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G. D. Mshelia, J. D. Amin and S. U. R. Chaudhari
Pakistan Veterinary Journal , 2005,
Abstract: The haematologic parameters of the Nigerian Mongrel bitch were investigated at different stages of the reproductive cycle to determine their clinical values. Results showed that red blood cell (RBC) counts were highest during anoestrus, with a mean of 5.09 0.62 x 106/μL, while lowest values were recorded during pregnancy, the difference was significant (P<0.05). White blood cell (WBC) counts, packed cell volume (PCV) and haemoglobin concentration (Hb) showed an increasing pattern from anoestrus to proestrus and then decreased with transition from proestrus to oestrus. Total WBC counts were highest during dioestrus and almost twice the value recorded in pregnancy. It appears that WBC count may be used for pregnancy diagnosis in the Nigerian Mongrel bitch.
Ovariohysterectomy in the Bitch  [PDF]
Djemil Bencharif,Lamia Amirat,Annabelle Garand,Daniel Tainturier
Obstetrics and Gynecology International , 2010, DOI: 10.1155/2010/542693
Abstract: Ovariohysterectomy is a surgical procedure widely employed in practice by vets. It is indicated in cases of pyometra, uterine tumours, or other pathologies. This procedure should only be undertaken if the bitch is in a fit state to withstand general anaesthesia. However, the procedure is contradicated if the bitch presents a generalised condition with hypothermia, dehydration, and mydriasis. Ovariohysterectomy is generally performed via the linea alba. Per-vaginal hysterectomy can also be performed in the event of uterine prolapse, if the latter cannot be reduced or if has been traumatised to such an extent that it cannot be replaced safely. Specific and nonspecific complictions can occur as hemorrhage, adherences, urinary incontinence, return to oestrus including repeat surgery. After an ovariectomy, bitches tend to put on weight, it is therefore important to inform the owner and to reduce the daily ration by 10%. 1. Introduction Ovariohysterectomy in the bitch is a surgical procedure consisting of laparotomy with ablation of both ovaries and the uterus. This procedure is indicated for the following [1]. (i)Uterine tumours.(ii)Serious uterine lesions, whether traumatic or infectious in origin; the most common cause being dystocia during parturition.(iii)Other pathologies that justify an ovariohysterectomy include metorrhagia, pyometria, glandular-cystic uterine hyperplasia with secondary infection leading to chronic metritis; the latter usually occurs postoestrus (“postoestrus metritis”) and is initially treated medically, as with acute postpartum metritis, surgery becomes a necessity once the disease becomes chronic and recurrent [2–5]. These alterations in the uterine mucosa are the result of ovarian hormonal imbalances. Metritic pathologies have become increasingly common since the introduction and growing popularity of synthetic progesterone treatments such as medroxyprogesterone acetate, which are used to prevent or eliminate heats where the onset of metritis is common especially if they are used after the 3rd day of pro-oestrus [6]. This procedure should only be undertaken if the bitch is in a fit state to withstand general anaesthesia. She will reabsorb the toxins produced in the uterus, or lick any pus that accumulates at the lower commissure of the vulva, leading to gastroenteritis and hepatonephritis and subsequently diarrhoea, vomiting, and raised urea (normal value around 0.6?g/L), and creatinine (normal value around 10?mg/L). However, if the ureamia is greater than 0.6?g/L, we advise the administration of Lespedeza capitata LESPEDEZIA
The reproductive parameters in birds at technogenic contaminated environment Репродуктивные показатели птиц в техногенно загрязненном ландшафте
Kuranov Boris
Principy èkologii , 2012, DOI: 1234567
Abstract: The reproductive parameters in Fieldfare, Blyth reed warbler and Pied flycatcher in the zone of radiochemical contamination was studied. Nesting density, clutch size and egg volume of all bird species in the impact zone are not reduced. in comparison with the controls. In Pied flycatcher the embryonic mortality is increased in the impact zone, while in Fieldfare and Blyth reed warbler increased chick mortality is noted. In Fieldfare significant influence of technogenic factors on the breeding success is traced. In other species this effect is not observed. Изучены репродуктивные показатели рябинника, садовой камышевки и мухоловки-пеструшки в зоне радиохимического загрязнения среды. У всех видов птиц в импактной зоне не наблюдается снижения плотности гнездования, величины кладки и объема яиц по сравнению с контролем. У мухоловки-пеструшки в импактной зоне повышена эмбриональная смертность, а у рябинника и садовой камышевки отмечено увеличение птенцовой смертности. У рябинника прослеживается достоверное влияние техногенных факторов на успешность размножения, у других видов данный эффект не наблюдается.
