Research Explorer

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Researcher

Peter Bols

Awards & Distinctions

54 Results

2008

Effect of epididymis storage temperature and cryopreservation on mitochondrial potential, membrane integrity and motility of bovine epididymal sperm

M NICCHITom RijsselaereI GOOVAERTSAnn Van SoomV BARNABEJ DE CLERCQPeter Bols

Quantification and viability assessment of isolated bovine primordial and primary ovarian follicles retrieved through a standardized biopsy pick-up procedure

J AERTSB MARTINEZ-MADRIDK FLOTHMANNJ DE CLERCQStefan Van AelstPeter Bols

A1 Journal Article in REPRODUCTION IN DOMESTIC ANIMALS

Reduced fertility in high-yielding dairy cows: Are the oocyte and embryo in danger? Part I - The importance of negative energy balance and altered corpus luteum function to the reduction of oocyte and embryo quality in high-yielding dairy cows

JLMR LEROYGeert OpsomerAnn Van SoomIGF GOOVAERTSPeter Bols

A1 Journal Article in REPRODUCTION IN DOMESTIC ANIMALS

Reduced fertility in high-yielding dairy cows: Are the oocyte and embryo in danger? Part II - Mechanisms linking nutrition and reduced oocyte and embryo quality in high-yielding dairy cows

JLMR LEROYAnn Van SoomGeert OpsomerIGF GOOVAERTSPeter Bols

A1 Journal Article in REPRODUCTION IN DOMESTIC ANIMALS

2007

Effect of bull epididymis storage conditions on cryopreserved epididymal sperm in vitro fertility and lipid peroxidation status

M NICHITom RijsselaereAnn Van SoomJ DE CLERCQI GOOVAERTSV BARNABEPeter Bols

Metabolic changes in high yielding dairy cows and the consequences on oocyte and embryo quality

Jo LeroyGeert OpsomerAart de KruifAnn Van SoomPeter Bols

2006

Persistent contamination of a routine bovine IVF system with a gram-positive, gentamicin-resistant coccobacilum

I GOOVAERTSLiesbeth CeelenJ DE CLERCQPeter Bols

Reduced fertility in high producing dairy cows…is the oocyte in danger?

Jo LeroyGeert OpsomerPeter BolsAart de KruifAnn Van Soom

The in vitro development of bovine oocytes after maturation in negative energy balance associated glucose and β-hydroxybutyrate concentrations in dairy cows

Jo LeroyTom VanholderGeert OpsomerPeter BolsAart de KruifAnn Van Soom

Typical metabolic changes in high producing dairy cows early post partum and their consequences on oocyte and embryo quality

Jo LeroyTom VanholderGeert OpsomerAnn Van SoomPeter BolsAart de Kruif

A3 Journal Article in Flemish Veterinary Journal

2005

Aspectos técnicos e biológicos na recuperação de oócitos via trans-vaginal guiada por ultra-som em vacas

Peter BolsJo LeroyJ VIANA

A3 Journal Article in Acta Scientiae Veterinariae

Aspiração de oócitos (ovum pick-up), a técnica ideal para o estudo do ambiente intra-follicular e da qualidade oocitária em vacas de leite de alta produção

Jo LeroyPeter BolsGeert OpsomerAnn Van SoomAart de Kruif

A3 Journal Article in Acta Scientiae Veterinariae

Comparison of embryo quality in high-yielding dairy cows, in dairy heifers and in beef cows

Jo LeroyGeert OpsomerSarne De VliegherTom VanholderL GOOSSENSA GELDHOFPeter BolsAart de KruifAnn Van Soom

A1 Journal Article in THERIOGENOLOGY

Effect of caffeine on motility and IVF results of stored epididymal bull semen

I GOOVAERTSAnn Van SoomJeroen DewulfAart de KruifPeter Bols

Effect of oleic acid during in vitro maturation and fertilisation, first cleavage and embryo development of bovine cumulus-oocyte-complexes

Jo LeroyTom VanholderAnn Van SoomGeert OpsomerPeter BolsAart de Kruif

Interrelation between follicular fluid and serum non esterified fatty acids in high-yielding dairy cows early post partum

Jo LeroyTom VanholderAnn Van SoomGeert OpsomerPeter BolsArmand Christophe

Low glucose and high β-hydroxybutyrate levels during in vitro maturation of bovine oocytes do not influence blastocyst yield

