Факторы, Влияющие На Уровень Воспроизведения Коров В Современном Молочном Скотоводстве

Иолчиев, Байлар Садраддинович; Kononov, V. P.; Таджиева, А. В.; Багиров, В. А.; Дьякевич, О. Н.; Мамбеталиев, М. А.

doi:10.30906/1999-5636-2014-12-18-21

Cited by 3 publications

(3 citation statements)

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“…In breeding work for formation of highly productive dairy herds populations, screening is carried out for various gene variants of economically significant traits [8][9][10][11], including determining resistance to various diseases, including bovine leukosis, the most common in Russian Federation, including Republic of Tatarstan, which is confirmed by studies of causative infection agent -bovine leukemia virus (BLV) [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Elements of Dna-Technology Forming Quality and Safe Raw Materials

Gilmanov¹,

Tyulkin²,

Vafin³

et al. 2020

SERIES OF GEOLOGY AND TECHNICAL SCIENCES

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It is known that cows high milk productivity is associated with decrease in resistance to various diseases, including bovine leukosis, in resistance formation to which the BoLA-DRB3 gene plays role, whose alleles are associated with resistance (R-alleles *7, *11, *23, *28), sensitivity (S-alleles *8, *16, *22, *24) or are defined as neutral (N) in relation to the disease. Researchers also established association of BoLA-DRB3-alleles *8, *11, *23 with an increased milk yield volume, and the *22 allele - with reduced milk yield volume. The aim of research was to study associative communication of servicing bulls BoLA-DRB3 genotypes groups with their breeding value by female ancestor’s dairy productivity indicators. As a result, we studied associative communication of servicing bulls BoLA-DRB3 genotypes groups with their breeding value by female ancestor’s dairy productivity indicators with identification of reduced milk productivity with genetic resistance to bovine leukemia virus infection and bovine leukosis disease relationship, as well as observation of positive correlation between increased milk productivity and genetic predisposition to increased milk yield volumes. The obtained information will be taken into account in breeding during dairy herds reproduction with genetic resistance to bovine leukosis.

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Section: Introductionmentioning

confidence: 99%

“…Data on BoLA-DRB3 gene polymorphism [19], which alleles are associated with resistance or susceptibility to bovine leukosis [20,21], make it possible to carry out marker-directed selection in order to obtain disease-resistant animals [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Elements of Dna-Technology Forming Quality and Safe Raw Materials

Gilmanov¹,

Tyulkin²,

Vafin³

et al. 2020

SERIES OF GEOLOGY AND TECHNICAL SCIENCES

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“…There are many causes of infertility and they are very diverse (Iolchiev et al, 2014;Liu et al, 2015;Abdel-Rahman et al, 2018;Habeeb et al, 2018;Sharapa & Bojko, 2019). However, among the most common factors are alimentary and deficient factors (Ferguson, 1991;Gnojevyj, 2006;Fedoruk et al, 2017;Ibtisham et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Effect of abiotic factors on sulfidogenic activity of bacteria Desulfuromonas sp.

Сhaіka

Peretyatko

2020

Regul. Mech. Biosyst.

