<abstract xmlns="http://www.w3.org/1999/xhtml">

In cows embryo transfer occurs on the 7th day of the oestrous cycle. Embryo survival and successful pregnancy depend on many factors, including early interaction between embryo and endometrium. Therefore, the aim of our research was to describe histo-morphological characteristics of endometrium in donor and recipient cows on obtaining and transfer day, respectively (7th day of the oestrus cycle). In addition, progesterone and oestradiol levels, the ipsilateral and contralateral corpus luteum, animal age, lactation number and days postpartum were determined. The results of the study revealed a significant difference in endometrial gland cell size, vacuolisation of glandular epithelium cytoplasm, and stromal oedema in the donor and recipient cows. However, these parameters were related only to the level of progesterone in the blood, and no other investigated factors in this study.
</abstract>

In cows embryo transfer occurs on the 7th day of the oestrous cycle. Embryo survival and successful pregnancy depend on many factors, including early interaction between embryo and endometrium. Therefore, the aim of our research was to describe histo-morphological characteristics of endometrium in donor and recipient cows on obtaining and transfer day, respectively (7th day of the oestrus cycle). In addition, progesterone and oestradiol levels, the ipsilateral and contralateral corpus luteum, animal age, lactation number and days postpartum were determined. The results of the study revealed a significant difference in endometrial gland cell size, vacuolisation of glandular epithelium cytoplasm, and stromal oedema in the donor and recipient cows. However, these parameters were related only to the level of progesterone in the blood, and no other investigated factors in this study.

Histological Characteristics of the Endometrium and its Affecting Factors in Dairy Cattle <italic>(Bos taurus)</italic> on Embryo Transfer Day

Latvia University of Life Sciences and Technologies

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

This work is licensed under the Creative Commons Attribution 4.0 International License.

Histological Characteristics of the Endometrium and its Affecting Factors in Dairy Cattle  on Embryo Transfer Day

In cows embryo transfer occurs on the 7th day of the oestrous cycle. Embryo survival and successful pregnancy depend on many factors, including early...

Histological Characteristics of the Endometrium and its Affecting Factors in Dairy Cattle (Bos taurus) on Embryo Transfer Day

Publicado en línea: 18 may 2023

Páginas: 117 - 125

Recibido: 19 may 2022

Aceptado: 15 abr 2023

DOI: https://doi.org/10.2478/prolas-2023-0017

Palabras clave
endometrium morphology, oestrous, multiple ovulation, progesterone

© 2023 Inga Pigiņka-Vjačeslavova et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Histological Characteristics of the Endometrium and its Affecting Factors in Dairy Cattle (Bos taurus) on Embryo Transfer Day

Publicado en línea: 18 may 2023

Páginas: 117 - 125

Recibido: 19 may 2022

Aceptado: 15 abr 2023

DOI: https://doi.org/10.2478/prolas-2023-0017

Palabras claveendometrium morphology, oestrous, multiple ovulation, progesterone

© 2023 Inga Pigiņka-Vjačeslavova et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Palabras clave
endometrium morphology, oestrous, multiple ovulation, progesterone