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Abstract

The research work was carried out to evaluate the effects of age and breed on semen quality of beef bull sires. The experimental site was located at Singosari National Artificial Insemination Center, Malang, Indonesia. A total of 180 ejaculate semen which were collected from 9 beef bull sires (3...

Author(s)
Isnaini, N.; Wahjuningsih, S.; Ma'ruf, A.; Witayanto, D. A.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2019, 31, 5, pp Article 78
AbstractFull Text

This study evaluated semen quality traits of 36 roosters, comprising 18 roosters each of normal feather and naked neck Nigerian local chicken (NLC) breeds at different ages. The abdominal massage technique was used to collect semen samples from individual roosters at 28, 32, 36 and 40 weeks of age. ...

Author(s)
Adeoye, G. O.; Oleforuh-Okoleh, V. U.; Chukwuemeka, U. M.
Publisher
Faculty of Agriculture, University of Nigeria, Nsukka, Nigeria
Citation
Agro-Science, 2017, 16, 1, pp 11-16
Abstract

The success or failure of artificial insemination starts with the quality status of semen used, hence, this study aimed to investigate the effects of breed, season and year on bovine semen quality of the National Bull Stud of Rwanda kept at Masaka bull station, Rwanda. A total of 1475 semen samples ...

Author(s)
Hirwa, C. D.; Kugonza, D. R.; Amahoro, E.; Ingabire, C.; Niyiragira, V.; Myambi, C.; Manzi, M.; Murekezi, T.; Nyabinwa, P.; Nshimiyimana, A. M.; Kanyandekwe, C.; Gahakwa, D.
Publisher
Academic Journals, Lagos, Nigeria
Citation
International Journal of Livestock Production, 2017, 8, 6, pp 72-78
Abstract

Sixty ejaculates each from young (2.5-3 yr, n=5) and old (6-8 yr, n=5) Jersey bulls were evaluated for fresh and post thaw semen characteristics. The old bulls had higher (p<0.05) ejaculate volume, spermatozoa per ejaculate and abnormal spermatozoa. Various post thaw semen parameters viz....

Author(s)
Bhatt, P.; Tiwari, R. P.; Jaiswal, V. K.
Publisher
Indian Society for Study of Animal Reproduction (ISSAR), Chennai, India
Citation
Indian Journal of Animal Reproduction, 2016, 37, 1, pp 50-51
AbstractFull Text

Author(s)
Quirino, C. R.; Rua, M. A. S.; Matos, L. F.; Bartholazzi Junior, A. Junior; Wilder Vega, W. H. O.
Publisher
Asociación Argentina de Producción Animal, Balcarce, Argentina
Citation
Revista Argentina de Producción Animal, 2016, 36, Suplemento 1, pp 31
Abstract

The ability to produce high-quality semen in sufficient quantity is a crucial trait of artificial insemination (AI) boars in the pig industry. Therefore, the selection process of young boars at AI centers, apart from their genetic value, should specifically take into account the quality of...

Author(s)
Schulze, M.; Buder, S.; Rüdiger, K.; Beyerbach, M.; Waberski, D.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2014, 148, 3/4, pp 164-170
AbstractFull Text

The present study was undertaken to investigate the effects of freezing on sperm velocity in four different age groups (young: <1 year; mature: e≤1.0-2.5 years; old: e≤2.5-4.5 years and very old: e≤4.5 years) of Jermasia buck. Tris Citric Acid Egg Yolk Extender (TCAYE) was added to semen samples and cryopreserved using a programmable freezer prior to plunging into liquid nitrogen (-196°C). The fresh extended and frozen-thawed semen were subjected to computer automated semen analyzer (CASA) for sperm velocity evaluation. Fresh extended sperm in mature age group showed significantly highest values for average path velocity (VAP) 76.73±1.24 µm/s, straight line velocity (VSL) 55.30±1.05 µm/s, curvilinear velocity (VCL) 144.31±2.38 µm/s, amplitude of lateral head displacement (ALH) 6.59±0.10 µm and beat cross frequency (BCF) 39.59±0.36 Hz as compared to young, old and very old age groups of buck (P<0.05). Significantly (P<0.05) higher values for VAP, VSL, VCL and ALH were observed in fresh as compared to frozen-thawed sperm in all age groups of buck. Thus, age of bucks should be considered as one of the factors that contribute to better sperm velocity which might affect fertilizability of the sperm. Optimizing the freezing technique is also essential in order to obtain satisfactory results after artificial insemination.

Author(s)
Hashida, N. H.; Nor Ashikin, M. N. K.; Khaironizam, M. Z.; Abdullah, R. B.
Publisher
Agricultural Research Communication Centre, Karnal, India
Citation
Indian Journal of Animal Research, 2013, 47, 1, pp 54-57
AbstractFull Text

Semen production from reproduction boars depends upon different factors as: age, breed, using way to natural mating or collecting, but also the environmental conditions. The present research have in view to establish how three influence factors as breed, age and collecting season could change the...

Author(s)
Tăpăloagă, P. R.; Șonea, A.; Iancu, A.; Mitrănescu, E.
Publisher
University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bucharest, Romania
Citation
Scientific Papers, Series D. Animal Science, 2013, 56, pp 161-165
AbstractFull Text

The main objective of this study was to evaluate the effect of age (A) and the intensity of the boars' utilization (s) on the phenotypic variability of ejaculate volume (VOL) and sperm motility (MO). The study included 274 ejaculates of Large White boars (LW). Boars were divided into six classes...

Author(s)
Savić, R.; Petrović, M.; Radojković, D.; Radović, Č.; Parunović, N.; Pušić, M.; Radišić, R.
Publisher
Institute for Animal Husbandry, Belgrade, Serbia
Citation
Biotechnology in Animal Husbandry, 2013, 29, 4, pp 641-650
AbstractFull Text

The biological material was represented by 15 boars of Large White, Duroc and Landrace breed. Age of the boars was between 8 months and 31 months. Collecting frequency was reduced: one collecting followed by five days pause. At each collecting it was determined the volume of the ejaculation, the...

Author(s)
Nacu, G.; Pascal, C.; Ciornei, Ș.
Publisher
Universitatea de Științe Agricole și Medicina Veterinara "Ion Ionescu de la Brad" Iași, Iași, Romania
Citation
Lucrări Științifice - Universitatea de Științe Agricole și Medicină Veterinară, Seria Zootehnie, 2012, 57, pp 23-27

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