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Animal Reproduction Science

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https://www.readbyqxmd.com/read/28705425/corrigendum-to-reproductive-cycles-of-marine-mammals-anim-reprod-sci-124-2011-184-193
#1
P Pomeroy
No abstract text is available yet for this article.
July 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28720311/evaluation-of-changes-in-blood-flow-of-the-uterine-artery-by-doppler-ultrasonography-during-the-estrous-cycle-in-lactating-bos-indicus-cows
#2
Mubbashar Hassan, Abdul Sattar, Muhammad Bilal, Muhammad Avais, Nasim Ahmad
The objective of this study was to evaluate the changes in uterine blood flow (UBF) based on the resistance index (RI) and the pulsatility index (PI) by Doppler ultrasonography throughout the estrous cycle in lactating Sahiwal cows (n=9). Cows were randomly selected during their spontaneous estrus. UBF was examined on alternate days in all cows during the estrous cycle. The results revealed that the mean RI values were higher (P<0.05) on day -1 (estrus) than on day 0 (ovulation). The mean RI values followed a consistent pattern on days 2, 4, 6, and 8 (metestrus to early diestrus) and were lower (P<0...
July 9, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28709735/genetic-variation-and-correlated-changes-in-reproductive-performance-of-a-red-tilapia-line-selected-for-improved-growth-over-three-generations
#3
Ngo Phu Thoa, Azhar Hamzah, Nguyen Hong Nguyen
The present study examines genetic variation and correlated changes in reproductive performance traits in a red tilapia (Oreochromis spp.) population selected over three generations for improved growth. A total of 328 breeding females (offspring of 111 sires and 118 dams) had measurements of body weight prior to spawning (WBS), number of fry at hatching (NFH), total fry weight (TFW) and number of dead fry (NDF) or mortality of fry including unhatched eggs at hatching (MFH). Restricted maximum likelihood (REML) analysis in a multi-trait model showed that there are heritable genetic components for all traits studied...
July 6, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28701287/effects-of-sex-pregnancy-and-season-on-insulin-secretion-and-carbohydrate-metabolism-in-horses
#4
Elisabeth Beythien, Manuela Wulf, Natascha Ille, Jörg Aurich, Christine Aurich
In pregnant mares, peripheral insulin antagonism channels glucose preferentially to the foetus. On the other hand, horses reduce their metabolic activity in winter. Taking these aspects of equine pregnancy and metabolism together, we hypothesized that glucose clearance from blood and the insulin response to glucose do not only change throughout gestation but also with season. To test this hypothesis, the glucose and insulin response to an oral glucose test and relative insulin release were analysed in pregnant mares (n=12) and in geldings (n=10) as controls...
July 6, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28689636/dynamic-transcription-and-expression-patterns-of-kif3a-and-kif3b-genes-during-spermiogenesis-in-the-shrimp-palaemon-carincauda
#5
Yong-Qiang Zhao, Hai-Yan Yang, Dan-Dan Zhang, Ying-Li Han, Cong-Cong Hou, Jun-Quan Zhu
Spermiogenesis is a highly ordered and complex process in the male germ cell differentiation. The microtubule-based motor proteins KIF3A and KIF3B are required for the progression of the stages of spermiogenesis. In this study, the main goal was to determine whether KIF3A and KIF3B have a key role in spermiogenesis in Palaemon carincauda. The complete cDNA of KIF3A/3B from the testis of P. carincauda was cloned by using PCR and rapid amplification of cDNA ends (RACE). The predicted secondary and tertiary structures of KIF3A/3B contained three domains which were the: a) head region, b) stalk region, and c) tail region...
July 1, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28705424/post-implantation-development-reveals-that-biopsy-procedure-can-segregate-healthy-from-unhealthy-bovine-embryos-and-prevent-miscarriages
#6
Clara Slade Oliveira, Carolina Capobiango Romano Quintão, Celio de Freitas, Agostinho Jorge Dos Reis Camargo, Raquel Varella Serapião, Luiz Sérgio de Almeida Camargo
Embryo biopsy has been performed in bovine in vivo produced embryos for the last twenty years, but little could be done with few embryonic cells in the past. Recently, advances in single cell analysis enabled a wide range of applications using embryo biopsy, from morphology to genetics analysis and different omics-techniques, which are promising for in vitro-fertilized (IVF) embryos. The aim of this study was to address if biopsy procedure would affect post implantation development of IVF blastocyts. Here we show that blastocyst stage do not affect re-expansion of biopsied embryos (regular blastocyst: 73...
