Anion gap as bio-diagnostic index in prediction of dystocia, retained placenta and delayed uterine involution of Baladi goat (Field study)

摘要

Objective:To assess the anion gap (AG) validity in prediction the goat''s fertility before parturition.Methods: This study was carried out on two groups (20/20, aged 4–6 years and weighted 30–43 kg) of pluriparous pregnant Baladi goats. Animals were subjected to clinical examination, blood sampling to assess serum biochemical parameters in correlation with utrasonographic assessment of uterine horn involution (UTI) and placental dropping time after kidding. Unpaired studentt–test was used to detect the significance of differences (P<0.05). Correlation coefficient was used to study the relationships among the different assessed parameters, analysis (r) was assigned atP<0.05 using the same statistics program.Results:Results revealed that there were highly significant differences (P<0.05) between normally and abnormally parturated goats concerning Cl–, K+, Na+, P, Mg2+, Total/Ca2+, albumin, glucose and AG. Goats suffered from dystocia having high levels of HCO3–, cortisol and lactate. Additionally, there were significant differences (P<0.05) between normally and abnormally parturated goat does regarding the process of UTI starting from 3rd to 10th wk after parturition. Furthermore, there was a highly significant difference (P<0.05) between normally and abnormally parturated goat does concerning their placental dropping time;where, distressed/abnormally parturated goat having the longest time. Furthermore, there were highly strong correlation coefficient between Mg2+, K+, Na+, HCO3–, glucose, albumin, AG and corrected AG concentrations during goat''s prepartum period and UTI, placental dropping time.Conclusions:Reporting serum bio-chemical changes and AG during goat''s prepartum period could be used as diagnostic tool to judge the normality of parturition process, placental dropping, UTI and genital health, in other word, could be used as predictor for goat''s fertility prior to parturition.