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You searched for: Subject "ovarian follicles" Remove constraint Subject: "ovarian follicles" Journal British poultry science Remove constraint Journal: British poultry science
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1. Comparative development of the ovary and production, fertility and hatchability of eggs from traditional turkeys and a contemporary male-line fed ad libitum or restricted

Author:
Hocking, P.M.; Bernard, R.
Source:
British poultry science 1998 v.39 no.2 pp. 291-297
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; weight; restricted feeding; selection response; body weight; turkeys; egg weight; laying performance; embryonic mortality; photoperiod; abdominal fat; ad libitum feeding; oviducts;     Show all 13 Subjects
Abstract:
... 1. Ovarian function was assessed at first egg and at 44 and 54 weeks of age in traditional turkeys and in a male-line fed ad libitum or restricted to 0.5 of ad libitum during rearing. Egg production was recorded daily and fertility and hatchability were determined at 2 ages. 2. Age at sexual maturity did not differ between the 3 treatments. 3. The number of follicles at first egg in the male line ...
DOI:
10.1080/00071669889277
PubMed:
9649886

2. Ovarian follicular growth and maturity and follicular production of progesterone and oestradiol in response to porcine luteinising hormone and porcine follicle stimulating hormone in albino (S*AS) hens in vivo and in vitro

Author:
Su, H.; Silversides, F.G.; Villeneuve, P.
Source:
British poultry science 1999 v.40 no.4 pp. 545-551
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; hens; progesterone; estradiol; egg yolk; weight; diameter; genetic variation; blood chemistry; secretion; dosage; dose response; luteinizing hormone; follicle-stimulating hormone; genotype;     Show all 15 Subjects
Abstract:
... 1. The effects of the S*AS gene on follicular growth were studied by feeding Sudan IV and Sudan Black B, on follicular maturity by measuring P4 and E2 output of the 5 largest follicles (F1 to F5) in vitro, and on ovarian response (plasma progesterone, P4, and oestradiol, E2) to administration of porcine follicle-stimulating hormone (pFSH) and porcine luteinising hormone (pLH) in old laying hens. 2 ...
DOI:
10.1080/00071669987340
PubMed:
10579416

3. Ovarian follicular dynamics in selected and control (relaxed selection) male- and female-lines of broiler breeders fed ad libitum or on restricted allocations of food

Author:
Hocking, P.M.; Robertson, G.W.
Source:
British poultry science 2000 v.41 no.2 pp. 229-234
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; chickens; selection criteria; selection intensity; line differences; weight; abnormal development; oviducts; restricted feeding; age at first egg; ad libitum feeding; blood plasma; estrogens; blood lipids; triacylglycerols; abdominal fat; selection response;     Show all 17 Subjects
Abstract:
... 1. The reproductive structures of 4 broiler breeder lines fed ad libitum or restricted were compared at 1st egg. The lines were contemporary male- and female-lines and their respective progenitor lines maintained without selection for 20 years. 2. The selected lines were larger and had more hierarchical yellow follicles than the relaxed lines. The numbers of positions in the hierarchy were greater ...
DOI:
10.1080/713654904
PubMed:
10890222

4. Effects of menhaden oil and flaxseed in broiler diets on sensory quality and lipid composition of poultry meat

Author:
Gonzalez-Esquerra, R.; Leeson, S.
Source:
British poultry science 2000 v.41 no.4 pp. 481-488
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; turkeys; vaginal prolapse; vagina; collagen; photoperiod; restricted feeding; estradiol; age; blood plasma; oviducts; uterus; weight; turkey hens;     Show all 14 Subjects
DOI:
10.1080/713654967
PubMed:
11128390

5. Effects of ad libitum feeding on performance of different strains of broiler breeders

Author:
Heck, A.; Onagbesan, O.; Tona, K.; Metayer, S.; Putterflam, J.; Jego, Y.; Trevidy, J.J.; Decuypere, E.; Williams, J.; Picard, M.
Source:
British poultry science 2004 v.45 no.5 pp. 695-703
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; broiler breeders; breed differences; chicken breeds; ad libitum feeding; broiler feeding; genotype; feed intake; body weight; animal age; egg production; reproductive disorders; liveweight gain; sexual maturity; restricted feeding; egg fertility; miniature breeds; energy conversion; energy metabolism; laying performance; animal breeding;     Show all 21 Subjects
Abstract:
... 1. Tolerance to ad libitum feeding was compared in three genotypes of broiler breeder hens: a standard broiler breeder fed ad libitum (SA) or restricted (SR), a slow growing 'label' broiler breeder (L) and an experimental dwarf heavy broiler breeder (E). Two similar experiments were conducted in two distinct research centres. 2. Feed intake and body weight were measured every 3 weeks from hatch to ...
DOI:
10.1080/00071660400006537
PubMed:
15623225

6. Hormonal changes associated with ageing and induced moulting of domestic hens

Author:
Braw-Tal, R.; Yossefi, S.; Pen, S.; Shinder, D.; Bar, A.
Source:
British poultry science 2004 v.45 no.6 pp. 815-822
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; elderly; corticosterone; feed deprivation; tissue weight; estradiol; young animals; hormone metabolism; hens; hen feeding; hormone secretion; chicken breeds; calcium; abiotic stress; circadian rhythm; zinc; animal stress; progesterone; molting; egg production;     Show all 20 Subjects
Abstract:
... 1. The effect of age on ovarian function was studied in 245-, 350-, 500-, 700- and 800-d-old Lohmann hens. The effect of three different methods for moult induction on ovarian function and corticosterone concentration was studied in 500-d-old hens. 2. No significant reductions in ovarian weight or in number of follicles before the age of 700 d were found. The ability to produce progesterone and oe ...
DOI:
10.1080/00071660400012782
PubMed:
15697022