Jo LeroyTom VanholderGeert OpsomerPeter BolsAnn Van Soom

2004

A comparison of a mechanical sector and a linear array transducer for ultrasound-guided transvaginal oocyte retrieval (OPU) in the cow

Peter BolsJo LeroyTom VanholderAnn Van Soom

A1 Journal Article in THERIOGENOLOGY

Metabolic changes in follicular fluid of the dominant follicle in high-yielding dairy cows early post partum

Jo LeroyTom VanholderJoris DelangheGeert OpsomerAnn Van SoomPeter BolsJeroen DewulfAart de Kruif

A1 Journal Article in THERIOGENOLOGY

Metabolite and ionic composition of follicular fluid from different-sized follicles and their relationship to serum concentrations in dairy cows

Jo LeroyTom VanholderJoris DelangheGeert OpsomerAnn Van SoomPeter BolsAart de Kruif

A1 Journal Article in ANIMAL REPRODUCTION SCIENCE

1999

Cell allocation and chromosomal complement of parthenogenetic and IVF bovine embryos.

A VAN DE VELDEL LIUPeter BolsMaria YsebaertXZ YANG

A1 Journal Article in MOLECULAR REPRODUCTION AND DEVELOPMENT

1998

Bovine oocyte retrieval: Which follicles to puncture?

Peter BolsAart de Kruif

A1 Journal Article in VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT

Effect of oil on bovine embryonic development in vitro and on embryo survival after one-step vitrification in cattle

AR MAHMOUDZADEHAnn Van SoomPeter BolsMaria YsebaertAart de Kruif

A2 Journal Article in Journal of Science of IRI, vol. 9, 3

Effects of long-term treatment with bovine somatotropin on follicular dynamics and subsequent oocyte and blastocyst yield in an OPU-IVF program.

Peter BolsMaria YsebaertAnn LeinMarc CorynAnn Van SoomAart de Kruif

A1 Journal Article in THERIOGENOLOGY

In vitro Gewinnung boviner Embryonen : Untersuchungen zur transvaginalen und Ultraschall-geleiten Oozytengewinnung zur Embryoqualität und Virus-Embryo-Wechselwirkungen

Ann Van SoomGeert VanroosePeter BolsAart de Kruif

A1 Journal Article in TIERARZTLICHE UMSCHAU

1997

Effects of a long term treatment with bovine somatotropin on oocyte and blastocyst yield after OPU/IVF

Peter BolsAnn LeinMaria YsebaertAnn Van SoomAart de Kruif

Effects of needle tip bevel and aspiration procedure on the morphology and developmental capacity of bovine compact cumulus oocyte complexes

Peter BolsMaria YsebaertAnn Van SoomAart de Kruif

A1 Journal Article in THERIOGENOLOGY

Steriliteit bij hoogwaardige runderen: Kans op nakomelingen blijft gewaarborgd dankzij in vitro fertilisatie.

Ann Van SoomPeter BolsGeert VanrooseAart de Kruif

A3 Journal Article in VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT

Sterility in cattle of high genetic value: chance of obtaining offspring is assured thanks to in vitro fertilization.

Ann Van SoomPeter BolsGeert VanrooseAart de Kruif

A1 Journal Article in VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT

Timing of compaction and inner cell allocation in bovine embryos produced in vivo after superovulation

Ann Van SoomMarleen L BoerjanPeter BolsGeert VanrooseAnn LeinMarc CorynAart de Kruif

A1 Journal Article in BIOLOGY OF REPRODUCTION

1996

Effect of needle tip bevel on recovery, morphology and developmental capacity of bovine oocytes

Peter BolsMaria YsebaertA VAN SOOMA DE MEDTSA VAN DE VELDEAart de Kruif

Effects of aspiration vacuum and needle diameter on cumulus oocyte complex morphology and developmental capacity of bovine oocytes

Peter BolsAnn Van SoomMaria YsebaertJMM VandenheedeAart de Kruif

A1 Journal Article in THERIOGENOLOGY

Effects of the aspiration procedure used in oocyte pick-up (OPU) on the morphology and developmental capacity of bovine compact cumulus oocyte complexes

Peter BolsMaria YsebaertA VAN SOOMAart de Kruif

A2 Journal Article in Journal of Reproduction and Fertility, vol. 18

Gebruik van de transvaginale Ovum Pick-Up techniek: geboorte van de eerste OPU-kalveren in België.

