Citations with the tag: INFERTILITY in animals
Results 1 - 50
- Sexually dimorphic sterility phenotypes in Hoxa10-deficient mice.
Satokata, Ichiro; Benson, Gall // Nature; 3/30/1995, Vol. 374 Issue 6521, p460
Examines infertility phenotypes in Hoxa10-deficient mice. Reproductive frequencies in Hoxa10-deficient mice; Bilateral cryptorchidism in Hoxa10-deficient males; Role of the gubernaculum in testicular descent.
- Feline Infertility.
Williams, John S. // Cats Magazine; Aug2000, Vol. 56 Issue 8, p20
Discusses infertility in cats, its causes and possible treatments.
- Sterile screw worms fly in to save Africa's livestock.
Williams, John S. // New Scientist; 12/8/90, Vol. 128 Issue 1746, p17
Reports that the first planeload of sterile male screw worm flies is scheduled to arrive in Libya in December 1990. Goal of wiping out the infestation of New World screw worms that threatens African livestock; Factors that will contribute to the effectiveness of the program; History of the...
- The Fertility of Hebephiles and the Adaptationist Argument Against Including Hebephilia in DSM-5.
Blanchard, Ray // Archives of Sexual Behavior; Aug2010, Vol. 39 Issue 4, p817
A letter to the editor is presented related to fertility of hebephiles.
- The first South African International Symposium on Developmental, Cell & Molecular Biology.
Blanchard, Ray // South African Journal of Science; Nov/Dec96, Vol. 92 Issue 11/12, p570
Presents the abstract of the paper `Oleanolic acid causes sterility in male Wistar rats,' by Christopher Mdhuli and Gerhard van der Horst, presented during the first South African International Symposium in Developmental, Cell and Molecular Biology held January 1996 in Johannesburg, South Africa.
- PRRS blamed for infertility.
Buss, Jessica // Farmers Weekly; 11/1/2002, Vol. 137 Issue 18, p32
Talks about the explosion in sow infertility among pig units in Great Britain as of 2002. Speculation on the involvement of the strain of porcine reproductive respiratory syndrome to the infertility; Observations on the affected sows.
- The contraceptive plague.
O'Neill, Graeme // New Scientist; 8/10/2002, Vol. 175 Issue 2355, p4
Focuses on the genetically modified viruses in Australia. Move of geneticists to engineer the myxoma virus in rabbits; Contribution of the viruses in making female animals infertile; Consistence of an engineered herpes virus and murine cytomegalovirus in producing 100 percent sterilization of...
- Sterile release.
O'Neill, Graeme // New Scientist; 8/11/90, Vol. 127 Issue 1729, p23
Reports that the United Nations Food and Agriculture Organization has started releasing sterile male screw worm flies to wipe the New World pest out in Africa. Origin of the sterile flies.
- The dominance theory of Haldane's rule.
Turelli, Michael; Orr, H. Allen // Genetics; May95, Vol. 140 Issue 1, p389
Discusses the dominance theory of Haldane's rule, on the sterility of species hybrids. Alleles that decrease hybrid fitness; X-linked alleles causing postzygotic isolation; Disproportionate effect of the X chromosome on hybrid sterility; Explanations for the absence of cases of Haldane's rule...
- Action now can beat seasonal sow infertility.
Balsom, Aly; Trickett, Sarah // Farmers Weekly; 11/6/2009, Vol. 151 Issue 19, p33
The article calls for good management in the summer and autumn in order to help minimize seasonal sow infertility problems, according to pig technologist Mark Hawe.
- Missed opportunities.
Coile, D. Caroline // Dog World; Jul2003, Vol. 88 Issue 7, p22
Focuses on the major causes of infertility in bitches. Failure to cycle in genetically or developmentally normal bitches; Abnormal short intervals between estrus; Causes of low sperm number.
- Leptin deficiency could cause fertility problems.
Allison, Richard; Buss, Jessica // Farmers Weekly; 4/19/2002, Vol. 136 Issue 16, p46
Reports that insufficient leptin could be responsible for low progesterone levels and associated fertility problem in dairy cows, according to researcher, George Mann. Blood leptin concentrations of cows with abnormal progesterone cycles; Factors behind low progesterone.
- Ovum pick up gains backing.
Buss, Jessica // Farmers Weekly; 9/13/2002, Vol. 137 Issue 11, p40
Presents information on the views of Hexham, England-based veterinarian Will Christie on the use of ovum pick up on infertile animals. Advantage of ovum pick up over embryo collection; Details of the ovum pick up method; Background on the pregnancy rates and embryo yields after the application...
