Anatomical Study on Domestical Fowl (Gallus domesticus) Reproductive System

Abstract

Lately, researchers have taken into consideration studies on birds since they represent an excellent nutritional source. There are several classical descriptions of the male reproductive tract, always aiming at establishing a correlation with shape, testicular size, age and sexual maturity. This study analyzed 50 male Gallus domesticus, 1 to 64 weeks old. The birds were collected with 10 days and then weekly until 24 weeks, following 37, 48, 59 and 64 weeks, and sacrificed by cervical displacement. It was observed the sintopies of testis with the other organs. Further, it was done the testicular measurement and then the statistical analysis by following the model of testis weight variation due to the animal age. Our results showed that the maximum weight of the right and left testes occurred with 167 and 210 days, respectively, what made us infer this species sexual maturity in this period.

Localization of sterodogenic acute regulartory (StAR) protein in testis of Thai red jungle fowl (Gallus gallus gallus)

“…In general, testicular shape of domestic birds or fowls at sexual maturity period (~ 24 weeks or 167 days based on BULL, MARTINS, CESÁRIO et al, 2007) is oval structure (ARTONI, 1993;AMER and SHAHIN, 1975;BULL, MARTINS, CESÁRIO et al, 2007). Obviously, the shape of mature testes (Figure 1) in Thai red jungle fowl (Gallus gallus gallus) corroborate with those investigations.…”

“…Three males of Thai Gallus gallus gallus at 24 th weeks (age and sexual maturity (described in BULL, MARTINS, CESÁRIO et al, 2007) were provided by a rural farm from Amphore Nampong, Khon Kaen province, Thailand. These animals (F1 generation) were bred from the same wild parent that they were caught from same jungle and further fed them for three months.…”

“…The reproductive system of avians including domestic chickens in terms of general gross morphology and histology has been well documented (PARKER, MCKENZIE and KEMPSTER, 1942;BENNETT, 1947;LAKE, 1957;LEROY, BARBIER and AUZANNEAU, 1968;BUDRAS and SAUER, 1975a, b;KUGLER, 1975;MERCADANTE, ORSI, VICENTINI et al, 1983;BULL, MARTINS, CESÁRIO et al, 2007). In addition, the molecules involved in the steriodogenesis like sterodogenic acute regulartory (StAR) protein in chicken were also determined (SECHMAN, PAWLOWSKA and HRABIA, 2011;SECHMAN, ANTOS, KATARZYŃSKA et al, 2014).…”

Morphological and HistochemicalStudy of Small Intestine InIndigenousDucks (Anasplayrhynchos)

“…Poultry and eggs represent an excellent nutritional source and make up a significant part of peoples diets [1]. Feed represents a major component in the cost of poultry production, considerable efforts have been made in recent years to select more efficient birds [2].…”

The Cycle Event of Spermatogenesis and Spermiogenesis in the Testes of Indigenous Duck (Anas Platyrhynchos)

“…There were some research on the male reproductive tract of domestic birds (1,2). On the other hand, some of the studies were mainly concerning the physiological and endocrinological aspects which were carried out by (3,4,5).…”