7. Limited effect of intense genetic selection for broiler traits on ovarian function and follicular sensitivity in broiler breeders at the onset of lay

Author:
Hocking, P.M.; Robertson, G.W.
Source:
British poultry science 2005 v.46 no.3 pp. 354-360
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; follicular development; restricted feeding; gonadotropins; broiler breeders; selection intensity; cockerels; age at first egg; pullets; heritability; reproductive traits; photoperiod; ad libitum feeding; ovulation; animal breeding; hens; selection criteria; breeding lines;     Show all 18 Subjects
Abstract:
... 1. Female chicks from 6 pure lines of broiler breeders were obtained from international broiler breeder companies. The lines were from three female and two male lines and a relaxed selection line derived from one of the male lines (M2) and maintained without selection for 25 years (generations). Replicate groups from each line were reared in floor pens and fed ad libitum . An additional group of t ...
DOI:
10.1080/00071660500098251
PubMed:
16050190

8. Effects of breeder hen age and dietary L-carnitine on progeny embryogenesis

Author:
Peebles, E.D.; Kidd, M.T.; McDaniel, C.D.; Tanksley, J.P.; Parker, H.M.; Corzo, A.; Woodworth, J.C.
Source:
British poultry science 2007 v.48 no.3 pp. 299-307
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; temporal variation; yolk sac; carnitine; liver; broiler breeders; hen feeding; fecundity; embryogenesis; egg weight; egg yolk; water content; egg hatchability; hens; broiler feeding; animal age; embryonic mortality; palmitoleic acid;     Show all 18 Subjects
Abstract:
... 1. Ross 308 broiler breeder hens were given diets containing 0 or 25 mg L-carnitine/kg (8 replications per treatment) from 21 weeks of age. 2. Hens were inseminated with semen from Ross broiler breeder males. In a common facility, subsequent progeny hatchability and embryonic mortality at 25, 30, 32, and 38 weeks of breeder age were evaluated. 3. Subsequent egg component weights, incubational egg ...
DOI:
10.1080/00071660701261278
PubMed:
17578692

9. Structural heterogeneity of yolk spheres in hierarchical follicles from hen ovary: a histochemical study

Author:
Parshad, R.K.; Kaur, R.; Natt, J.K.
Source:
British poultry science 2008 v.49 no.3 pp. 265-272
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; diameter; quantitative analysis; laying hens; carbohydrate content; lipid composition; egg yolk; protein content; histochemistry; phospholipids;     Show all 10 Subjects
Abstract:
... 1. Four types of yolk spheres with variable structure, chemical composition and frequency of occurrence in yolk plasma of hierarchical follicles (F4, F3, F2 and F1 with diameters of 10·0, 15·5, 20·0 and 35·0 mm, respectively) of the hen ovary were identified using histochemical methods for localising lipids, carbohydrates and proteins. 2. Yolk spheres of the first type (YS1) had a phospholipoprote ...
DOI:
10.1080/00071660802094198

10. Stochastic modelling of optimum initial body weight, daily weight gain and effect of genetic changes in ovulation rate and age at sexual maturity on total egg production of broiler breeders

Author:
Alvarez, R.; Hocking, P.M.
Source:
British poultry science 2009 v.50 no.1 pp. 135-143
ISSN:
0007-1668
Subject:
ovarian follicles,   etc   ; broiler breeders; ovulation; fecundity; body weight; liveweight gain; genetic variation; animal age; age at first egg; sexual maturity; stochastic processes; simulation models; egg production; photoperiod; artificial selection; broiler feeding; restricted feeding;     Show all 17 Subjects
Abstract:
... 1. A model that simulates the total production of eggs (TEP) in broiler breeders was used to predict the optimum initial (20 week) body weight (IBWexp), daily weight gains from 20 to 30 (DWGexp(20-30)) and 31 to 62 weeks of age (DWGexp(31-62)), age at photostimulation (affecting age at first egg, AFEexp), coefficients of variation of initial body weight (CV-IBWexp) and age at first egg (CV-AFEexp) ...
DOI:
10.1080/00071660802642137
PubMed:
19234938

11. Molecular cloning of the SMAD4 gene and its mRNA expression analysis in ovarian follicles of the Yangzhou goose (Anser cygnoides)

Author:
Huang, Z.; Yuan, X.; Wang, M.; Wu, N.; Song, Y.; Chen, Y.; Zhang, Y.; Xu, Q.; Chen, G.; Zhao, W.
Source:
British poultry science 2016 v.57 no.4 pp. 515-521
ISSN:
1466-1799
Subject:
ovarian follicles,   etc   ; Anser cygnoides; alternative splicing; animal proteins; animal reproduction; apoptosis; geese; gene expression; genes; hypothalamus; messenger RNA; molecular cloning; oviducts; phylogeny; quantitative polymerase chain reaction; tissues;     Show all 16 Subjects
Abstract:
... Mothers against decapentaplegic homolog 4 (SMAD4) is an important protein in animal reproduction. It plays pivotal roles in cellular pathways, including apoptosis. The expression profile of the SMAD4 gene in goose ovarian follicles has not been reported. In this study, the SMAD4 coding sequence was cloned from the Yangzhou goose. A phylogenetic analysis was performed and mRNA expression was examin ...
DOI:
10.1080/00071668.2016.1180670