- Cytoplasmic droplets: the good, the bad or just confusing?
T.G. Cooper // Human Reproduction; Jan2005, Vol. 20 Issue 1, p9
The term cytoplasmic droplets is used to mean two different structures by basic scientists and clinicians. The literature on the presence, position and loss of cytoplasmic droplets and their relationship to infertility in animal species is reviewed. It is proposed that a change in terminology is...
- Are volunteers delivering semen samples in fertility studies a biased population?
F. Eustache; J. Auger; D. Cabrol; P. Jouannet // Human Reproduction; Dec2004, Vol. 19 Issue 12, p2831
BACKGROUND: It is not known to what extent the results of epidemiological studies on male fertility and semen quality based on voluntary participation in the general population are relevant. METHODS: In a study on the reproductive health of male partners of pregnant women, information was...
F. Eustache; J. Auger; D. Cabrol; P. Jouannet // Farmers Weekly; 1/17/2013, Vol. 160 Issue 3, p94
The article provides an answer to the question on whether cows do not become immune to a virus like German measles and will continually suffer from infertility or malformed calves based on an experience of a farmer.
- Trich can creep up quietly.
THOMAS, HEATHER SMITH // Western Farmer-Stockman; Oct2013, Vol. 134 Issue 10, p35
The article discusses the venereal disease of cattle called trichomoniasis wherein it can cause infertility and occasional abortions in cows due to the small mortiles protozoan found in the reproductive tract of the bull and cow which transmitted through the use of untested and unsafe bulls in...
- The Mating Game.
Williams, John S. // Cats Magazine; May99, Vol. 55 Issue 5, p40
Features ten general informations on mating, reproduction and other gynecological factors about cats. Process of fertilization in cats; Diseases that can cause infertility; Breeding superstitions in cats; Effects of vaccination on cats.
- Variance component estimation for reproductive merit of beef cattle using linear and non-linear models.
Rust, T.; Van der Westhuizen, J.; Schoeman, S. J.; Van Wyk, J. B. // South African Journal of Animal Science; 2004, Vol. 34 Issue 6, p59
An objective was defined for a breeding program in South Africa to improve the female fertility of the national herd. The aim of the study was to change the approach of defining a trait based on female fertility and to define the trait, reproduction merit, as an indicator of the efficiency of...
- New teat technology.
Rust, T.; Van der Westhuizen, J.; Schoeman, S. J.; Van Wyk, J. B. // Farmers Weekly; 2/1/2002, Vol. 136 Issue 5, p39
Reports that non-antibiotic, bismuth subnitrate teat seals have proven to be an effective alternative to dry cow therapy for preventing infections. Factor that makes them a promising alternative to conventional dry cow therapy for low cell count cows.
- Acropora (Anthozoa: Scleractinia) Reproductive Synchrony and Spawning Phenology in the Northern Line Islands, Central Pacific, as Inferred from Size Classes of Developing Oocytes.
Pondella II, Daniel J.; Froeschke, John T.; Wetmore, Lynne S.; Miller, Eric; Valle, Charles F.; Medeiros, Lea // Pacific Science; Oct2008, Vol. 62 Issue 4, p569
Little is known of the timing of reproduction in central Pacific coral populations near the equator. Oocyte pigmentation and size comparison with sizes of mature eggs reported in published literature were used to infer intra- and interspecific synchrony and probable spawning phenology in 15...
- Birds, Bees and Rams.
Murphy, Gerry // Irish Farmers Monthly; Oct2007, p60
The article provides information on the managing ram farm in Ireland. According to the author, it is important for a farmer to have a basic understanding of the main action of ram physiology and ewe or ram interaction to be aware on the issue of ram's fertility. According to the studies in the...
- Bacteria in semen samples from suspected infertile rams.
Murphy, Gerry // Veterinary Record: Journal of the British Veterinary Association; 5/10/2008, Vol. 162 Issue 19, p604
The article highlights the results of a study which describe the bacteria isolated from ejaculates from 63 rams that were suspected to be infertile. The research was conducted by Dr. Arthur Otter. The ejaculates were assessed in terms of sperm concentration, motility and abnormalities. The most...
- Fertility Relative to Fertility at Current pH.
Murphy, Gerry // CO2 Science; 12/19/2012, Vol. 15 Issue 51, p8
The article presents information on an organism's fertility relative to fertility at current pH.
- Monthly must do's -- August.
