Cover of: study of some factors influencing fertility and sterility in the bull ... | Herbert Lester Gilman

study of some factors influencing fertility and sterility in the bull ...

  • 61 Pages
  • 1.52 MB
  • English
J.B. Lyon Company, printers , Albany
Cattle, Live
Statementby Herbert Lester Gilman ...
LC ClassificationsSF871 .G5
The Physical Object
Pagination61 p.
ID Numbers
Open LibraryOL23343256M
LC Control Number23009444

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Published material. Publication info. Albany,J.B. Lyon Company, printers, Notes: "Reprinted from the Annual report of the. A study of some factors influencing fertility and sterility in the bull By Herbert Lester Gilman. Abstract "Reprinted from the Annual report of the New York state veterinary college, "Thesis (Ph.

D.)--Cornell university, Bibliography: p. Mode of access: InternetAuthor: Herbert Lester Gilman. Many factors play a role in a bull’s fertility and breeding ability, including semen quality, reproductive tract soundness, limb structure and libido (desire to breed cows).

Most of these can be determined with a breeding soundness examination (BSE), says Ram Kasimanickam, a DVM in Washington State University’s Department of Veterinary. Bull fertility remains critically important for sustainable cattle production. Although considerable progress has been made in our understanding of factors affecting bull fertility, and our ability to identify subfertile bulls, there are still considerable gaps in by: Predicting the fertility of bulls is an area of research that has been active for some time and which is ongoing.

Research and experience have identified a number of factors that influence bull fertility. The following is a list of factors that influence bull success in. Presented at the First World Congress on Fertility and Sterility, New York City, A Psychodynamic Approach to the Study of Infertility E.S.C.

Ford, M.D. A significant decrease in human fertility has been observed in the last 50 years. Approximately 15% of couples of reproductive age have fertility problems and about half of these cases are because of male factors.

A growing body of evidence suggests that environmental factors play an important role in the causes of male study of some factors influencing fertility and sterility in the bull. book. Our environment is contaminated by natural and. Fertility and Sterility's Editors have active research programs and, on occasion, publish work in the Journal.

Editor/authors are masked to the peer review process and editorial decision-making of their own work and are not able to access this work in the online manuscript submission system.

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Implantation: the process when the fertilized egg attaches to the uterine wall. Any condition that interferes with these events may result in infertility. Slide 6. Factors Affecting Fertility: Frequency of Intercourse Various factors may adversely affect fertility.

One of the common causes of infertility is infrequent intercourse. Five key paradigm shifts are described to illustrate the evolution of psychology and counseling in infertility. The first paradigm shift was in the s when psychosomatic concepts were introduced in obstetrics and gynecology as causal factors to explain why some couples could not conceive despite the absence of organic pathology.

In the second shift, the nurse advocacy movement of the s. This prospective study demonstrated that numerous factors are detrimental to fertility in both men and women. Considering that one couple in four requests ART without presenting fertility problems, it is essential to take both behavioral and environmental factors into detection and correction of these factors in the absence of any cause of infertility should lead to a natural.

The main objective of this study was to assess the effect of photoperiod on sexual activity of three breeds of boars: Swedish Landrace (n=34), Large White (n=38), and Duroc (n=32).

Male infertility refers to a male's inability to cause pregnancy in a fertile female. In humans it accounts for 40–50% of infertility. It affects approximately 7% of all men.

Male infertility is commonly due to deficiencies in the semen, and semen quality is used as a surrogate measure of male fecundity. Updated December 6, While the journey to pregnancy can be straightforward for some, others face roadblocks along the way.

For the nearly 15 percent of American couples who do not conceive within the first year of trying (i.e., unprotected sex about two to three times a week), their journey has an official label: Infertility.

Many factors can contribute to fertility troubles, and the. Many of the risk factors for both male and female infertility are the same. These include: Age. A woman’s age can affect her fertility. By a woman’s chance of pregnancy has decreased from 90 percent to 67 percent.

Of the 13 AI technicians participating in the study, 3 were related to a fertility rate improved by odds ratios ofandrespectively, whereas 2 technicians gave rise to fertility.

