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Animal Reproduction Science

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https://read.qxmd.com/read/31010717/effects-of-post-insemination-energy-content-of-feed-on-embryonic-survival-in-pigs-a-systematic-review
#1
Diego F Leal, Bruno B D Muro, Marcilio Nichi, Glen W Almond, Carlos H C Viana, Geovanna Vioti, Rafaella F Carnevale, Cesar A P Garbossa
The feeding of diets with greater energy content than that needed for body maintenance following mating is believed to reduce embryonic survival in pigs. In swine operations, therefore, feed intake is often restricted during the first and second week of pregnancy to reduce embryo mortality. There is thought to be a relationship between feeding diets that result in energy intake that is greater than that needed for body maintenance and embryonic death. This relationship is associated with lesser than typical progesterone (P4) concentrations when feeding diets with greater energy content due to increased hepatic clearance...
April 16, 2019: Animal Reproduction Science
https://read.qxmd.com/read/31005359/identification-of-candidate-genes-in-regulation-of-spermatogenesis-in-sheep-testis-following-dietary-vitamin-e-supplementation
#2
Yang-Hua Qu, Lu-Yang Jian, Liu Ce, Yong Ma, Chen-Chen Xu, Yue-Feng Gao, Zoltan Machaty, Hai-Ling Luo
Dietary vitamin E supplementation is beneficial to semen quality in different sheep and goat breeds. The aim of this research was to further investigate the effect of vitamin E in sheep on spermatogenesis and its regulatory mechanisms using RNA-seq. Thirty male Hu lambs were randomly divided into three groups. The animals received 0, 200 or 2000 IU/day vitamin E dietary supplementation for 105 days, and its effects were subsequently evaluated. The results indicate vitamin E supplementation increased the number of germ cells in the testes and epididymides...
April 10, 2019: Animal Reproduction Science
https://read.qxmd.com/read/31005360/effects-of-follicular-fluid-of-preovulatory-follicles-of-repeat-breeder-dairy-cows-with-subclinical-endometritis-on-oocyte-developmental-competence
#3
Mahdi Heidari, Mojtaba Kafi, Abdolah Mirzaei, Aniseh Asaadi, Adel Mokhtari
The aims of the present study were to determine the concentrations of lipopolysaccharide (LPS), hormonal progesterone, estradiol-17β, insulin growth factor (IGF-1) and magnesium in the serum and the preovulatory follicle follicular fluid (FF) in repeat breeder (RB) cows without (nSCE) or with subclinical endometritis (SCE), and further to examine the effects of this FF on developmental competence of cattle oocytes. In Experiment 1, 13 of 23 clinically healthy Holstein RB cows were identified (uterine PMNs) to have SCE...
April 9, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30981565/effects-of-recombinant-goose-adiponectin-on-steroid-hormone-secretion-in-huoyan-geese-ovarian-granulosa-cells
#4
Bo Meng, Zhongzan Cao, Yedan Gai, Mei Liu, Ming Gao, Meiyue Chen, Zhili Ning, Xinhong Luan
Adiponectin is an adipokine associated with the regulation of reproductive processes. To determine whether recombinant goose adiponectin contributes to the goose ovarian steroidogenesis, the native and then purified goose recombinant adiponectin protein was produced using recombinant DNA technologies. The effect of recombinant adiponectin on the progesterone (P4 ) and estradiol (E2 ) production in Huoyan geese ovarian granulosa cells was examined. Furthermore, the effect of recombinant adiponectin (2.5 μg/mL) on the abundance of StAR (steroidogenic acute regulatory protein), CYP11A1 (cytochrome P450scc, cholesterol side-chain cleavage enzyme) and CYP19A1 (cytochrome P450 aromatase) mRNA and protein in granulosa cells was evaluated...
April 6, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30981564/effect-of-quercetin-on-ovarian-cells-of-pigs-and-cattle
#5
Alexander V Sirotkin, Sandra Hrabovszká, Aneta Štochmaľová, Roland Grossmann, Saleh Alwasel, Abdel Halim Harrath
The bioflavonoid quercetin is a component of food with numerous biological effects, but its function in reproductive processes and mechanisms in various species remain unclear. The aim of this study was to examine the effect of quercetin on ovarian cells isolated from ovaries of two phytophagous mammalian species (i.e. pigs and cattle). There was analysis of the effect of quercetin (0, 1, 10, and 100 ng/mL) on cultured granulosa cells of pigs and cattle. Proliferation (PCNA) and apoptosis (bax) markers and release of progesterone (P4), testosterone (T), estradiol (E2), and IGF-I were quantified using quantitative immunocytochemistry, enzyme immunoassay, or radioimmunoassay...
