Results 201 to 210 of about 9,031 (244)
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Animal Reproduction Science, 2000
The problems, aspects and methods of liquid storage and freeze-thawing of boar semen are discussed and a review is given on examination of spermatozoa by the recent fluorescent staining methods.
L A Johnson +2 more
exaly +3 more sources
The problems, aspects and methods of liquid storage and freeze-thawing of boar semen are discussed and a review is given on examination of spermatozoa by the recent fluorescent staining methods.
L A Johnson +2 more
exaly +3 more sources
Purchaser Response for Genetically Different Boars and Boar Semen
Journal of Animal Science, 1982 Sales records on boars sold from a breeding company and semen sold from a boar artificial insemination stud were evaluated to assess the emphasis placed on performance data and costs by buyers of semen and boars, and to determine what affects boar semen price.
Rothschild, Max +2 more
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Changes in sperm quality and lipid composition during cryopreservation of boar semen
Theriogenology, 2005 Egg yolks are commonly used in diluents in order to improve the freezability of semen. Two aspects of the role of lipids in boar semen freezability are reported in this article.
F Pizzi, Silvia Cerolini
exaly +2 more sources
Preservation of boar semen: An update
Reproduction in Domestic Animals, 2019ContentsIn the pork industry, artificial insemination and the storage of boar semen in liquid at 17°C are routinely applied to optimize the ejaculate and bring about rapid genetic changes that are reflected in the animal protein. Although the results are satisfactory, they are below what occurs with natural mating.
Felipe Pezo +3 more
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Evaluation of glucose as a cryoprotectant for boar semen
Veterinary Record, 2002Fertility parameters of boar spermatozoa were evaluated in vitro, after freeze‐thawing the semen in three different extenders containing permeable and non‐permeable cryoprotectants: A (111‐OmM Tris, 31.4mM citric acid, 185.0mM glucose, 20 per cent egg yolk, 3 per cent glycerol and 100 iu/ml penicillin G); B (200mM Tris; 70.8mM ...
Reyes Solovera, Mónica de los +4 more
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Effects influencing boar semen
Animal Reproduction Science, 2009The aim of this study was to analyze the main influences on the quality and quantity of boar semen. A total of 230,705 records of semen collections were utilised to estimate statistics of semen traits of 2712 boars belonging to the following breeds: Czech Meat Pig, Duroc, Hampshire, Landrace, Large White, Czech Large White and Pietrain, and various ...
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On the composition of boar semen
The Journal of Agricultural Science, 19541. Twenty ejaculates were collected from the same boar at weekly intervals; the composition of semen was studied by microscopic and chemical methods. The total volume of ejaculates varied from 240 to 500 ml., and sperm concentration from 50,000 to 177,000 cells/μl. Chemical analysis revealed 2·4–12·6 mg./100ml.
T. Glover, T. Mann
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Cryobiology, 1978
r-listorZ Graham et al., I971; Purse1 and Johnson, 1971). Among these methods, the composition of diluents and the processing of semen varied widely. However, low levels of glycerol in the finally diluted semen, a short equilibration time, and the freezing of semen in pellets On dry ice were common.
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r-listorZ Graham et al., I971; Purse1 and Johnson, 1971). Among these methods, the composition of diluents and the processing of semen varied widely. However, low levels of glycerol in the finally diluted semen, a short equilibration time, and the freezing of semen in pellets On dry ice were common.
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Degradation of bradykinin in semen of ram and boar
Biochemical Pharmacology, 1993The pattern of bradykinin (BK; Arg1-Pro2-Pro3-Gly4-Phe5-Ser6-Pro7-Phe8-Arg9)-inact iva ting peptidases in semen of boar and ram was investigated. The degradation of BK in semen was completely abolished by the metalloprotease inhibitors EDTA and o-phenanthroline.
A, Boettger +5 more
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Efficiency of using boar semen
Животноводство России, 2021Экспериментально доказано, что по качеству спермы хряки породы дюрок превосходят хряков крупной белой породы. Осеменение свиноматок семенем хряков породы дюрок дает более высокие производственные результаты.
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