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Factors affecting reproductive efficiency in German Shepherd bitches producing litters for Police of the Czech Republic
dog reproduction whelping litter size puppy losses
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2016/12/20
The present study on German Shepherd bitches bred in the same environment of a private kennel and producing offspring for working purposes aimed to ascertain if any of the parameters: litter size, num...
Bisphenol S instead of bisphenol A:a story of reproductive disruption by regretable substitution–a review
human health environment endocrine disruptor reproduction oocyte sperm
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2016/11/11
A range of substances that are released into the environment, foodstuffs and drinking water as a result of human activity were originally considered relatively harmless, and it was only later that the...
Effects of Dietary Energy Levels on the Physiological Parameters and Reproductive Performance of Gestating Gilts
Energy Level Gilts Body Weight Backfat Thickness Reproductive Performance
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2016/7/27
This experiment was conducted to investigate the effects of dietary energy levels on the physiological parameters and reproductive performance of gestating first parity sows. A total of 52 F1 gilts (Y...
Number of Calves Produced at Specified Age as a Measure of Reproductive Performance in Beef Cattle under Artificially-Inseminated Breeding Scheme
Beef Cattle Genetic Parameter Number of Calves Produced Reproductive Performance
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2016/4/29
Reproductive abilities in beef cattle herds are receiving increased attention due to recent rises in production costs. To achieve more efficient management, a measure of fertility, namely the number o...
Post-calving administration of uterine stimulants does not improve reproductive performance in dairy cows
endometritis oxytocin dinoprost ergometrin reproductive parameters
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2015/11/26
The aim of this study was to evaluate the effects of administration of oxytocin, in combination with
dinoprost or ergometrin, after parturition on the occurrence of clinical endometritis and subsequ...
Influence of long-term exposure to lead on its accumulation and elimination from tissues and on selected reproductive parameters in the Prussian carp (Carassius gibelio B.) in pond environment
Pb fish bioaccumulation depuration luteinizing hormone
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2015/10/29
The bioaccumulation of lead in selected tissues of Prussian carp kept in pond condition during 12 and 24 months of exposure to different doses (8, 13, 24, and 49 mg/kg) of this metal in feed and its e...
Estimation of genetic parameters for reproductive traits in Mehraban sheep
heritability genetic correlation
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2015/7/7
Studied traits were litter size at birth (LSB), litter size at weaning (LSW), litter mean weight per lamb born
(LMWLB), litter mean weight per lamb weaned (LMWLW), total litter weight at birth (TLWB...
Distribution of tetraspanin family protein CD9 in bull reproductive system
monoclonal antibody immunohistochemistry sperm
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2015/7/3
The CD9 cell surface molecule has been found to be important for the fertilization process of mammals. The aim of this study was to investigate, whether the molecule CD9 is expressed on bull sperm dur...
Effect of housing system on reproductive results in ring-necked pheasants (Phasianus colchicus L.)
gamebird keeping performance reproduction
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2015/7/2
A comparative analysis of reproduction parameters and hatchability results of pheasants raised under two different housing systems (cages and aviaries) was performed. In the first system the pheasants...
A high incidence of leukocyte chimerism (60,XX/60,XY) in single born heifers culled due to underdevelopment of internal reproductive tracts
cattle disorders of sex development freemartinism
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2015/7/2
Freemartinism, a primary disorder of sex development (DSD) in cattle, is associated with leukocyte chimerism (60,XX/60,XY). The diagnosis of DSD is easy if it is known that a heifer with abnormally de...
Uterine size in replacement gilts associated with age, body weight, growth rate, and reproductive status
pig reproduction puberty uterus
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2015/7/2
The objective of the present study was to determine the association between the uterine size and age, body weight, growth rate, and reproductive status in Landrace × Yorkshire crossbred gilts. Genital...
Reproductive efficiency of Pelibuey and Romanov × Pelibuey ewes synchronized with synthetic progesterone and low doses of PMSG under a hot environment
hair-breed sheep estrus synchronization fertility eCG heat stress
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2015/6/24
Thirty-nine multiparous ewes (19 Pelibuey and 20 Romanov × Pelibuey) treated with fluorogestone acetate impregnated intravaginal sponges were used to evaluate the effects of low pregnant mare serum go...
A comparison of lutein, spray-dried Chlorella, and synthetic carotenoids effects on yolk colour, oxidative stability, and reproductive performance of laying hens
carophyll alga egg quality yolk colour cooking length
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2015/6/24
ISA Brown hens were fed diets supplemented with the synthetic carotenoids Carophyll Red and Carophyll Yellow at 20 and 15 mg/kg, respectively, lutein at 250 mg/kg, and the algae Chlorella at 12.5 g/kg...
Effects of dietary arginine supplementation on reproductive performance and immunity of sows
l-arginine litter performance placenta humoral immune
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2015/6/24
Arginine (Arg) is considered to have beneficial effects on placental development and function, as well as reproductive performance. The well-developed placenta is highly required in late gestation for...
Genetic effects of melatonin receptor genes on chicken reproductive traits
MTNR1A MTNR1B MTNR1C polymorphism egg production traits
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2015/6/24
The melatonin receptors are G protein-coupled receptors (GPCR) that bind melatonin. Three types of melatonin receptors have been cloned. The MTNR1A (or Mel1A or MT1) and MTNR1B (or Mel1B or MT2) recep...