◽

Entire Complex ◽

Negative Impacts ◽

The Stability ◽

Species Specific

Plants are extremely sensitive to the environment, because they assimilate substances simultaneously from two environments: from soil and air. In connection with the fact that plants lead an attached way of life, the state of their organism reflects the state of a particular local habitat. Since vegetation is directly affected by unfavorable factors, it allows the researcher to evaluate the entire complex of negative impacts exerted by the enterprise on whose territory they grow. This paper is devoted to the analysis of fluctuating asymmetry of sheet plates as an indicator of the quality of the environment. The coefficient of fluctuating asymmetry is often used to estimate the level of contamination of a particular area, taking into account the species-specific reaction of plants to unfavorable factors. A conclusion about the stability of the development of vegetation growing on the territory under investigation is made on the basis of the obtained value of the coefficient of fluctuating asymmetry. An important indicator of the state of the air environment is the condition of coniferous trees, in addition to the asymmetry of the leaves of tree plantations: the degree of defoliation of the crowns, the yellowing of the needles, the number of cones and the growth of shoots. The assessment of the life condition of coniferous trees was carried out on the basis of the analysis of the data relating to all of the above parameters established for the trees.

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