Seasonal variations in serum pregnancy associated glycoproteins during early pregnancy in Aardi goats in central Saudi Arabia
Journal Title: Asian Pacific Journal of Reproduction - Year 2017, Vol 6, Issue 5
Abstract
Objective: To accurately detect pregnancy in local Aardi goats of Saudi Arabia before day 30 of pregnancy by using serum caprine pregnancy associated glycoproteins (caPAG) concentrations and to evaluate the effects of heat stress on early pregnancy and on caPAG concentrations in pregnant and non-pregnant goats. Methods: This study was to confirm the reliability of our methods in different seasons of the year. A new protocol to evaluate and improve Aardi goats' reproductive performance was implemented during summer and winter months. A total of 60 healthy mature Aardi goats were used (30 and 30 in the summer and winter, respectively). All were synchronized using an ovsynch protocol and then naturally mated (NM) to mature tested bucks. Conception rates and caPAG were measured and pregnancy was verified by ultrasonography. Results: Regardless of season, however, on day 23 and 35 post-NM, caPAGs were higher in sera of pregnant (P<0.05) than in non-pregnant goats, while there was no difference in caPAG concentrations on day 15. On day 23 and 35 post-NM, serum caPAG concentrations were higher (P<0.001) in the pregnant winter group than in the pregnant summer group, while no differences were found in non-pregnant goats. Measuring serum caPAG concentrations proved to be easy and accurate in assessing early stages of pregnancy (as early as 23 days post-NM) during both summer and winter seasons. Conclusions: It can be concluded that pregnancy rates were not affected by seasonal differences. The modified ovsynch program can be advantageous and worthwhile for its ease of use. When we add the accuracy of caPAG tests, such a program will help in detecting pregnancies in Aardi goats as early as 23 days post-NM, regardless of the season.
Authors and Affiliations
Mohamed J Al-Hassan, Kamal A Al-Samawi
Keywords
Related Articles
- EP ID EP243323
- DOI 10.4103/2305-0500.215934
- Views 206
- Downloads 0
Prevalence of various pathological conditions in female buffaloes (Bubalus bubalis)
The present review article has described the prevalence of various pathological conditions of reproductive system of female buffaloes starting from ovary to vulva and vagina. Various pathological conditions were analyzed...
Male reproductive hormones and semen quality
Male reproductive functions are mediated by different hormones whose orchestrations remain a major research interest. The ‘master’ regulator hormonal axis is the hypothalamo- pituitary-gonadal/testicular axis which is le...
Tinospora cordifolia attenuates antipsychotic drug induced hyperprolactinemia in Wistar rats
Objective: To evaluate the anti-hyperprolactinemic effect of methanolic extract of Tinospora cordifolia against antipsychotic/neuroleptic drug induced hyperprolactinemia. Methods: A total of 48 Wistar albino rats were ch...
Non-ischemic priapism in dog: Case report
Bulldog with unilateral cryptorchidism was admitted to our clinic suffering from a persistent erection for 2 d. The animal was left for the first time for breeding without observation. Penis was hyperaemic, oedematous wi...
Pregnancy outcome of lactating dairy cows assigned for Presynch-Ovsynch synchronization program and inseminated either at detected standing heat or at scheduled fixed time
Objective: To determine if insemination at standing heat results in a similar or higher pregnancy rate compared with fixed time artificial insemination, and to study some factors affecting the pregnancy rate. Methods:...