EFFECT OF PUBERTY AND SEXUAL DEVELOPMENT ON DAILY SPERM PRODUCTION AND EPIDIDYMAL SPERM RESERVES OF PIAU BOARS

被引：8

作者：

CASTRO, ACS ^{[1
]}

CARDOSO, FM ^{[1
]}

FRANCA, LR ^{[1
]}

机构：

[1] FED UNIV MINAS GERAIS,INST BIOL SCI,DEPT MORPHOL,POB 2486,BR-31270 BELO HORIZONTE,BRAZIL

来源：

ANIMAL REPRODUCTION SCIENCE | 1991年 / 25卷 / 01期

关键词：

D O I：

10.1016/0378-4320(91)90011-N

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Daily sperm production and epididymal sperm reserves were estimated in Brazilian Piau boars, castrated from 1 day to 12 months of age. Elongated spermatids and/or spermatozoa were first detected in testes and epididymides at 4-5 months (puberty). Sperm reserves and daily sperm production increased progressively in the post-pubertal phase of sexual development (6-9 months), but from 10 months onwards the values became stable, thus indicating the achievement of adult levels of sperm production at this age. Sperm production rates and sperm storage capacity of Piau boars are limited by the small size of their reproductive organs, as compared to those of boars of improved breeds.

引用

页码：83 / 90

页数：8

共 26 条

[1] SPERM PRODUCTION OF HOLSTEIN BULLS DETERMINED FROM TESTICULAR SPERMATID RESERVES, AFTER CANNULATION OF RETE TESTIS OR VAS-DEFERENS, AND BY DAILY EJACULATION [J].

AMANN, RP ;

KAVANAUGH, JF ;

GRIEL, LC ;

VOGLMAYR, JK .

JOURNAL OF DAIRY SCIENCE, 1974, 57 (01) :93-99

[2] REPRODUCTIVE CAPACITY OF DAIRY BULLS .1. TECHNIQUE FOR DIRECT MEASUREMENT OF GONADAL AND EXTRA-GONADAL SPERM RESERVES [J].

AMANN, RP ;

ALMQUIST, JO .

JOURNAL OF DAIRY SCIENCE, 1961, 44 (08) :1537-&

[3]

AMANN RP, 1970, TESTIS, P443

[4]

AMANN RP, 1967, J AM SCI, V25, P917

[5]

BAILEY NTJ, 1974, STATISTICAL METHODS, P78

[6] METHODS FOR QUANTIFYING MAMMALIAN SPERMATOGENESIS - REVIEW [J].

BERNDTSON, WE .

JOURNAL OF ANIMAL SCIENCE, 1977, 44 (05) :818-833

[7]

EGBUNIKE G N, 1975, Zuchthygiene (Berlin), V10, P184

[8]

EGBUNIKE GN, 1980, INT J ANDROL, V3, P210, DOI 10.1111/j.1365-2605.1980.tb00110.x

[9]

EGBUNIKE GN, 1981, ANDROLOGIA, V13, P284

[10]

EGBUNIKE GN, 1978, J REPROD FERTIL, V54, P245, DOI 10.1530/jrf.0.0540245

← 1 2 3 →