This bull fertility evaluation is based on cow field data, considering both factors related to the sire under evaluation (e.g. age and AI stud) and factors associated with the cow that receives the unit of semen (e.g.

herd‐year‐season, age, parity and milk yield) (Kuhn & Hutchison ; Kuhn et al. Fertility and Sterility® Elsevier Inc. Park Avenue New York, NY Telephone: Fax: Visit the Elsevier Support Center to find the answers you need.

Here you will find everything from Frequently Asked Questions to ways to get in touch. Fertility factors are determinants of the number of children that an individual is likely to ity factors are mostly positive or negative correlations without certain causations.

Factors generally associated with increased fertility include the intention to have children, in advanced societies: very high gender equality, religiosity, inter-generational transmission of values. The purpose of the study was to investigate the fertility level, some factors affecting fertility and problems of infertility in selected Swedish beef herds.

The investigation included 31 herds, 19 of which had Herefords, 13 Charolais, 2 Aberdeen Angus and 1 Limousins. Wolf J, Smital J () Quantification of factors affecting semen traits in artificial insemination boars from animal model analyses.

J Anim Sci – PubMed Google Scholar Wu N, Murono F () Temperature and germ cell regulation of leydig cell proliferation stimulated by sertoli cell-secreted mitogenic factor: a possible role in. Fact: Limit Exposure to Chemicals and Toxins: In some cases, environmental hazards can lead to infertility.

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Unavoidable, but Treatable Female Infertility Risk Factors Internal issues that result from chronic disease or disease management (such as chemotherapy), hormonal imbalance or other physical problems can interfere with a woman’s ability. Background. Secondary infertility is a common, preventable but neglected reproductive health problem in resource-poor countries.

This study examines the association of past sexually transmitted infections (STIs) including HIV, bacterial vaginosis (BV) and factors in the obstetric history with secondary infertility and their relative contributions to secondary infertility.

Male fertility is declining, and for years researchers have been trying to figure out why. The numbers may seem shocking, but between million couples around the world are having a difficult time conceiving, and there is a likely culprit, especially considering evidence arising from the latest study published at Science Direct.

Titled, “Potential pathways of pesticide action on. Chlamydia and gonorrhea are the most important preventable causes of infertility. Untreated, about % of women with chlamydia or gonorrhea will develop pelvic inflammatory disease (PID).

PID can lead to infertility and potentially fatal tubal (ectopic) pregnancy. Risk Factors for Infertility. Men and women are equally at risk for fertility problems.

In about one-third of cases, both partners have issues, or doctors can’t find the cause. Some of the. Petherick JC. A review of some factors affecting the expression of libido in beef cattle, and individual bull and herd fertility.

Applied Animal Behaviour Science. ;90(3–4)– View Article Google Scholar 2. Moce E, Graham JK. In vitro evaluation of sperm quality. Infertility refers to the biological inability of an individual to contribute to conception over the course of one year. Male infertility refers to a male’s incapability to cause pregnancy in a fertile female.

Approximately 15% of couples are affected by infertility and among them 40–50% cases are attributed to male infertility.

Male infertility is mainly categorized into Azoospermia (AS. For many of the diet factors studied (for example: caffeine, soy, protein, iron), there are conflicting data.

However, there are some items men and women consume that are detrimental to fertility, such as alcohol and tobacco. The data on exercise are varied but may have an effect on ovulation and fertility - positive or negative.

or a decreased fertility level in the cow. 1 Nutritional imbalances are just one cause of infertility in dairy cattle, however, often more than one nutrient may be involved or other non­ nutritional factors are partially to blame.

These facts make it difficult to evaluate the effect ofa single nutrient on infertility. Purpose: This study aimed to identify factors affecting transgender adolescents' and young adults' (AYA) decisions to pursue fertility preservation (FP). Methods: Participants completed a semistructured interview between December and June to inform improvements in fertility counseling and the development of a fertility decision aid targeted to transgender youth.Infertility can be the side effect of some necessary medications including antifungal pills and ulcer drugs.

Ask your doctor if any of your prescriptions can affect your reproductive organs/hormones. Stress. Stress can play a role in male fertility by affecting countless parts of the reproductive system and overall health.