Gross Morphological and Morphometric Studies of Oviduct in Three Genotypes of Nigerian Indigenous Laying Chickens

Abstract

Gross and morphometric studies were carried out on the oviducts of three Nigerian indigenous genotypes of chicken. Fifteen adult laying chickens of three genotypes {five female per genotype of Normal Feathered (NoF), Naked Neck (Na) and Frizzle Feathered (FF)} were bought from Mokwa local markets. They were quarantined for two weeks, stabilized for another week, live weights were taken and then slaughtered using Halal method. After careful evisceration, segments of oviduct were examined grossly and then weights, lengths, thickness and width of the segments were obtained. The mean weights, lengths and widths of the infundibulum, magnum, isthmus, uterus, vagina and entire oviduct of the three studied genotypes were not significantly different (P>0.05) from one another, except the width of uterus (P≤0.05). All the three genotypes have similar gross and morphometric patterns except that the uterus of Na and FF had significantly (P≤0.05), wider width compared to the NoF. This study in addition to its contribution to the knowledge of comparative avian anatomy up to genotype level, has also established a comparative baseline data for further gross and morphometric reproductive studies in these genotypes of Nigerian indigenous chickens.

Morphological changes of reproductive organs during egg formation of autochthonous Oravka hens

“…The current findings of oviduct which appeared to be long, less convoluted, highly vascular tube and occupied the most left side are similar to those recorded by Khokhlov and Kuznetcov (2007), Mahmud (2017). Similarly, Veterany and Jedlička (2002) reported that the oviduct of the hen was well-developed at the left side, atrophied at the right side and consisted of all five regions as described in the present study.…”

Anatomical, Morphological and Histological Studies of Infundibulum of Indigenous, Sonali and Rhode Island Red (RIR) Chickens (Gallus gallus domesticus L.) in Bangladesh

“…Infundibulum was the 1 st segment of the oviduct and it was funnel shaped in the upper portion and muscular tubular structure in lower portion which was similar with the findings of previous workers [1], [7]- [9], [12]. At 20-24 weeks of age, a narrow neck observed during the rapid development of infundibulum and not observed in lower age due to underdevelopment [11], [13].…”

“…In case of deshi chicken the mean length of infundibulum was 7.18±4.22 cm at 8-11 months whereas at 5 months it was 5.85 cm [21]. The length, width and weight of infundibulum in three genotypes of Nigerian indigenous laying chickens varied considerably [7]. The mean values were 4.33±0.60 cm as length, 2.03±0.3 cm as width and 0.68±0.02 g as weight in Normal Feather (NOF); 6.53±1.89 cm as length, 2.17±0.16 cm as width and 0.8±0.15 g as weight in Naked Neck Feather (NEF); 6.4±0.70 cm as length, 2.67±0.33 cm as width and 0.77±0.27 gm in Frizzle Feather (FF).…”

Morphometry of FEMALE Reproductive Organs of Rose- Ringed Parakeet (Psittacula krameri) in Breeding and non-breeding Seasons

“…Higher values of the width of oviduct during breeding season and significantly decreased during non-breeding season as depicted in (table 1). In Nigerian indigenous laying chickens, the mean width of the oviduct was recorded as (1.07±0.07 cm) (Ma, 2017). The width of oviduct of rose ringed parakeet was lower than Nigerian indigenous laying chickens because lower body weight and size.…”