Murphy, Gerry // Farmers Weekly; 7/29/2011, Vol. 156 Issue 5, p37
The article offers several tips on how to reduce the risk of autumn infertility in livestock. It says that the practical steps to minimize the risk of the condition include reinstalling the winter feed curve, increasing the amount of bedding and keeping gilts and sows at a comfortable...
- Age-specific fertility rates of the Jeju pony ( Equus caballus).
Jeong R. Rho; Robert B. Srygley; Jae C. Choe // Journal of Ethology;
Age-specific fertility is an essential parameter of life history. Here we report age-specific fertility rates, measured as the number of foals per mare per year, for Jeju ponies aged 2?28 years. The total sample consisted of 545 foals produced by 178 mares from 1988 to 2002. The mean fertility...
- CRYPTORCHIDISM AMONG INDIGENOUS BREEDS OF BULLS IN A SEMI-ARID REGION OF NIGERIA.
Ayodeji, Adeyeye Adewale; Suwaiba, Wakkala // Macedonian Veterinary Review;
The study was carried out with the aim of determining the occurrence of cryptorchidism in bulls slaughtered at the Sokoto metropolitan abattoir. Out of 575 bulls examined, 10 (1.74%) were cryptorchid. Nine (90.00%) of this were unilateral cryptorchidism while 1 (10.00%) was bilateral...
- DYNAMICS OF SOME BASIC DEMOGRAPHIC INDICATORS IN BULGARIA FOR THE LAST CENTURY.
Petkov, G.; Marinova, J.; Chakarova, P.; Dimitrova, Sv.; Yordanov, G.; Peeva, K.; Parashkevova, B.; Chamova, G.; Marinov, V.; Zdravkova, J. // Trakia Journal of Sciences; 2010 Supplement 2, Vol. 8, p453
Purpose: to describe and analyze basic demographic indicators in the last century, to discuss the opportunities for overcoming the present demographic crisis. Methods: Information from the national health statistics and the regional office of WHO in Copenhagen for the past 100 years. A...
- Vet Viewpoint.
Petkov, G.; Marinova, J.; Chakarova, P.; Dimitrova, Sv.; Yordanov, G.; Peeva, K.; Parashkevova, B.; Chamova, G.; Marinov, V.; Zdravkova, J. // Farmers Weekly; 11/27/2009, Vol. 151 Issue 22, p42
The article presents a regional round-up of key veterinary issues in Great Britain including one from Toby Kemble of Vets Surgery who discusses the rise of calf pneumonia cases due to winter housing, another from Bridget Taylor of Wright and Morten who stresses the need for checking bull...
- Sterility Effect of the Commercial Neem Extract NeemAzal-T/SÂ® (Azadirachta indica A. Jus.) on Male Rats (Rattus norvegicus).
Morovati, Mohsen; Mahmoudi, Masoumeh; Ghazi-Khansari, Mahmoud; Jabbari, Lida; Khalilaria, Alireza // Turkish Journal of Zoology; 2009, Vol. 33 Issue 2, p201
Numerous studies with experimental animals have shown that neem seed extracts have transient and reversible effects on sterility. NeemAzal-T/SÂ® (1%) was fed to 3 experimental animal groups via stomach intubation (5, 15, and 25 mg/kg) for 6 days and the control group was given only tap water....
- DVM aims to set Guinness speed record for cat sterilizations.
Morovati, Mohsen; Mahmoudi, Masoumeh; Ghazi-Khansari, Mahmoud; Jabbari, Lida; Khalilaria, Alireza // DVM: The Newsmagazine of Veterinary Medicine; Jan2008, Vol. 39 Issue 1, p6
The article reports that veterinarian Randy Eisel who works with animal control in Collier County, Florida has spent 10 hours to neuter 56 cats last month. Eisel's goals are to promote spaying, neutering, and to earn a spot in the Guinness Book of World Records. According to Eisel, a pet...
- Status of dairy cow management and fertility in smallholder farms in Malawi.
Banda, Liveness; Kamwanja, Leonard; Chagunda, Mizeck; Ashworth, Cheryl; Roberts, David // Tropical Animal Health & Production; Apr2012, Vol. 44 Issue 4, p715
A review of the smallholder dairy production in Malawi was conducted using livestock annual reports and other literature that was supplemented with primary data from a baseline survey conducted in December 2009. Smallholder dairy farming in Malawi operates with support from institutions that...
- Identification and evaluation of a novel sperm protamine abnormality in a population of infertile males.
Vincent W. Aoki; Lihua Liu; Douglas T. Carrell // Human Reproduction; May2005, Vol. 20 Issue 5, p1298
BACKGROUND: A significant relationship exists between an abnormally high sperm protamine-1 (P1)/protamine-2 (P2) ratio and male infertility. In this study we investigate whether a decreased P1/P2 ratio is also linked to male infertility and we attempt to describe, at the protein expression...