April 6, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30952543/swimming-kinematics-and-temperature-effects-on-spermatozoa-from-wild-and-captive-shortnose-sturgeon-acipenser-brevirostrum
#6
Christine E Gilroy, Matthew K Litvak
Computer-assisted semen analysis (CASA) and cluster analysis were used to compare spermatozoa swimming kinematics and milt quality between wild and captive shortnose sturgeon (Acipenser brevirostrum). Milt samples from 27 shortnose sturgeon were collected in May 2016 and June 2017. Of these, 19 were wild caught in the Saint John River, New Brunswick, Canada, and eight were from a captive population at the Mactaquac Biodiversity facility. The following kinematic variables were measured immediately following sperm activation (˜5 s), at 30, 60, and 180 s post-activation; average path velocity (VAP); straight-line velocity (VSL); curvilinear velocity (VCL); amplitude of lateral head displacement (ALH); beat cross frequency (BCF); straightness (STR); linearity (LIN); wobble (WOB); percent motility (MOT)...
March 31, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30962039/sperm-collection-by-electroejaculation-in-small-ruminants-a-review-on-welfare-problems-and-alternative-techniques
#7
REVIEW
Silvia Abril-Sánchez, Aline Freitas-de-Melo, Julia Giriboni, Julián Santiago-Moreno, Rodolfo Ungerfeld
There are different perspectives on whether there should be use of electroejaculation (EE) for semen collection because it can be stressful and painful for the males when this technique is imposed. In the present review it is examined 1) the effects of EE on animal welfare and semen quality in domestic and wild small ruminants, 2) benefits and limitations of administering anaesthetics and sedatives prior to EE, 3) advantages/disadvantages of transrectal ultrasonic-guided massage of the accessory sex glands (TUMASG) as an alternative to EE, and 4) benefits of administering hormones, such as oxytocin or PGF2α analogues (which stimulate the contractility of the male accessory sex glands), prior to EE and TUMASG...
March 29, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30955923/ovarian-follicular-development-hormonal-and-metabolic-profile-in-prepubertal-ewe-lambs-with-moderate-dietary-restriction-and-lipid-supplementation
#8
Felipe Barbosa Junqueira, José Camisão de Souza, João Pedro Araújo Campos, Letícia Rodrigues Faria, Débora Regina da Silva, Ivan Júnior Ascari, Renato Ribeiro de Lima, Iraídes Ferreira Furusho-Garcia, Guilherme de Paula Nogueira, Nadja Gomes Alves
To evaluate the effects of moderate dietary restriction and lipid supplementation on ovarian follicular development, hormonal and metabolic profile, thirty-five prepuberal ewe lambs were blocked by body weight and randomly assigned to treatments: ALUS (control) - unsupplemented-diet ad libitum (3.5% ether extract, n = 9); R-US - intake restricted to 85% of the ALUS diet (n = 9); AL-LS - lipid-supplemented-diet ad libitum (9.8% ether extract, n = 8); R-LS - intake restricted to 85% of the ALLS diet (n = 9), from 95 ± 8 days of age until estrus or 7 months of age...
March 29, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30954314/effect-and-molecular-regulatory-mechanism-of-monochromatic-light-colors-on-the-egg-laying-performance-of-yangzhou-geese
#9
H X Zhu, M D Hu, B B Guo, X L Qu, M M Lei, R Chen, Z Chen, Z D Shi
Photoperiodic control is essential for manipulating the reproductive performance of avian species. This study was conducted to assess the neuroendocrine mechanisms that regulate reproductive functions of Yangzhou geese when there are different monochromatic light colors from light emitter diode (LED) sources. A flock of geese was divided into four groups with white, red, blue, and green light treatments being imposed. The results indicated that peak laying rates and reproductive performance were greater in geese treated with white or red as compared with blue or green light treatments...
March 29, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30952544/histological-evaluation-of-sheep-ovarian-tissue-after-laparoscopic-partial-ovariectomy
#10
Kayan Cunha Rossy, Adriana Elizabeth Cordeiro Barbosa, Barbara da Conceição Guilherme, Carla Rozilene Guimarães Silva, Carmen Silvia Pantoja Pereira, Chayanne Silva Ferreira, Daniella Kaísa de Oliveira Bezerra, Gabriela Melo Alves Dos Santos, Filipe Luigui Soares da Costa, Hanna Lyce Magno de Morais, Janayna Barroso Dos Santos, Luciana da Silva Siqueira, Luísa Pucci Bueno Borges, Maria Jeane da Silva Cavalcante, Michel Santos Cunha, Renato Abrantes de Oliveira, Rodrigo Dos Santos Albuquerque, Pedro Soares Bezerra Júnior, Marco Augusto Machado Silva, Pedro Paulo Maia Teixeira
In the present study, there was assessment of the damage to tissue caused by partial laparoscopic ovariectomy using bipolar forceps in sheep. Fragments of ovaries of six sheep were removed using bipolar forceps by making a transverse section in the middle third of the organ via three-portals that were made using laparoscopy. The fragments were subjected to standard histological examinations and the lesions attributed to the procedure were investigated using an optical microscope and Image J software. The results were assessed using an analysis of variance and the Tukey test...
