The article presents data of experimental studies of aspartate aminotransferase activity of liver enzymes of goats in Khizi - Khachmaz zone of Azerbaijan in different seasons of the year. The enzymatic activity was determined spectrophotometrically on a Specol 1500 spectrophotometer (Analitik Jena) at a wavelength of λ=540 nm. The maximum average increase in aspartate aminotransferase activity of liver enzymes of invasive goats in spring was 2.66 times, in summer, autumn and winter periods in 2.03, 1.47 and 1.37 times, in comparison with the liver tissues of practically healthy animals. The maximum value of aspartate aminotransferase activity of liver enzymes of goats invaded by nematodes was noted in spring and summer, and minimal in autumn and winter, reaching values of: 102.5 ± 6.5; 78.3 ± 4.3 and 56.5 ± 2.3; 52.8 ± 1.3 U/L, respectively.

Organic pollution profile and anions of effluent from Challawa industrial layout and the water quality status of the receiving challawa River were thoroughly assessed following standard analytical procedures. Results indicated that both effluent and surface water showed the ranges 8.72-8.89 and 7.23-7.65 for pH, 28.6-30.2 and 27.56-28.23 oC for temperature, 135.56 mg/l - 154.34mg/l and 48.8mg/l - 86.46mg/l for sulphide, 325.67-358.98 and 156.43-241.98 mg/l, for chloride, 262.62-287.84 mg/l and 87.93-113.52 mg/l for BOD and, 674.24-863.24 mg/l and 243.47-294.48 mg/l for COD. The mean effluent sulphide, BOD and COD concentrations were found to be above the Nigerian Environmental Standards and Regulations Enforcement Agency (NESREA) acceptable limits for the discharge into surface water. Chloride level was above WHO limits for discharge into surface water but below NESREA limits. The concentration of sulphide, BOD and COD in surface water were also found to be above World Health organization (WHO) and the Nigerian Standard for Drinking Water Quality (NSDWQ) acceptable limits for portable water. The study revealed that effluent discharged from Challawa industrial layout has significant adverse influence on the overall water quality of the receiving Challawa River. The need to enforce adequate effluent treatments before discharge into surface water is strongly advocated to reduce potential environmental hazards.

The study was carried out to evaluate the semen characteristics of the three indigenous cocks and correlation among semen characteristics of each cock genotype. Fifteen  (15 )  local breeder cocks at  maturity   comprising three strains of  indigenous cocks (5 Frizzle, 5 Normal feathered  and 5  Naked Neck )   were  obtained  from local farmers  within the state  and used for the experiment . They were sexually matured cocks of about 14 – 18 months of age. One year study was carried out from September 2016 to August 2017. A total of 497 semen ejaculates was collected from the cocks by the abdominal message method and were assessed for routine laboratory methods. The highest mean value of semen volume (0.45ml) was obtained in frizzle feathered cocks while the lowest mean value of (0.31ml) was obtained in the naked neck cock. Coefficient of variability was highest in semen volume and ranged from 29.77% in the normal feathered to 43.69% in the frizzle feathered cock. The lowest variable semen characteristic was pH which showed percentage variability that ranged from 4.25% in the naked neck to 6.13% in the normal feathered cock. Coefficients of variation were similar for percent non motile sperm, semen concentration and percent abnormality with values between 12.67 and 15.60%. The highest coefficient of variation for semen volume in frizzle feather cocks is indicative of the potential of this genotype to be selected for improvement. In all the genotypes negative low phenotypic correlation coefficients as well as low positive correlation coefficients exist among most semen characteristics. Significantly high negative correlation coefficient exists between individual sperm motility and percent dead sperm cells in all the genotypes. The observed high negative significant correlation between individual sperm motility and dead sperm cells in all the genotypes is expected as increase in individual sperm motility would lead to decrease in percent dead sperm cells.