June 29, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28693937/spermatogenic-dynamics-of-the-spiny-rat-kannabateomys-amblyonyx-wagner-1845-rodentia-echimyidae
#7
Verônica A Siman, Raquel S M Godoy, Fernanda C R Dias, Fabiano A Silva, Gisele M L Del Giudice, Marcos L M Gomes, Sérgio L P Matta
Rodents are distributed worldwide, playing important ecological roles regarding preservation of forest areas. Thus, the study of their reproductive biology is a key for conservation initiatives that prevent extinction and/or improve species management. The present study aimed to describe the spermatogenic dynamics of the spiny rat Kannabateomys amblyonyx, an endemic species from Atlantic Rainforest areas, in Brazil. The average body weight was 418.43g with a gonadosomatic index of 0.41%. The testicular parenchyma organization followed the pattern described for other rodent species, with a large amount of seminiferous tubules occupying 93...
June 28, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28728862/seminal-plasma-proteins-modify-the-distribution-of-sperm-subpopulations-in-cryopreserved-semen-of-rams-with-lesser-fertility
#8
Alba Ledesma, Lucía Zalazar, Estela Fernández-Alegre, Federico Hozbor, Andreina Cesari, Felipe Martínez-Pastor
Any physiological mechanism involved in sperm selection and semen improvement has effects on heterogeneous sperm populations. This is mainly due to the fact that sperm populations within a single ejaculate have considerable heterogeneity for many variables, such as motility which is meaningful in terms of understanding how some sperm cells possess fertility advantages as compared with other cells. In the present research, initially there was a multivariate and clustering analysis used to assess sperm motility data from cryopreserved ram semen to identify subpopulations and compare the distribution of these clusters between rams with lesser and greater fertility...
June 27, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28683954/impact-of-porcine-epidemic-diarrhea-on-herd-and-individual-berkshire-sow-productivity
#9
Aina Furutani, Tadahiro Kawabata, Masuo Sueyoshi, Yosuke Sasaki
Porcine epidemic diarrhea (PED) is an emerging disease of pigs in several countries. In the present study, individual sow productivity of Berkshire sows exposed to PED virus at different stages of production was compared. On a commercial farrow-to-finish farm in Kagoshima Prefecture, Japan, the clinical presence of PED was observed in the farrowing barn on January 6, 2014, and all gilts and sows were immunized on January 9, except those in the farrowing barn. The sows were categorized into six groups based on the period in which they were exposed to PED virus: between days 0-30 (G1), 31-60 (G2), 61-90 (G3), or after 91 days of pregnancy (G4), during lactation (L), and after weaning (W)...
