Reproductive Performance in Broody and Non-Broody Turkeys
نویسندگان
چکیده
منابع مشابه
Endocrinological and behavioural effects of p-chlorophenylalanine (PCPA) oral administration to broody turkey hens (Meleagris gallopavo).
Changes in plasma levels of prolactin and LH, feed intake, water consumption, behavioural pattern and ovarian activity were recorded after oral administration of PCPA to broody turkey hens. A decrease in prolactin concentration was measured, from day 3, in 3 out of the 5 birds treated with 100 mg PCPA/kg body weight (BW) for 3 consecutive days. In these hens, broodiness was disrupted on day 6 a...
متن کاملAssociation of polymorphisms for prolactin and prolactin receptor genes with broody traits in chickens.
Prolactin (PRL) is generally accepted as crucial to the onset and maintenance of broodiness in avian species. The prolactin receptor (PRLR) plays an important role in the PRL signal transduction cascade. Two candidate genes, PRL and PRLR, were screened for polymorphisms in the chicken, and their genetic effects on broodiness were evaluated. Pedigreed hens (n = 155) of the Blue-shell chicken, a ...
متن کاملAssociations between polymorphisms in the chicken VIP gene, egg production and broody traits.
1. In this study, the vasoactive intestinal peptide (VIP) gene was screened for variations by cloning and sequencing to analyse the association with chicken egg production and broodiness traits. 2. Sequencing revealed that 69 polymorphisms were found in a 9305-bp length of the chicken VIP gene, of which 39 were located in introns, 28 in 5' regulatory region, 1 in exon 6 (synonymous) and 1 in 3'...
متن کاملIdentification and Differential Expression of microRNAs in Ovaries of Laying and Broody Geese (Anser cygnoides) by Solexa Sequencing
BACKGROUND Recent functional studies have demonstrated that the microRNAs (miRNAs) play critical roles in ovarian gonadal development, steroidogenesis, apoptosis, and ovulation in mammals. However, little is known about the involvement of miRNAs in the ovarian function of fowl. The goose (Anas cygnoides) is a commercially important food that is cultivated widely in China but the goose industry ...
متن کاملExpression of plasma prolactin and pituitary prolactin mRNA around the broody cycle in Wan-xi White goose
A systematic evaluation of the dynamic changes of prolactin (PRL) around the whole cycle of broodiness in domestic fowl has not been performed. We started to investigate the overall changing profi le of PRL expression at both protein and mRNA levels from preto post-broodiness in Wan-xi White goose, an indigenous breed in East China. Th e onset of broodiness was recorded, and the plasma PRL conc...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1956
ISSN: 0032-5791
DOI: 10.3382/ps.0350763