- Oocyte production and sperm utilization patterns in semi-fertile strains of Caenorhabditis elegans.
Kadandale, Pavan; Singson, Andrew // BMC Developmental Biology; 2004, Vol. 4, p1
Background: Caenorhabditis elegans hermaphrodites are capable of producing hundreds of progeny. However, genetic and environmental factors can keep many animals from attaining their full reproductive potential. In these situations, efficient use of any functional gametes becomes more important...
- Female mice of DDK strain are fully fertile in the intersubspecific crosses with Mus musculus molossinus and M. m. castaneus.
Wei Dong Zhao; Ishikawa, Akira; Yamagata, Takahiro; Bolor, Hasbaira; Wakasugi, Noboru // Mammalian Genome; Jul2002, Vol. 13 Issue 7, p345
The female mice of DDK strain are almost infertile when mated with males from other strains. This phenomenon is caused by the early death of F1 embryos owing to the incompatibility system attributed to the ovum mutant (Om) locus on Chromosome (Chr) 11 and known as DDK syndrome. In the present...
- The effect of artificial selection for coat color on fitness in a farm population of the sable ( Martes zibellina).
Kashtanov, S. N.; Lazebny, O. E.; Beketov, S. V.; Imasheva, A. G. // Russian Journal of Genetics; Jun2008, Vol. 44 Issue 6, p727
The relationship between the response to artificial selection for darker coat color and fitness in a farm population of the sable ( Martes zibellinaL.) from the Pushkinskoe Fur Farm (Moscow oblast) was studied. The selection was performed during 41 years. By the moment of the study, a response...
- Genetic Dissection of Hybrid Incompatibilities Between Drosophila simulans and D. mauritiana. I. Differential Accumulation of Hybrid Male Sterility Effects on the X and Autosomes.
Yun Tao; Sining Chen; Hartl, Daniel L.; Laurie, Cathy C. // Genetics; Aug2003, Vol. 164 Issue 4, p1383
Details a study that introgressed segments of the Drosophila mauritania third chromosome into a D. simulans genetic background and tested as homozygotes for viability, male fertility, and female fertility. Evolutionary mechanisms of speciation; Indication that many segments were male sterile,...
- Fitness-related patterns of genetic variation in rhesus macaques.
Gregory Blomquist // Genetica; Mar2009, Vol. 135 Issue 2, p209
AbstractÂ Â The patterning of quantitative genetic descriptions of genetic and residual variation for 15 skeletal and six life history traits was explored in a semi-free-ranging group of rhesus macaques (Macaca mulatta Zimmerman 1780). I tested theoretical predictions that explain the...
- Fertility proofs are good news for UK industry.
Buss, Jessica; Allison, Richard // Farmers Weekly; 7/19/2002, Vol. 137 Issue 3, p44
Reports on the launching of fertility proofs in Great Britain in 2003 which would allow dairy bulls to be selected to improve milk yield and produce fertile cows. Reasons for the slow arrival of a fertility index in Great Britain; Advantages of fertility index; Information on the Nottingham...
- Productive and reproductive performance and egg quality of laying hens fed diets containing different levels of date pits with enzyme supplementations.
Al-saffar, Abdulameer; Attia, Youssef; Mahmoud, Mohamed; Zewell, Hassan; Bovera, Fulvia // Tropical Animal Health & Production; Jan2013, Vol. 45 Issue 1, p327
Two experiments were conducted to investigate the effect of phytase and/or multienzymes (protease, amyloglucoidase, xylanase, B-glucanase, cellulose, and hemicellulase) on improving the utilization of date pit (DP) in laying hens. In the first one, DP completely replaced corn in four isocaloric...
- Female begging in European robins: do neighbors eavesdrop for extrapair copulations?
Joe A. Tobias; Nathalie Seddon // Behavioral Ecology; Sep2002, Vol. 13 Issue 5, p637
Female European robins beg for food from their mates throughout the breeding season using far-carrying â€œseepâ€ calls which resemble the begging calls of fledglings. We investigated the possibility that these calls are eavesdropped by neighboring males and used as cues to target...
- Evolutive peritoneal disease after conservative management and the use of infertility drugs in a patient with stage IIIC borderline microâ€papillary serous carcinoma (MPSC) of the ovary: Case report.
