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Friday, August 7, 2020 | History

2 edition of pH of bull semen and the vagina of cows as related to fertility found in the catalog.

pH of bull semen and the vagina of cows as related to fertility

Paul Carson Berger

pH of bull semen and the vagina of cows as related to fertility

by Paul Carson Berger

  • 319 Want to read
  • 36 Currently reading

Published .
Written in English

    Subjects:
  • Fertility.,
  • Infertility in animals.,
  • Semen.,
  • Cattle.

  • Edition Notes

    Statementby Paul Carson Berger.
    The Physical Object
    Pagination64 leaves, bound :
    Number of Pages64
    ID Numbers
    Open LibraryOL14304399M

    High Incidence of Cows Requiring Three or More Services Possible Causes. Improper timing of insemination--breeding too early or too late. Frequently inseminating cattle based on secondary signs of estrus. High incidence of uterine infection. Improper insemination technique or use of semen damaged during storage or handling. Embryonic or fetal. Semen was obtained from four bull at thes Anima l Research Station, Cambridge, and twelve animals a t the Cambridge Cattle Breeding Centre I.t was collected in an artificial vagina and held in a water-bath at C. before any subsequent treatment. To preserve the vitalit oy f samples selected for study of the characteristic osf theCited by:

    Scrotal circumference is also positively related to the fertility of his daughters. Cow to Bull Ratio Bull Age Number of Cows Yearling 2 Year Old On all new bulls Prior to semen collection for artificial inseminati on useFile Size: KB.   Selecting the "right" bull can potentially contribute more to the genetic improvement and profitability of a cow-calf operation than any other management practice. Breed If you are uncertain about the breed of bull to purchase, consider these factors: market acceptance of the product you are selling, availability of potential herd sires, and.

    The bull that does not have a nice crest started at 12 months in most cases will have a small scrotal and will be a low fertility bull. He most often will not become the kind of herd bull needed for great progeny. If a bull develops a fertility problem (reduction in testosterone & semen production) the crest will began a gradual decrease in size.   Deposit semen in the uterus of the cow or heifer as soon as possible. Ideally this is within 5 to 10 minutes after thawing for sexed semen, and within 10 to 15 minutes for conventional semen. The range in fertility achieved by technicians following the use of sexed and conventional semen is quite pronounced and could be due to many factors.


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PH of bull semen and the vagina of cows as related to fertility by Paul Carson Berger Download PDF EPUB FB2

The pH of bull semen and the vagina of cows as related to fertilityAuthor: Paul Carson Berger. The pH of semen samples from the same bull was subject to considerable variation.

The variations in pH of the semen of bull 49 were not as great as those in semen of bull The bulls whose semen varied most in pH (such as bull 50) also produced semen which was quite variable in con- Cited by: The experiment was conducted on 97 breeding bulls at the central cattle breeding and dairy farm, Savar, Dhaka to find out the physical and chemical properties of different bull semen.

Out of 97 bulls, 9 were Local (L), 9 were Friesian (F), 13 were Sahiwal (SL), 12 were Local×Friesian (L×F), 10 wereFile Size: KB. Relationship between number of viable sperm inseminated and fertility. The minimum number of viable sperm required for maximum fertility differs among bulls, as does the rate at which the maximum fertility is achieved with increasing sperm dosage (Adapted from Salisbury and VanDemark,Sullivan and Elliot,and den Daas et al.

).File Size: KB. The semen is collected in an artificial vagina composed of (3, 9): 1 – a glass container for semen with a water jacket and a volume scale, 2 – a thin, flexible latex sleeve.

vivo fertility of the bull [75]. Accurate morphological screening of the ejaculates allows elimination of bulls with a potential low fertility, prior to the entrance of bulls a progeny testing program and the preservation of semen, thus contributing to a major savings for AI enterprises.

SEMEN QUALITY ASSESSMENT Peter J. Chenoweth College of Veterinary Medicine, Kansas State University Semen Collection Semen can be collected from bulls by a variety of means including per-rectal massage, the use of an artificial vagina and by electro-ejaculation. The latter method is the one most commonly employed with range-type Size: KB.