Peter BolsAnn Van SoomAart de Kruif

A3 Journal Article in VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT

Sucrose-induced shrinkage of in vitro produced bovine morulae: effect on viability, morphology and ease of evaluation

Ann Van SoomMaria YsebaertA Vanhoucke-De MedtsAline Van de VeldeS MertonA DelvalA Van LangendoncktI DonnayGeert VanroosePeter Bols et al.

A1 Journal Article in THERIOGENOLOGY

The use of transvaginal oocyte pick-up (OPU): First OPU calves born in Belgium.

Peter BolsA VANSOOMAart de Kruif

A1 Journal Article in VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT

1995

A CLINICAL COMPARISON OF 2 INJECTABLE OXYTETRACYCLINE PREPARATIONS FOR THE TREATMENT OF PNEUMONIA IN CALVES.

Peter BolsAart de Kruif

A1 Journal Article in VETERINARY QUARTERLY

Improved results in IVF-treatment of sterility patients by careful selection of bulls and by simulation of cows with FSH before slaughter

Ann Van SoomPeter BolsAart de Kruif

Oocyte pick-up in the cow : the effect of changes in aspiration vacuum and disposable needle diameter on the morphology of the cumulus occyte complex and the developmental capacity of the oocyte

Peter BolsJ. M. M. VandenheedeAnn Van SoomAart de Kruif

Optimization of a simple vitrification procedure for bovine embryos produced in vitro: effect of developmental stage, two-step addition of cryoprotectant and sucrose dilution on embryonic survival

AR MahmoudzadehAnn Van SoomPeter BolsMaria YsebaertAart de Kruif

A1 Journal Article in JOURNAL OF REPRODUCTION AND FERTILITY

Ovum pick-up in the cow: the effect of aspiration vacuum and needle diameter on the morphology of the cumulus oocyte complex and on the developmental capacity of the oocyte.

Peter BolsAnn Van SoomAart de Kruif

Transvaginal ovum pick-up (OPU) in the cow : a new disposable needle guidance system

Peter BolsJ. M. M. VandenheedeAnn Van SoomAart de Kruif

A1 Journal Article in THERIOGENOLOGY

1994

A clinical comparison of two injectable oxytetracycline preparations for the treatment of pneumonia in calves

Peter BolsAart de Kruif

Ovum Pick-Up (OPU) in the cow.

Peter BolsA VANSOOMAart de Kruif

A1 Journal Article in VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT

1995, Proceedings of 11th Réunion A.E.T.R., Hannover, p. 132.

Peter BolsJ VANDENHEEDEAnn Van SoomAart de Kruif

Cryopreservation of bovine oocytes: toxicity of cryoprotectants in 3 slow freezing and 3 vitrification protocols. Proceedings of the 11th Reunion A.E.T.E., 8-9 September, Hannover, 1995, p. 156.

A DE LILLEPeter BolsAnn Van SoomAart de Kruif

Eerste Ovum Pick-up (OPU) kalveren geboren in België. 1995, De Belgische Veefokkerij, 10: pp. 38-39.

Evaluation of morphology of in vitro produced bovine embryos after sucrose treatment: preliminary results. 1995, Proceedings of 11th Réunion A.E.T.E., Hannover, p. 252.

Ann Van SoomGeert VanroosePeter BolsAart de Kruif

OPU in the cow, a new needle guidance system, Proceedings of the 10th Scientific Meeting of the A.E.T.E. European Embryo Transfer Association, Lyon, 1994, 9-10 september, p 672.

Peter BolsJ VANDENHEEDEAnn Van SoomAart de Kruif

The Vet. Quart., 17:pp. 6-8. 1995.

Peter BolsAart de Kruif

Verslag van de 1 lth Scientific Meeting European Embryo Transfer Association (A.E.T.E.), Hannover Duitsland, 8-9 september 1995; VDT, 1995, 64:pp. 216-217.

Verslag van de XXIst Annual Conference of the International Embryo Transfer Society (IETS) te Calgary, Alberta, Canada op 8-10 januari 1995. VDT, 1995, 64:pp. 64-65.

Verslag van de lOth Scientific Meeting European Embryo Transfer Association (A.E.T.E.), Lyon, France, 9-10 september 1994; VDT, 1995, 64: pp. 25-28.

Verslag van het XVIII World Buiatrics Congress van 29 august tot 2 september 1994 te Bologna, Vlaams Diergeneeskd Tijdschr, Gent, 1994, vol 63, pp 201-203.