Tampilan Vulva Sapi Perah yang Disinkronisasi dengan Hormon Prostaglandin pada Umur yang Berbeda

Abstract

The aim of this research was to observe the changes in appearance of vulva during estrus of dairy cows at different ages. There were 32 females with 2 years old (n = 2), 3 years old (n = 18), 4 years old (n = 8) and 5 years old (n = 4). Dairy cows were synchronized using 50 mg / head of Prostaglandin F2α. Calipers were used to measure the length and width of the vulva as swallenness data, clinical therrnometers were used to obseve temperature of vulva and scoring was conducted to evaluate the vulva color. Data were carried out at 48, 72, 78, 84, 90, 120, 144 and 408 hours after injection of hormon. The data were analyzed with non parametric using Kruskal-Wallis H test, if any significant difference was tested with Mann-Whitney U test using Statistical Package for the Social Science (SPSS) 21. Results of analysis test for swelling of vulva on 120th observation hour (P<0,05., χ 2 = 9,943) and temperature of vulva on 84th observation hour (P<0,05., χ 2 = 8,37). While, the color of vulva did not show any significant different. In conclusion of this research, there was no significant difference on appearance of vulva.

Estrous Responses of Kejobong Goat Synchronized using Progesterone Hormone

“…Those will causes an increase in vascularity or blood vessels accumulate in the vulva area which causes the vulva color to become reddish. This is in accordance with Akbar et al [10], that Epinephrine and Cortisol work simultaneously when in estrous condition by increasing blood pressure in capillaries which have thin membranes. Therefore, they will look reddish.…”

“…As the level of estrogen flowing in the blood increases under the influence of the main control GnRH hormone, at the same time there is the secretion of Corticotropin Releasing Hormone (CRH) which stimulates the secretion of Adenocorticotropin Hormone (ACTH) in the anterior pituitary. Akbar et al [10] stated that ACTH hormone functions to stimulate the secretion of Cortisol hormone in the Adrenal Cortex. As Cortisol begins to be secreted, Ephinephrine and Norepinephrine are also secreted by the Adrenal Medulla.…”

“…Cortisol affects glucocorticoid receptors to regulate blood sugar levels in the body along with the effect of ACTH in regulating water retention in the kidneys to remain normal. Akbar et al [10] stated that when blood sugar levels increase and was not balanced with water conditions in the body, it would cause the circulating blood to have a high concentration. In this condition, Ephinephrine and Norepinephrine will increase the contraction of blood vessels by activating adrogenic receptors in blood plasma.…”

“…Plasma protein in the capillaries will come out into the intestine and accumulate continuously to cause edema which is identified as swelling vulva. Akbar et al [10] stated that the working system of cortisol and epinephrine can cause an increase in capillary permeability which is anatomically very thin and easy to change capillary membranes. So that blood vessel plasma proteins will come out into the intestine and accumulate continuously, resulting in edema.…”

“…Genital activity due to the influence of hormones that occurs during heat causes a fluctuating increase in body temperature. Akbar et al [10] stated that the GnRH hormone has a major role in genital activity so that there is an increase in body temperature and vulvar temperature during estrous. Vulva temperature which tends to fluctuate in each groups can be caused by the instability of the metabolic process of livestock cells in generating heat around the vulva.…”