EISEVIER SITE OF SEMEN DEPOSITION IN CATTLE: A REVIEW F. Lopez-Gatius Department of Animal Production, University of Lleida, Spain Received for publication: Aug Accepted: November 3, ABSTRACT The breeding of cattle using conventional artificial insemination methods involves the deposition of semen in the uterine by: Cows.

Cows calve easier and so the process can be preferred in beef breeding or with low calving ease bulls. Works best on fourth-calvers or younger. Select cows with no reproductive or health : Michael Priestley. Bull sperm motility and fertility are well preserved in egg yolk and milk extenders near nautral pH, to may even be beneficial (Salisbury and Mercier ).

The optimum pH probably varies storage temperature and other component of the extender (Chang ). Relation to fertility. The characteristics measured by semen analysis are only some of the factors in semen source states that 30% of men with a normal semen analysis actually have abnormal sperm function.

Conversely, men with poor semen analysis results may go on to father children. In NICE guidelines, mild male factor infertility is defined as when 2 or more semen analyses have 1 HCPCS-L2: G A poor semen test on a bull less than 15 months of age is not a reliable indicator that the bull will have poor quality semen a few weeks later.

Seminal qualities may improve dramatically for up to four months following puberty. While a bull must produce some viable sperm in order to be fertile, semen quality is only one aspect of total.

Semen was collected using an artificial vagina from the bulls and immediately transferred to a 37°C water bath. Semen volume was recorded by reading from graduated tubes and sperm concentration was measured using a calibrated photometer (IMV, L’Aigle, France).

The total sperm output (volume × concentration) was calculated. countries less than % of cattle and 3% of herds may still be infected.

Finally, regulations in Europe now usually specify that bulls admitted to artificial insemi­ nation (AI) centres must be negative to the agglutination test (AT) and/or the complement fixation (CF) test on blood serum. The bulls have to come from brucellosis-free herds. Friends in this video we have talked about how sperm collection is done.

This video is from Bovine Sperm Station Haryana India, The purpose of this video is. A.I. Technique in Cattle The recto-vaginal technique is the most commonly used meth-od to artificially inseminate cattle.

The basic skills required to perform this technique can be obtained with about three days practice under professional instruction and supervision. Additional proficiency and confidence will be achieved with fur.

Sperm bulls who were given ra leaves and Zn has characteristics motility significantly higher (P) between the ra. that the sperm fraction of the ejaculate is the component which causes fertilisation. Serious efforts to promote artificial insemination of cattle were made in Russia in by Ivanov and his co-workers, who developed the artificial vagina (AV) to facilitate semen collection from Size: 2MB.

Collection and preservation of bull semen 1. By: Alok Sharan I.D No. V / 11 College of Veterinary and Animal Sciences Sardar Vallabhbhai Patel University of Agriculture & Technology Modipuram, Meerut 2.

Introduction Semen: • It is also known as seminal fluid, is an organic fluid that may contain spermatozoa. This classification is acceptable to many breed societies [4,10], and was applicable to this study, as 19 of the 21 bulls identified as suitable for breeding on the basis of semen evaluation were subsequently mated with cows at a breeding ratio of to in the following breeding season in multiple sire mating systems.

The average Cited by:. Bulls were selected randomly or had at least 80 percent normal sperm cells. All bulls had a scrotal circumference greater than 32 centimeters and passed a breeding soundness evaluation.

Source Wiltbank, J.N., and N.R. Parish. Pregnancy rate of cows and heifers bred to bulls selected for semen quality. Theriogenology semen. THE COW No matter how good the semen quality, semen has no therapeutic effect to “cure” fertility problems in the cow. Cows that experience any type of health problem are predis-posed to reduced conception rates.

Cows that experience one health File Size: KB.ABSTRACT Title: “Semen Collection, Evaluation, Artificial Insemination and Correlation of Semen Parameters with Pregnancies in Alpacas” Author: Petra Szymkowicz, Animal Science CE Type: Independent Capstone Thesis Approved By: Dr.

Stephen R. Purdy, Veterinary and Animal Science Department Approved By: Dr. Carlos Gradil, Veterinary and Animal Science DepartmentFile Size: KB.