The morphological and histological study of chicken left ovary during growth and development among Hy-line brown layers of different ages

Mfoundou, Jos Dorian Lawson; Guo, Yajun; Liu, M.M.; Ran, Xueqin; Fu, Dongyong; Yan, Zunqiang; Li, M.N.; Wang, X.R.

doi:10.1016/j.psj.2021.101191

Cited by 16 publications

(15 citation statements)

References 34 publications

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“…The findings were in accordance with Gupta et al (1988), who reported that the non-bursting form of atresia generally affects small follicles less than 1 mm in diameter in the domestic fowl. However, it contradicts the findings of Mfoundo et al (2021), who reported that atresia was seen from 3 weeks of age onwards in Hy-Line Brown chickens. The glandular form of atresia was often noticed in growing stromal follicles arrested at Stages I and II of development, involving interstitial cell hypertrophy and diffusion of interstitial glands into the adjacent stroma, besides other apoptotic changes.…”

Section: Discussioncontrasting

confidence: 96%

Section: Discussionmentioning

confidence: 81%

“…The germinal epithelium of the left ovary varied from simple columnar to simple tall cuboidal during the early phase, and simple cuboidal to simple squamous in the transitional and mature phases, respectively. Mfoundo et al (2021) also reported the cuboidal shape of germinal epithelium in the ovary of 1‐week‐old chicks and thin germinal epithelium in 1‐ to 2‐month Hy‐LBrown female chickens. The cortex was well differentiated from the medulla in the early stages of ovarian development in accordance with the findings of Gonzalez‐Moran (2011) in day‐old White Leghorn chicks.…”

Section: Discussionmentioning

confidence: 90%

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Posthatch developmental changes in the ovary with emphasis on follicular development and atresia in the native chicken (Uttara fowl) of Uttarakhand, India

Mohd,

Saleem,

Choudhary

et al. 2023

Anat Histol Embryol

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This experiment was designed to investigate the postnatal development of the ovary in the Uttara fowl chicken and was conducted on 54 apparently healthy female birds divided into different age groups, namely Day 1 and Weeks 1, 4, 8, 12, 16, 20, 24, 28 with six birds each. During postnatal development, the left ovary gradually increased in size and complexity. The segmentation of the ovary started by 4 weeks, follicular eruption by 8 weeks, small liquor follicles (1–5 mm) appeared by 16 weeks, pre‐hierarchical follicles by 20 weeks and hierarchical follicles by 24 weeks of age. The cortex was distinctly differentiated from the medulla in the early stage of ovarian development. However, the division between cortex and medulla was gradually obscured with age (transitional stage) and distinction was completely lost in the mature ovary. The different stages of follicular development in the chicken ovary were classified as primordial, primary, growing at Stage I, II and III stromal follicles besides pre‐hierarchical and hierarchical surface follicles. The primordial and primary follicles showed cytoplasmic sudanophilic substances, especially in the Balbiani's yolk body, indicating the presence of lipids (Sudan Black B) with no activity for neutral polysaccharides (periodic acid Schiff method). It was observed that apoptotic changes may affect any stage of developing follicle resulting in arrested growth and atrophy. An early form of follicular atresia was the fate of the growth‐arrested primordial and primary follicles, whereas the glandular form of atresia was commonly observed in growing follicles arrested at Stages I and II. The scanning electron micrographs unveiled the follicles as hollow oval structures with a follicular lumen lined by the perivitelline membrane (glycoprotein membrane) having lacunae giving a honeycomb‐like appearance.