Erkut Attar; Sinan Berkman; Samet Topuz; Bulent Baysal; Suleyman Akhan; Joseph T. Chambers // Human Reproduction; June,2004, Vol. 19 Issue 6, p1472
A young nulliparous woman with stage IIIC bilateral borderline microâ€papillary serous carcinoma (MPSC) of the ovary underwent conservative surgery with optimal preservation of future fertility. The left ovary and a substantial portion of the right ovary were removed. The patient became...
- Seasonal infertility on the up.
Erkut Attar; Sinan Berkman; Samet Topuz; Bulent Baysal; Suleyman Akhan; Joseph T. Chambers // Farmers Weekly; 11/18/2011, Vol. 156 Issue 21, p50
The author reports on the increase in seasonal infertility in pigs at his farm in Stewartstown in County Tyrone, Northern Ireland. He notes the detection of a few sows that must have reabsorbed the pregnancy not long after being tested in pig, and the speedy exit of animals to the cull sow...
- Antifertility Activity Of Dihydroartemisinin In Male Albino Rats.
Nwanjo, H.U.; Iroagba, I.I.; Nnatuanya, I.N.; Eze, N.A. // Internet Journal of Endocrinology; 2007, Vol. 4 Issue 1, p3
The effects of dihydroartemisinin on epididymal sperm characteristics and testosterone levels in male albino rats were studied. Dihydoartemisinin treatment for 7 days and 21 days in the rats resulted in a decrease in the sperm count, sperm motility and sperm viability. The abnormalities noticed...
- Should fertilization treatment start with reducing stress?
Daniel M. Campagne // Human Reproduction; Jul2006, Vol. 21 Issue 7, p1651
In the past few decades, new and more efficient techniques to help solve fertility problems have become widely available throughout the developed world. These techniques include hormonal stimulation, ICSI, gamete intra-Fallopian transfer (GIFT) and IVF, and their cost is, on average,...
- Comparison of the biopsy and cytobrush techniques for diagnosis of subclinical endometritis in mares.
Buczkowska, Justyna; Kozdrowski, Roland; Nowak, Marcin; Raś, Andrzej; Staroniewicz, Zdzisław; Siemieniuch, Marta J. // Reproductive Biology & Endocrinology; 2014, Vol. 12 Issue 1, p1
Background: Endometritis is a major cause of infertility in the mare. Therefore, the diagnosis of this disease is very important in veterinary practice. The objective of this study was to compare bacteriological and cytological results obtained from the mare uterus using biopsy (EB) and...
- Selection bias in semen studies due to self-selection of volunteers.
A. Muller; E. De La Rochebrochard; C. Labb-Declves; P. Jouannet; L. Bujan; R. Mieusset; D. Le Lannou; J.F. Guerin; M. Benchaib; R. Slama; A. Spira // Human Reproduction; Dec2004, Vol. 19 Issue 12, p2838
BACKGROUND: Reports of a secular decrease in semen quality remain controversial, particularly due to the possibility of selection bias. We aimed to describe the potential bias due to self-selection of volunteers in semen studies involving fecund men. METHODS: Using data from the French...
- No association of the A260G and A386G DAZL single nucleotide polymorphisms with male infertility in a Caucasian population.
Petra Tschanter; Elena Kostova; C.Marc Luetjens; Trevor G. Cooper; Eberhard Nieschlag // Human Reproduction; Dec2004, Vol. 19 Issue 12, p2771
BACKGROUND: The human DAZ gene family includes two autosomal genes, BOULE and DAZL, and a Y-chromosomal DAZ gene cluster. All are RNA-binding proteins and assumed to be master regulators of germline gene expression. We have investigated the impact of two DAZL polymorphisms, located at nucleotide...
- More comfort, less stress can solve sow infertility.
Lawrence, Chrissie // Farmers Weekly; 10/20/2006, Vol. 145 Issue 16, p37
The article reports on the efforts of farmers to improve sow fertility in Great Britain. BPEX AI program manager Angela Cliff says there is no definite pattern with infertility, so it is vital to provide sows with the most comfortable, stress-free environment possible, so the impact of any...
- A model for the evolution of high frequencies of males in an androdioecious plant based on a cross-compatibility advantage of males.
Vassiliadis, Christine; Valero, Myriam; Saumitou-Laprade, Pierre; Godelle, Bernard // Heredity; Nov2000, Vol. 85 Issue 5, p413
75) and phenotypic selection models for the maintenance of androdioecy predict that males (female-sterile individuals) must have an advantage in fertility (K) of at least two in order to invade a hermaphroditic population, and that their equilibrium frequency (xeq=(K - 2)/2(K - 1)) is always...