The Effect of Pollen on Some Reproductive Parameters of Male Rats
Güldeniz Selmano?lu,Sibel Hayretda?,Dürdane Kolankaya,Asl? ?zk?k Tüylü
Pesticidi i Fitomedicina , 2009,
Abstract: Honeybee pollen is consumed as natural food in healthy human diet in many European and Asian countries. The aim of this study was to investigate the effect of pollen use on some reproductive parameters. In this study, mature male rats were fed on pollen of three different plant sources (Trifolium spp., Raphanus spp. and Cistus spp.) at 60 mg/per animal/ per day over a 30-day period. At the end of the treatment, testosterone levels of rats were analysed and weights of testis, epididymis, prostate and seminal vesicle were recorded. In addition, epididymal sperms were counted. There were increases in testosterone levels, sperm counts and daily sperm production of rats fed with pollen of Raphanus spp. and Cistus spp. There were no significant changes in absolute weights, except in prostate weights. Also there were no changes in relative testis,prostate and seminal vesicle weights of rats fed on pollen, but relative epididymis weights of rats in pollen groups decreased. The results of this study show that bee pollen caused an increase in testosterone level and sperm counts of male rats. We suggest that bee pollen has an androgenic effect.
Genetic parameters of reproductive traits in pigs: a contribution  [cached]
G.L. Restelli,G. Pagnacco
Italian Journal of Animal Science , 2011, DOI: 10.4081/ijas.2003.s1.76
Abstract: Generally pig breeding efficiency is defined as the number of piglets weaned per sow per year, so in every pig breeding programmes, great emphasis is placed on improving reproductive traits in sow lines and generally, the evaluation of litter size is carried out in most selection planes. Usually, the reproduction breeding goal is to increase the number of piglets born, but this trait, as reported by Hanenberg et al. (2001) gives an undesirable correlation with the number of stillborn piglets. Litter size is the result of a large number of traits as number of total piglets born, number of born alive, stillbirth, weaned survival; as reported by Tummaruk et al. (2000) the variation in these parameters is influenced by genetic value of the sow and by environmental factors, such as management and season. Regarding the genetic influence on the litter size, we know that the breed can influence the number of born, but its interaction with stillbirth is not significant, although Leenhouwers et al. (1999) found an higher stillbirth incidence in purebred than in crossbred litters........
Induction of whelping in a bitch  [PDF]
Rameez Ali, S. P. Shukla and S. P. Nema
International Journal of Advanced Research , 2013,
Abstract: Parturition is a physiological process involved in expulsion of normal viable fetus from uterus through the maternal passage by natural forces alone at a stage when the young one is capable of independent existence(Roberts,2004).This act though physiological is accompanied by pain, uneasiness and violent efforts in the bitch termed as labor pains(Sane et al.,1994).Bitches near whelping often can inhibit labor until favourable environmental conditions are present and if satisfactory environment is not present, whelping may be prolonged and difficult(Arthur et al.,2001). Longer gestation periods should be checked and professional advice should be sought since prolonged gestation may lead to fetal and maternal death.
Refining Reproductive Parameters for Modelling Sustainability and Extinction in Hunted Primate Populations in the Amazon  [PDF]
Mark Bowler, Matt Anderson, Daniel Montes, Pedro Pérez, Pedro Mayor
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0093625
Abstract: Primates are frequently hunted in Amazonia. Assessing the sustainability of hunting is essential to conservation planning. The most-used sustainability model, the ‘Production Model’, and more recent spatial models, rely on basic reproductive parameters for accuracy. These parameters are often crudely estimated. To date, parameters used for the Amazon’s most-hunted primate, the woolly monkey (Lagothrix spp.), come from captive populations in the 1960s, when captive births were rare. Furthermore, woolly monkeys have since been split into five species. We provide reproductive parameters calculated by examining the reproductive organs of female Poeppig’s woolly monkeys (Lagothrix poeppigii), collected by hunters as part of their normal subsistence activity. Production was 0.48–0.54 young per female per year, and an interbirth interval of 22.3 to 25.2 months, similar to parameters from captive populations. However, breeding was seasonal, which imposes limits on the maximum reproductive rate attainable. We recommend the use of spatial models over the Production Model, since they are less sensitive to error in estimated reproductive rates. Further refinements to reproductive parameters are needed for most primate taxa. Methods like ours verify the suitability of captive reproductive rates for sustainability analysis and population modelling for populations under differing conditions of hunting pressure and seasonality. Without such research, population modelling is based largely on guesswork.
