Influence of the Housing System on Sperm Productivity and Reproductive Capacity of Rabbits

Kotsiubenko, Anna A.; Gill, Mikhail; Kotsiubenko, Vladimir I.; Petrova, Elena

doi:10.2478/prolas-2022-0046

Cited by 2 publications

(2 citation statements)

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“…The concentration of the hormones luteinizing hormone (LH) and estradiol begins to increase before the onset of luteolysis (Baldrighi et al 2022). There is a slight surge in follicle-stimulating hormone (FSH), which does not stimulate the follicular wave of growth of dominant follicles in the phase of luteolysis in cows (Ginther et al 2013;Kotsiubenko et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Results of Ultrasound Studies of the Growth Dynamics of Dominant, Subdominant Follicles and Determination of Estradiol Concentration in the Preovulatory Period in Cows

2023

Int J Vet Sci

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The mechanism of natural selection of the dominant follicle and hormonal regulation of this process in cattle is still insufficiently studied. The purpose of the study was to study the dynamics of the growth of subdominant and dominant follicles in Holstein cows and optimize the technique of scanning the ovaries during the estrus cycle, measuring the parameters of follicle growth, analyzing the results of sonograms and determining the concentration of estradiol in the pre-ovulatory period. To study the growth dynamics of subdominant and dominant follicles, the method of scanning the ovaries of cows during the estrous cycle using PU2200Vet devices and the Mindray Z5 Vet ultrasound scanner equipped with a convex endorectal sensor with a frequency of 5.0-7.0MHz was used. Two or three waves of dominant follicle growth with a duration of 4 to 12 days were detected in the studied animals. The maximum area of dominant follicles ranged from 191.18 to 243.18mm 2 . It is proved that the growth of dominant follicles in cows during the spontaneous estrous cycle is accompanied by an increase in the subdominant follicle population, per dominant follicle corresponds from 13.66 to 21.0 subdominant follicle. According to the results of the study, the growth rate of dominant follicle was higher compared to the growth of subdominant follicle, the growth rate of dominant follicle was from 0.9 to 4.43mm/day, this indicator for subdominant follicle was from 0.26 to 1.40mm/day. In the pre-ovulatory period, cows have a decrease in the amount of estradiol in the blood serum. The use of Doppler ultrasound scanning of the blood vessels of the corpus luteum allows determining the functional activity of the corpus luteum of the estrous cycle.

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Section: Introductionmentioning

confidence: 99%

Results of Ultrasound Studies of the Growth Dynamics of Dominant, Subdominant Follicles and Determination of Estradiol Concentration in the Preovulatory Period in Cows

2023

Int J Vet Sci

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“…Since its introduction, lipofilling (also known as lipomodelling) has become increasingly popular. As a soft tissue filler, adipose tissue has many desirable properties: it is easily harvested, autologous, and can be reintegrated into recipient sites (Beck et al, 2014;Erdim et al, 2009;Kirkham et al, 2012;Kotsiubenko et al, 2021). However, fat grafting has an unpredictable resorption rate, so there is great interest in optimising this procedure to ensure consistent graft volume.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on clinical and morphological determination of the optimal cannula diameter for lipoaspirate harvest from rabbit inguinal fat pad

Pak¹,

Askarov²,

Kissamedenov³

et al. 2023

JAB

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Determining the most appropriate cannula diameter for lipoaspirate harvesting is important, both in terms of the quality and composition of the material obtained, and the ease of practical use of the cannula. The size of the cannula is one of the main factors affecting the qualitative characteristics of the obtained lipoaspirate sample for further use of adipose tissue. The purpose of the investigation was to clinically and histomorphometrically determine the optimal cannula diameter for lipoaspirate samples collection from rabbit inguinal fat pad in an experimental study. The methods of Animal models, Surgical procedures, Macroscopic examination, Histological examination, and Morphometric study were applied. There is a direct correlation between the percentage of connective tissue fibres in the lipoaspirate and the diameter of the cannula. The lack of clear criteria for selecting a lipoaspiration cannula is one of the limitations to obtaining generally accepted lipoaspiration protocols with subsequent use of adipose tissue. In this study, the animal experiment determined the most ideal cannula diameter suitable for collecting the largest amount of lipoaspirate for subsequent use.

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Influence of the Housing System on Sperm Productivity and Reproductive Capacity of Rabbits

Cited by 2 publications

References 0 publications

Results of Ultrasound Studies of the Growth Dynamics of Dominant, Subdominant Follicles and Determination of Estradiol Concentration in the Preovulatory Period in Cows

Results of Ultrasound Studies of the Growth Dynamics of Dominant, Subdominant Follicles and Determination of Estradiol Concentration in the Preovulatory Period in Cows

Experimental study on clinical and morphological determination of the optimal cannula diameter for lipoaspirate harvest from rabbit inguinal fat pad

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