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Sulfur-reducing bacteria are promising agents for the development of new methods of wastewater treatment with the removal of ions of heavy metals and organic compounds. Study of the effect of various environmental factors on the growth and sulfidogenic activity of sulfur-reducing bacteria allows one to investigate the adaptability of these microorganisms to stress factors. The paper deals with the effect of рН, different concentrations of elemental sulfur, hydrogen sulfide and presence of various electron acceptors on the growth and sulfidogenic activity of bacteria Desulfuromonas sp. YSDS-3. The calculation of C/S ratio for sulfur-reducing bacteria Desulfuromonas sp. YSDS-3 was made, with the comparison with similar parameters of sulfate-reducing bacteria. In the medium with elemental sulfur, concentration of hydrogen sulfide increased with the concentration of elemental sulfur. Bacteria Desulfuromonas sp. YSDS-3 accumulated their biomass in the most effective way at the concentration of elemental sulfur of 10–100 mM. In the medium with polysulfide form of sulfur at the neutral pH, bacteria produced hydrogen sulfide and accumulated biomass the best. Hydrogen sulfide at the concentration of 3 mM did not inhibit the bacterial growth, but further increase in the hydrogen sulfide concentration inhibited the growth of bacteria. The bacteria did not grow at the hydrogen sulfide concentration of 25 mM and above. As the concentration of elemental sulfur and cell density increases, sulfidogenic activity of the bacteria grows. Presence of two electron acceptors (S and K2Cr2O7, S and MnO2, S and Fe (III)) did not affect the accumulation of biomass of the bacteria Desulfuromonas sp. YSDS-3. However, under such conditions the bacteria accumulated 1.5–2.5 times less hydrogen sulfide than in the test medium. After 12–24 h of cultivation, different concentrations of elemental sulfur had a significant effect on the sulfidogenic activity. However, during 3–16 days of cultivation, the percentage of effect of elemental sulfur concentration decreased to 31%, while the percentage of effect of cell density increased threefold. Presence in the medium of the electron acceptors (Cr (VI), MnO2, Fe (III)) alternative to elemental sulfur led to a significant decrease in the content of hydrogen sulfide produced by sulfur-reducing bacteria.

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Retinol deficiency in animals: Etiopathogenesis and consequences

Skliarov

Fedorenko

Naumenko

et al. 2020

Regul. Mech. Biosyst.

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Infertility is widespread for all species of animals and causes significant economic losses to livestock due to the loss and shortage of offspring, their reduced viability and, consequently, increased morbidity and mortality. Alimentary-deficiency factors are among the commonest causes of infertility, from which A-vitamin deficiency should be singled out. The precursor of vitamin A in the body is carotene, which is an unstable compound which is easily destroyed even under the influence of moderate factors of influence, in connection with which its deficiency is global, especially at the end of the winter – stall period of keeping animals. Accordingly it is the leading etiological factor of retinol deficiency infertility. As a result, the body has two negatives that act in parallel: carotene / vitamin A deficiency adversely affects the organs, the constituent and major functional unit of which is the secretory epithelial cell, and the free radical oxides formed in high concentration are extremely effective in destroying the cells, weakening antioxidant protection. Vitamin A has a significant effect on the reproductive function of animals both directly and indirectly. It is necessary to ensure the structure and functioning of the epithelial tissues of the organs of regulation and performance of sexual function, and therefore the physiological development of the fetus and the course of pregnancy, parturition and postpartum period, ovo- and spermiogenesis, the manifestation of sexual reflexes. Instead, its deficiency underlies the etiology and pathogenesis of retinol deficiency infertility of animals, causing changes in individual indices of homeostasis and prooxidate-antioxidant system, morphostructure of the reproductive and endocrine organs, hormonal status, sperm quality and reproductive function. The consequence is the emergence and development of gynecological, andrological, mammological and perinatal (ante-, intra-, post- and neo-) pathologies. At the same time, the addition of carotene or retinol to the diets of animals or their oral administration in cases of deficiency of vitamin A prevents impaired reproductive function. The study of the features of the etiopathogenesis of retinol deficiency infertility of animals allows programs of complex diagnostics, therapy and prevention to be developed which provide determination of carotene and vitamin A content and replenishment of the organism in cases of their deficiency.

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Факторы, Влияющие На Уровень Воспроизведения Коров В Современном Молочном Скотоводстве

Cited by 3 publications

References 0 publications

Elements of Dna-Technology Forming Quality and Safe Raw Materials

Elements of Dna-Technology Forming Quality and Safe Raw Materials

Effect of abiotic factors on sulfidogenic activity of bacteria Desulfuromonas sp.

Retinol deficiency in animals: Etiopathogenesis and consequences

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