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Section: Discussioncontrasting

confidence: 96%

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 90%

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Posthatch developmental changes in the ovary with emphasis on follicular development and atresia in the native chicken (Uttara fowl) of Uttarakhand, India

Mohd,

Saleem,

Choudhary

et al. 2023

Anat Histol Embryol

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“…Notably, follicles are in a very slow-growth phase from 1 to 3 weeks of age, entering a fast-growth phase from 4 to 16 weeks and bulging the ovarian tissue. In addition, atretic follicles at various regression stages are observable from 3 weeks of age [ 48 ]. The onset of egg-laying time in chickens occurs at about 20–21 weeks.…”

Section: Ovarian Follicles At Young and Old Agesmentioning

confidence: 99%

Female Germ Cell Development in Chickens and Humans: The Chicken Oocyte Enriched Genes Convergent and Divergent with the Human Oocyte

Rengaraj

Han

2022

IJMS

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The development of germ cells and other physiological events in the differentiated ovary of humans are highly conserved with several mammalian species, except for the differences in timing. However, comparative knowledge on this topic is very scarce with respect to humans and lower vertebrates, such as chickens. In chickens, female germ cells enter into meiosis around embryonic day (E) 15.5 and are arrested in meiotic prophase I as primary oocytes. The oocytes arrested in meiosis I are accumulated in germ-cell cysts; shortly after hatching, they are enclosed by flattened granulosa cells in order to form primordial follicles. In humans, the process of meiotic recombination in female germ cells begins in the 10–11th week of gestation, and primordial follicles are formed at around week 20. In this review, we comprehensively elucidate both the conservation and the species-specific differences between chickens and humans with respect to germ cell, oocyte, and follicle development. Importantly, we provide functional insights into a set of chicken oocyte enriched genes (from E16 to 1 week post-hatch) that show convergent and divergent expression patterns with respect to the human oocyte (from week 11 to 26).

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“… Yang et al. (2019) and Mfoundou et al. (2021) showed that egg production of geese is related to the follicular development.…”

Section: Introductionmentioning

confidence: 99%

Chicken ovarian follicles morphology and growth differentiation factor 9 gene expression in chicken ovarian follicles: review

Hlokoe

Tyasi

Gunya

2022

Heliyon

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Ovary follicular development is a progressive system from the beginning of small cortical follicles to the ovulation of hierarchical follicles. The review was conducted to provide information on the indigenous chickens commonly used for egg production, chicken ovarian follicles morphology and expression of growth differentiation factor 9 (GDF9) gene in ovarian follicles and its relationship with egg production. The research databases used in the study include google scholar, Science Direct, PubMed, JSTOR and Cambridge Core. Google, Yahoo and Baidu search engines were used to search the information. In this study, the papers selected for use were original research articles and reviews to ensure that the information used was from research results. Besides, only recent English papers, 2010-2021, were used. The keywords used to search for articles were chicken ovarian follicles, ovarian morphology and GDF9 gene expression. The documents showed that pre-hierarchical follicles include many small and large white follicles, which are about 2-5mm in diameter and 5 to 6 small yellow follicles (SYF) that are about 5-10mm in diameter. Preovulatory follicles are about five to six in number and above 10mm in diameter, with the sizes from F6 to F1, with F1 as the largest follicle. Further, the studies revealed that GDF9 gene mRNA is expressed in the highest concentration in small yellow follicles and other studies reported that the expression of GDF9 gene has been found in follicles of the primary to preovulatory stages in chickens. This review concludes that the GDF9 gene expression is mainly throughout follicular growth and it stimulates the proliferation of pre-hierarchical granulosa cells. The increased egg production in chickens depends on progressive developmental stages and the growth of ovarian follicles.

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The morphological and histological study of chicken left ovary during growth and development among Hy-line brown layers of different ages

Cited by 16 publications

References 34 publications

Posthatch developmental changes in the ovary with emphasis on follicular development and atresia in the native chicken (Uttara fowl) of Uttarakhand, India

Posthatch developmental changes in the ovary with emphasis on follicular development and atresia in the native chicken (Uttara fowl) of Uttarakhand, India

Female Germ Cell Development in Chickens and Humans: The Chicken Oocyte Enriched Genes Convergent and Divergent with the Human Oocyte

Chicken ovarian follicles morphology and growth differentiation factor 9 gene expression in chicken ovarian follicles: review

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