Cervical mucus also contains several enzymes such as alkaline phosphatase (ALP), lactate dehydrogenase (LDH), and α -amylase ( Tsiligianni et al., 2003). Cervical mucus consists of 92-95% water, along with carbohydrates, amino acids, lipids, and a mixture of dissolved macromolecules such as proteins and polysaccharides ( Schumacher, 1970). The main functions of cervical mucus is sperm transportation and its role as a barrier against microbial infections. Its quality and quantity depend on the status of gonadal hormones during the estrous cycle ( Tsiligianni et al., 2001). Keywords | Cervical mucus, Aceh cattle, Estrogen, Pregnancy rateĬervical mucus is produced by endocervical secretory cells. The viscosity of cervical mucus also had an effect on the success of pregnancy in Aceh cattle. The groups with cervical mucus pH of 7 and 8 had higher rates of pregnancy (50%) than the groups with cervical mucus pH of 6 and 9. Higher levels of blood macrominerals (Na, K, Cl, Ca, P, and Mg) in female Aceh cattle resulted in greater viscosities of cervical mucus. Levels of total protein, total cholesterol, and glucose were correlated to the viscosity of the cervical mucus. In conclusion, there is no significant relationship between estrogen concentration and cervical mucus viscosity levels in Aceh cattle. An examination of cervical mucus showed different consistencies: five cows had mucus with a thick viscosity, with a 20% pregnancy rate two had mucus with a moderate viscosity, with a 50% pregnancy rate and one had mucus with a thin viscosity, with a 100% pregnancy percentage. Meanwhile, the groups with a cervical mucus pH 7 and 8 had a pregnancy rate of 50%. The pregnancy rate in cows with a cervical mucus pH of 6 and 9 was 0%. The estrogen concentrations of each type of cervical mucus, namely thick, moderate, and thin were 29.39☖.29 23.24±4.62 and 30.93 pg/mL, respectively. Blood and cervical mucus samples were collected during the first cervical mucus secretion. Afterward, observation of estrus signs was performed for 30 minutes at 06:00 a.m. Eight females Aceh cows aged 3-7 years old, with body weights of 150-250 kg were synchronized using a 25 mg single dose injection of PGF2 α. Abstract | This study aimed to investigate the relationship between cervical mucus viscosity and estrogen concentration, several blood biochemical profiles, and blood macro-mineral levels, as well as to determine the effect of cervical mucus viscosity and pH differences on pregnancy rates in Aceh cattle.
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