Effect of thymocytes on reproductive parameters of nude female mice
PETRICEVICH, Vera Lúcia;FERREIRA, Vera Regina Farago;
Brazilian Journal of Veterinary Research and Animal Science , 2000, DOI: 10.1590/S1413-95962000000600002
Abstract: heterozygous and homozygous nude female mice with the genetic background balb/c were housed in a clean conventional colony at the laboratory animal facilities of instituto butantan. nude animals are known to have severe deficiencies in reproductive function. nude female is usually sterile where only 8.8% of them present spontaneous fertility. in order to study the involvement of the thymus for these reproductive defects, athymic nude female at different stages of development were treated with thymocytes suspensions and mated with heterozygous males. the results obtained for nude females at 10 and 30 days of age were respectively: a) number of pregnant = 48% and 12%; b) number offspring per female = 5.0 and 4.0; c) natality rates were 2.40 and 0.48; and d) under conditions used in this study the life span for nude animals was prolonged until 7 months. the use of this treatment would increase the animal numbers, which are important research models for biomedical investigations. considering that nude mice are difficult to raise, an obtainment of these animals in higher number by this method appear to be an essential event, and might offer to grow better for the animals, which are used for breeding.
The Predicted Influence of Climate Change on Lesser Prairie-Chicken Reproductive Parameters  [PDF]
Blake A. Grisham, Clint W. Boal, David A. Haukos, Dawn M. Davis, Kathy K. Boydston, Charles Dixon, Willard R. Heck
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0068225
Abstract: The Southern High Plains is anticipated to experience significant changes in temperature and precipitation due to climate change. These changes may influence the lesser prairie-chicken (Tympanuchus pallidicinctus) in positive or negative ways. We assessed the potential changes in clutch size, incubation start date, and nest survival for lesser prairie-chickens for the years 2050 and 2080 based on modeled predictions of climate change and reproductive data for lesser prairie-chickens from 2001–2011 on the Southern High Plains of Texas and New Mexico. We developed 9 a priori models to assess the relationship between reproductive parameters and biologically relevant weather conditions. We selected weather variable(s) with the most model support and then obtained future predicted values from climatewizard.org. We conducted 1,000 simulations using each reproductive parameter’s linear equation obtained from regression calculations, and the future predicted value for each weather variable to predict future reproductive parameter values for lesser prairie-chickens. There was a high degree of model uncertainty for each reproductive value. Winter temperature had the greatest effect size for all three parameters, suggesting a negative relationship between above-average winter temperature and reproductive output. The above-average winter temperatures are correlated to La Ni?a events, which negatively affect lesser prairie-chickens through resulting drought conditions. By 2050 and 2080, nest survival was predicted to be below levels considered viable for population persistence; however, our assessment did not consider annual survival of adults, chick survival, or the positive benefit of habitat management and conservation, which may ultimately offset the potentially negative effect of drought on nest survival.
Relation of Reproductive Factors and Heel Quantitative Ultrasound Parameters in Normal Women of Tehran
B Larijani,A Soltani,A Keshtkar,M Sedaghat
Iranian Journal of Public Health , 2004,
Abstract: Quantitative Ultrasound (QUS) is a noninvasive, inexpensive and portable method for bone densitometry. It may measure some other parameters in addition to BMD, like elasticity and micro architecture. This study designed to determine the relation between reproductive factors and calcaneus QUS parameters in normal women of Tehran. BMD of heel in 151 normal women, 20-72Y/O (participator of Iranian Multi center Osteoporosis Study) was assessed using Achilles+ (GE, Lunar Corporation, USA). After assessment of normal values, Stiffness Index percentiles acquired. With consideration of correlation between variables, multiple regression analysis was used. Mean±SD values of Speed of Sound (SOS), Broad Band Ultrasound Attenuation (BUA) and Stiffness Index (SI), was 36/75 1527/25, 121/42 15/1, 94/46 17/92, respectively. Parameters decreased with age (P<0/01). Years of menopause significantly related with QUS parameters and age of menopause significant related with SOS and SI. Results show effectiveness of some reproductive factors on QUS parameters.
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