Quantitative studies on spermatogenesis in buffalo (Bubalus bubalis).

نویسندگان

  • G S Bilaspuri
  • S S Guraya
چکیده

The qualitative behaviour of spermatogenetic cells and Sertoli cells in the buffalo (Bubalus bubalis) was studied by identifying 8 stages of the seminiferous epithelium cycle based on meiotic division and morphology as well as the position of more mature spermatids. To achieve better results, stages 1, 2, 3, 4 and 8 were sub-divided. Six peaks of spermatogonial mitosis suggested six generations of spermatogonia. Of these, three were due to A (A1, A2, A3), two to B (B1, B2) and one to intermediate spermatogonia. However, another category of spermatogonia (A0), which divided rarely, were also present at all stages of the cycle. A1, A3, ln-, B1-spermatogonia and secondary spermatocytes showed 20, 18.75, 10.2, 15.5 and 10 p. 100 degeneration, respectively, No degeneration was observed in A2 and B2-spermatogonia, primary spermatocytes or spermatids. The degeneration of these various spermatogenetic cells greatly affected the efficiency of spermatogenesis.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Correlation of Serum Lipids and Lipoproteins with Trace Elements in Water Buffalo (Bubalus bubalis)

To evaluate the correlations of the serum concentrations of trace elements with lipids and lipoproteins in water buffalo (Bubalus bubalis), the serum concentrations of cholesterol, triglyceride, total lipids, very low density lipoproteins (VLDL-cholesterol), low density lipoproteins (LDL-cholesterol) and high density lipoproteins (HDL-cholesterol) and their correlations with serum concentration...

متن کامل

Schistosoma mansoni: on the possibility of Indian buffalo (Bubalus bubalis) being experimentally infected.

Male Indian buffalo (Bubalus bubalis) calves were submitted to Schistosoma mansoni infection by percutaneous, oral and subcutaneous routes. No worms or eggs were found in four of the animals tested. Bubalus bubalis appears to be refractory for S. mansoni.

متن کامل

Cryopreservation of in situ cool stored buffalo (Bubalus bubalis) epididymal sperm

The objectives of this study were to investigate the effects of testis-epididymis cool storage on viability and progressive motility of buffalo epididymal sperm (EP) and to compare the influences of two basic semen extenders on post thaw EP viability and progressive motility. Abattoir collected buffalo testicles were allotted to three storage times (0 h: n = 10; 24 h: n = 10 and 48 h: n = 12). ...

متن کامل

DGAT1 and ABCG2 polymorphism in Indian cattle (Bos indicus) and buffalo (Bubalus bubalis) breeds

BACKGROUND Indian cattle (Bos indicus) and riverine buffalo (Bubalus bubalis) give a poor yield of milk but it has a high fat and protein percentage compared to taurine cattle. The identification of QTLs (Quantitative Trait Loci) on BTA14 and BTA6 and its subsequent fine mapping has led to identification of two non conservative mutations affecting milk production and composition. Our objective ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Reproduction, nutrition, developpement

دوره 20 4A  شماره 

صفحات  -

تاریخ انتشار 1980