March 29, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30981566/effect-of-dietary-grape-marc-on-fresh-and-refrigerated-boar-semen
#11
Alessia Gloria, Alberto Contri, Lisa Grotta, Augusto Carluccio, Domenico Robbe, Andrea Ianni, Giorgio Vignola, Giuseppe Martino
In several studies there has been evaluation of the dietary addition of antioxidants to improve the quality of fresh and stored semen in domestic animals. Grape marc (GM), as the residue of vinification, contains large amounts of polyphenols with antioxidant, anti-inflammatory, antimicrobial, and antiaging effects. In this study, two regimens of dietary GM supplementation (2% and 4%) were tested regarding effects on the characteristics and lipid peroxidation of fresh and stored semen. The dietary supplementation of GM improved sperm characteristics in fresh semen, especially at 4% of GM...
March 27, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30967318/inhibitory-effect-of-bisphenol-a-on-in-vitro-feline-uterine-contractions
#12
Ruhi Kabakci, Hasan Ceyhun Macun, Ibrahim Mert Polat, Ebru Yildirim
Bisphenol A (BPA) is an environmental pollutant used as a plasticizer in the manufacture of many plastic products, such as packaging, containers, and water and beverage bottles. There are deleterious effects of BPA on metabolic, endocrine, nervous, and reproductive systems. This is the first study in which there was investigation of the in vitro effect of BPA on the spontaneous contractions of the cat uterus. The tubal uterine segments (1 cm) collected from queens in estrus were suspended in an isolated organ bath...
March 27, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30948244/apoptosis-signal-regulating-kinase-ask1-and-transcription-factor-tumor-suppressor-protein-tp53-suppress-rabbit-ovarian-granulosa-cell-functions
#13
Alexander V Sirotkin, Juraj Petrak, Saleh Alwasel, Abdel Halim Harrath
This study was conducted with the aim to understand the roles of apoptosis signal-regulating kinase (ASK1) and transcription factor tumor suppressor protein TP53, as well as the possible interrelationships, in the control of healthy ovarian cell functions. Rabbit ovarian granulosa cells were transfected with constructs encoding ASK1, TP53, or TP53 + ASK1 and cultured with or without insulin-like growth factor 1 (IGF1). The accumulation of ASK1, the cytoplasmic apoptosis regulators BAX and BCL2, and proliferating cell nuclear antigen (PCNA, a cell proliferation marker), as well as progesterone release, were evaluated by quantitative immunocytochemistry and radioimmunoassay...
March 27, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30928159/seminal-plasma-transferrin-effects-on-cryopreserved-common-carp-cyprinus-carpio-sperm-and-comparison-with-bovine-serum-albumin-and-antifreeze-proteins
#14
Anna Shaliutina-Kolešová, Mariola Dietrich, Mo Xian, Rui Nian
In the current study, there was evaluation of the cryopreservation effectiveness of common carp Cyprinus carpio sperm when cryopreservation medium was supplemented with proteins. Semen was diluted with Kurokura's extender composing 180 mM NaCl, 2.68 mM KCl, 1.36 mM CaCl2 , 2.38 mM NaHCO3 , and 10% dimethylsulfoxide (DMSO). Cryopreservation medium was supplemented with purified seminal plasma transferrin (Tf), bovine serum albumin (BSA) or antifreeze protein (AFP) Types I and III. Concentration of proteins evaluated was 0...
March 23, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30922529/evaluation-of-serum-c-reactive-protein-concentration-as-a-marker-of-impending-parturition-and-correlation-with-progesterone-profile-in-peri-partum-bitches
#15
Ada Rota, Chiara Milani, Barbara Contiero, Elisa Artusi, Bodil Ström Holst, Stefano Romagnoli
C-reactive protein (CRP) is one of the major acute phase proteins in dogs. It is produced by the liver and rapidly increases in response to an inflammatory stimulus. The aim of this study was to measure CRP concentrations around parturition and to verify whether this protein could be useful, together with progesterone (P), to detect the onset of parturition in bitches. The CRP and P concentrations were measured in 66 serum samples from 28 healthy pregnant bitches, collected between -5 and +2 days from parturition (day of parturition = day 0)...