June 26, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28711219/effect-of-feeding-three-lysine-to-energy-diets-on-growth-body-composition-and-age-at-puberty-in-replacement-gilts
#10
J A Calderón Díaz, J L Vallet, R D Boyd, C A Lents, T J Prince, A E DeDecker, C E Phillips, G Foxcroft, K J Stalder
This study evaluated the effect of diets differing in standard ileal digestible (SID) lysine on lysine intake, growth rate, body composition and age at puberty on maternal line gilts. Crossbred Large White×Landrace gilts (n=641) were fed corn-soybean diets differing in SID lysine concentration (%, g SID lysine:Mcal ME); diets were not isocaloric. Gilts received three grower, finisher diet combinations: low (0.68% lysine grower, 0.52% lysine finisher), medium (0.79% lysine grower, 0.60% lysine finisher) or high (0...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28709736/supplementation-of-tris-based-extender-with-plasma-egg-yolk-of-six-avian-species-and-camel-skim-milk-for-chilled-preservation-of-dromedary-camel-semen
#11
Farnaz Panahi, Amir Niasari-Naslaji, Fahimehsadat Seyedasgari, Tahereh Ararooti, Kamal Razavi, Ali Akbar Moosavi-Movaheddi
The present study was conducted to investigate a suitable source (Expt. 1) and concentration (Expt. 2) of plasma egg yolk (PEY) and concentration of camel skim milk (CSM; Expt. 3) to supplement tris based extender for chilled storage of dromedary camel semen. In Expt. 1, PEY (20%) of six avian species (domestic chicken, domestic duck, Japanese quail, partridge, pigeon and guinea fowl) was added to semen extender. In Expt. 2, different concentrations (0, 10, 20, 30 and 40%) of selected PEY from Expt.1 were added to semen extender...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28697943/ultrasonographic-characteristics-of-accessory-sex-glands-and-spectral-doppler-indices-of-the-internal-iliac-arteries-in-peri-and-post-pubertal-dorper-rams-raised-in-a-subtropical-climate
#12
E S C Camela, R P Nociti, V J C Santos, B I Macente, G S Maciel, M A R Feliciano, W R R Vicente, I Gill, P M Bartlewski, M E F Oliveira
The aim of the present study was to determine and compare ultrasonographic characteristics of accessory sex glands and spectral Doppler indices of the internal iliac arteries in peri- and post-pubertal rams raised in a subtropical climate. Forty-five Dorper rams were examined (24 rams aged 8-11 months and 21 rams aged 12-24 months). Digital images of all accessory sex glands were subjected to morphometric and echotextural analyses, the latter using commercially available image analytical software Image ProPlus(®)...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28688795/gper1-in-sand-rat-epididymis-effects-of-seasonal-variations-castration-and-efferent-ducts-ligation
#13
Rafik Menad, Meriem Fernini, Souaâd Smaï, Xavier Bonnet, Thérèse Gernigon-Spychalowicz, Elara Moudilou, Farida Khammar, Jean-Marie Exbrayat
Estrogen plays a crucial role in regulating epididymal function and development. Estrogen signaling is mediated via two main receptors essentially involved in the genomic regulating pathway: ERα and ERβ. Recent studies revealed the contribution of a novel estrogen receptor involved in the non-genomic pathway: GPER1. This receptor belongs to the family of seven-transmembrane G-protein-coupled receptors and it triggers rapid cellular responses. Immuno-histochemical studies and Western Blot analyses were performed to investigate the GPER1 expression in the caput and cauda epididymis of free-ranging fat sand rats (Psammomys obesus) captured during the breeding and resting seasons...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28683955/age-related-changes-in-laying-pattern-and-egg-weight-of-different-laying-hen-genotypes
#14
E Tůmová, L Uhlířová, R Tůma, D Chodová, L Máchal
The aim of the study was to evaluate changes in laying patterns depending on the age of different genotypes of laying hens. In the experiment, six genotypes were evaluated (brown-egg hens Bovans Brown, Bovans Sperwer and Isa Sussex, white-egg hens Dekalb White, and laying hens with tinted shells Moravia Barred and Moravia BSL) in three periods during the laying cycle (the onset of lay between 20 and 26 weeks of age, the middle from 36 to 42 weeks of age and the end of lay between 64 and 70 weeks of age). A significant interaction between genotype and age was apparent in mean sequence length (P<0...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28662882/ovum-pick-up-interval-in-buffalo-bubalus-bubalis-managed-under-wetland-conditions-in-argentina-effect-on-follicular-population-oocyte-recovery-and-in-vitro-embryo-development
#15
J Konrad, G Clérico, M J Garrido, G Taminelli, M Yuponi, R Yuponi, G Crudeli, M Sansinena
The excellent adaptation of water buffalo (Bubalis bubalis) to swampy environments means that animals are frequently managed in areas with restricted access for reproductive procedures. The objective of this study was to evaluate the effect of the ovum pick-up (OPU) interval on follicular population, oocyte recovery, oocyte quality and in vitro embryo production. Twelve Murrah buffaloes were subjected to two consecutive dominant follicle reductions, and randomly assigned to either 7-day (n=6) or 14-day (n=6) OPU interval groups...
