Results 41 to 50 of about 175,648 (355)

Review: Semen handling, time of insemination and insemination technique in cattle.

open access: yesAnimal, 2018
In cattle artificial insemination plays not only a vital role in the successful establishment of pregnancy, which is a prerequisite for initiation of the subsequent lactation, but also in accelerating genetic improvement and facilitating the distribution
M. Diskin
semanticscholar   +1 more source

Conception Rates of Holstein-Friesian Cows Inseminated Artificially with Reducing Frozen Semen Doses

open access: yesMedia Peternakan, 2016
Conception rates of Holstein Friesian (HF) acceptors were evaluated in artificial insemination (AI) mating using three frozen semen doses of the straws per volume of 0.25 cc.
Anneke Anggraeni   +4 more
doaj   +1 more source

Prognostic factors in intrauterine insemination cycles

open access: yesJBRA Assisted Reproduction, 2018
Objective This study aimed to evaluate the clinical pregnancy rate of intrauterine insemination cycles in relation to patient age, cause of infertility, ovulation induction method, number of mature follicles and sperm with progressive motility.
F. Sicchieri   +5 more
semanticscholar   +1 more source

Embryo donation parents' attitudes towards donors : comparison with adoption [PDF]

open access: yes, 2008
BACKGROUND: Embryo donation produces a family structure where neither rearing parent is genetically related to the child, as in adoption. It is not known how embryo donation parents view the donors compared with how adoptive parents view the birth ...
MacCallum, Fiona
core   +1 more source

Functional anatomy of the spermatheca and its duct in the seed bug Lygaeus simulans (Heteroptera: Lygaeidae)

open access: yesEuropean Journal of Entomology, 2000
Female genitalia of lygaeid bugs are characterized by a tube-shaped ductus receptaculi (spermathecal duct) connecting the bursa copulatrix with the highly coiled receptaculum seminis (spermatheca).
Robert GSCHWENTNER, Andreas TADLER
doaj   +1 more source

Environmental effects on progesterone profile measures of dairy cow fertility [PDF]

open access: yes, 2006
Environmental effects on fertility measures early in lactation, such as the interval from calving to first luteal activity (CLA), proportion of samples with luteal activity during the first 60 days after calving (PLA) and interval to first ovulatory ...
B. Berglund   +32 more
core   +1 more source

The Effectiveness of Pharmacological Synchronization of the Estrous Cycle in Hinds (Cervus elaphus L.): A Pilot Field Trial

open access: yesAnimals, 2020
The aim was to estimate the effective pharmacological method of the estrous cycle synchronization by checking the effects of synchronization by measurement of progesterone (P4) and 17-beta estradiol (E2) concentration by RIA and artificial insemination ...
Anna J. Korzekwa   +3 more
doaj   +1 more source

Use of Infrared Thermography during Ejaculation Process and Its Link with Semen Quality and Freezability in Dogs

open access: yesAnimals, 2021
This study aimed to describe the thermal variation of external reproductive tracts during ejaculation in relation to sperm quality in dogs. Forty-six adult fertile dogs were monitored using a thermal camera before, during and after the semen collection ...
Koray Tekin   +11 more
doaj   +1 more source

Precursor A-Kinase Anchor Protein 4 as a Predictive Biomarker of Post-Thaw Semen Quality in Goats

open access: yesVeterinary Sciences
The evaluation of sperm proteins has emerged as a promising approach to predicting semen quality across animal species. This study investigated the relationship between post-thaw concentrations of precursor A-kinase anchor protein 4 (proAKAP4) and ...
Ahmet Eser   +6 more
doaj   +1 more source

Climate‐Smart Dairy Practices: The Role of Practice Clusters in Enhancing the Performance of Dairy Farms in Kenya

open access: yesAgribusiness, EarlyView.
ABSTRACT Climate variability is affecting the productivity, profitability, and resilience of smallholder dairy producers in developing countries. The adoption of climate‐smart (CS) dairy practices has been promoted to mitigate these negative effects. However, while interest in dairy CS practices is growing, empirical evidence on their adoption patterns
Mercy Mburu   +4 more
wiley   +1 more source

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