March 19, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30905503/sperm-characterization-of-the-endangered-amazonian-fish-hypancistrus-zebra-basic-knowledge-for-reproduction-and-conservation-strategies
#16
Jôsie S Caldas, Leandro Godoy
Hypancistrus zebra is an ornamental fish endemic to the Xingu River (Brazilian Amazon) and is critically endangered by the construction of a hydroelectric plant in its habitat and illegal fishing. In an attempt to create a germplasm bank for conservation purposes, in the present study there was characterization of H. zebra sperm for the first time and assessment of sperm quality throughout the year after successive stripping. Semen was collected four times during a year, and there was similar (P >  0...
March 19, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30904176/use-of-ultrasonography-to-determine-sex-in-sexually-immature-european-river-lamprey-lampetra-fluviatilis-l
#17
Roman Kujawa, Joanna Nowosad, Mateusz Biegaj, Beata Irena Cejko, Dariusz Kucharczyk
In this study, there was the first attempt to sex immature European river lampreys Lampetra fluviatilis, classified as Agnatha using ultrasonography. This species starts a spawning migration from seas to rivers in the autumn and reproduction is initiated in the late spring. It is recommended to collect breeders soon after the beginning of the spawning migration, however, to date no method has been developed for distinguishing the sex of individuals during this developmental period. The lampreys for the present study were caught in autumn (November) in the Vistula River (northern Poland) during the period of spawning migration and transported to the laboratory...
March 19, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30890291/comparisons-in-geese-of-the-courtship-mating-behaviors-and-fertility-of-the-carlos-and-sichuan-breeds-and-the-breed-crosses
#18
Y Zhang, Y Yao, M M Wang, Y Z Yang, T T Gu, Z F Cao, L Lu, C An, J W Wang, G H Chen, Q Xu, W M Zhao
The Chinese goose originated from the swan goose (Anser cygnoides) and the European goose originated from the greylag goose (Anser anser). The Chinese and European geese have the potential to crossbreed. Whether interspecific differences in mating behaviors affect successful hybridization is unknown. In this study, 10-month-old Carlos geese (n = 120; Anser anser) and Sichuan geese (Anser cygnoides) were selected, and 12 multi-male parent families (3♂+12♀) were established. The courtship and mating behaviors of pure and cross-bred combinations of the Carlos and Sichuan geese were recorded using video cameras...
March 15, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30935774/effect-of-dietary-supplementation-of-palm-kernel-cake-on-ovarian-and-hepatic-function-in-buffalo-bubalus-bubalis
#19
Benjamim de Souza Nahúm, Naiara Zoccal Saraiva, Cristian Faturi, André Guimarães Maciel E Silva, José de Brito Lourenço, José Silva de Sousa, João Maria do Amaral, Guilherme de Paula Nogueira, Gisele Zoccal Mingoti
To determine the optimal inclusion amount of palm kernel cake (PKC) in a buffalo diet, in the present study there was evaluation of the ovarian activity, metabolism and hepatic function of females that were treated to synchronize the time of ovulation. Twenty-four estrous-cyclic and non-lactating Murrah buffalo with a mean age of 5.7 years were supplemented with 0%, 0.25%, 0.5% and 1% of their body weight (BW) with PKC. Animals were subjected to the Ovsynch protocol (beginning of protocol = D0). The ovaries were examined and the blood was collected on D10 (follicular phase) and D17 (luteal phase)...
March 14, 2019: Animal Reproduction Science
https://read.qxmd.com/read/30878391/a-preliminary-study-of-the-heterogeneity-in-endometrial-morphology-and-glycosylation-in-the-uterine-horns-of-the-non-pregnant-impala-aepyceros-melampus
#20
Carolyn J P Jones, W R Twink Allen, Sandra Wilsher
Placentation commences only in the right uterine horn in impala (Aepyceros melampus). To investigate possible differences in morphology or glycosylation between the two horns, right and left uterine horns from six non-pregnant, wild impala were examined morphometrically and histochemically using a panel of 23 lectins and an avidin-biotin revealing system. The presence of ovarian 3ß hydroxysteroid dehydrogenase (3ßHSD) and aromatase was also investigated using immunocytochemistry. There were few detectable differences in morphology and glycosylation between right and left uterine horns in five of the specimens, but the sixth had deep clefts and plentiful exocrine secretions in the right horn, and not the left...
March 9, 2019: Animal Reproduction Science
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