June 20, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28662881/sperm-membrane-proteins-associated-with-the-boar-semen-cryopreservation
#16
Daianny B Guimarães, Tatyane B Barros, Maurício F van Tilburg, Jorge A M Martins, Arlindo A Moura, Frederico B Moreno, Ana C Monteiro-Moreira, Renato A Moreira, Ricardo Toniolli
This study aimed to define sperm membrane protein markers of semen freezability of boars with the aid of a proteomic approach. Semen from fourteen adult boars were subjected to slow freezing and rapid thawing. After thawing, sperm vigor and motility were analyzed, and based on these results, animals were separated into two groups: good (GFEs) and poor freezability (PFEs). Sperm membrane proteins were extracted and subjected to two-dimensional electrophoresis. Stained gels were analyzed by computerized resources to indicate differentially expressed protein spots, that were identified by mass spectrometry...
June 20, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28629655/protocols-for-sperm-cryopreservation-in-the-domestic-cat-a-review
#17
REVIEW
K Buranaamnuay
The main objectives of sperm cryopreservation in domestic cats are to preserve these gametes for future use, especially in valuable domestic cat breeds and to use knowledge-gained for developing sperm preservation techniques in wild felids that are threatened with extinction. To achieve acceptable quality of post-thaw sperm and results after insemination, sperm samples must be properly handled, cryopreserved and thawed by using appropriate protocols. In this paper, cryopreservation protocols of domestic cat sperm that have been reported previously are described...
June 13, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28623008/yucca-schidigera-can-promote-rabbit-growth-fecundity-affect-the-release-of-hormones-in-vivo-and-in-vitro-induce-pathological-changes-in-liver-and-reduce-ovarian-resistance-to-benzene
#18
Martina Földešiová, Andrej Baláži, Ľubica Chrastinová, Juraj Pivko, Jan Kotwica, Abdel Halim Harrath, Peter Chrenek, Alexander V Sirotkin
This study evaluated the effect of Yucca schidigera (YS) extract on the physiological, reproductive, and endocrine indexes of New Zealand White rabbit does. Six-week-old rabbit does were fed a standard diet (control group) or a diet enriched with 5 or 20g of Y powder extract per 100-kg feed mixture for 350days. The does were artificially inseminated after induction of superovulation. Weight gain; conception and kindling rate; viability of pups and mothers; histopathological state of liver and muscle; plasma levels of progesterone (P4), oxytocin (OT), and prostaglandin F (PGF); and the release of P4, insulin-like growth factor I (IGF-I), OT, and PGF by isolated ovarian fragments and their response to the addition of benzene were analyzed...
June 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28619267/multiple-paternity-in-the-cultured-yellow-pond-turtles-mauremys-mutica
#19
Xin-Cheng Zhang, Jian Zhao, Wei Li, Cheng-Qing Wei, Xin-Ping Zhu
As a result of hunting and habitat loss, wild populations of the yellow pond turtle, Mauremys mutica, are decreasing. The International Union for Conservation of Nature considers M. mutica to be an endangered species. All studied freshwater turtles have polyandrous mating with multiple paternity. To survey the mating strategies of M. mutica, 1year's genetic data of parents and all offspring in an artificially captive population were analyzed. Two groups of multiplex PCR containing 16 microsatellite loci were used to analyze the paternity of 302 hatchlings from 132 parents and from 159 clutches...
June 9, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28652026/the-expression-of-progesterone-receptor-coregulators-mrna-and-protein-in-corpus-luteum-and-endometrium-of-cows-during-the-estrous-cycle
#20
R Rekawiecki, M K Kowalik, J Kotwica
The aim of this study was to examine whether changes in the mRNA and protein expression of the progesterone receptor (PGR) coactivator P300/CBP-associated factor (PCAF) and the corepressor Nuclear Receptor Corepressor 1 (NCOR1) may participate in the regulation of PGR function during the estrous cycle in corpus luteum (CL) and endometrium and thus modulate the effect of progesterone (P4) within the reproductive system. The experimental material included CL and endometrial tissues from cows on days 2-5, 6-10, 11-16, and 17-20 of the estrous cycle...
June 3, 2017: Animal Reproduction Science
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