Results 71 to 80 of about 75,699 (223)

ARTIFICIAL INSEMINATION [PDF]

open access: yesThe Lancet, 1945
M, Barton, K, Walker, B P, Wiesner
  +5 more sources

GHRH|HaeIII Gene Polymorphism in Dairy and Beef Cattle at National Livestock Breeding Centers [PDF]

open access: yes, 2013
This study was aimed to identify polymorphism of growth hormone releasing hormone (GHRH) gene in 89 heads of Holstein-Friesian (HF) dairy cattle from Lembang Artificial Insemination Center/LAIC (17 bulls), Singosari Artificial Insemination Center/SAIC ...
Anggraini, A. (A)   +2 more
core  

Solitary Confinement: Surprising Post‐Copulatory Behaviour of an Australian Species of Wishbone Spider (Mygalomorphae: Anamidae: Aname)

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Araneomorph spiders are regarded as a model group for sexual selection studies, while the mating system of mygalomorph spiders remains largely unknown. We here report on the mating behaviour of an Australian wishbone spider species, involving a novel post‐copulatory behaviour for mygalomorph spiders (‘burrow plugging’).
Andrea Piccinini   +5 more
wiley   +1 more source

Migration rate, timing of sex, and resident genetic diversity jointly shape effective gene flow during rotifer colonization

open access: yesLimnology and Oceanography, Volume 71, Issue 5, May 2026.
Abstract Dispersal is a complex process that affects all living organisms, with the settlement phase being particularly critical. This phase depends on the interaction between the environmental conditions of the new habitat and the biological traits of both resident and immigrant populations.
Cristina Arenas‐Sánchez   +4 more
wiley   +1 more source

COMPARISON OF hCG AND GnRH FOR SYNCHRONIZATION OF THE FOLLICULAR WAVE IN SAANEN GOATS DURING THE BREEDING SEASON

open access: yesSlovenian Veterinary Research
This study aimed to compare the effects of a single dose of GnRH or hCG administered at the beginning of the short-term oestrus synchronization protocol on ≥4 mm diameter follicles in Saanen goats during the breeding season.
Ibrahim Dogan   +5 more
doaj   +1 more source

Bisexual releases are as effective as male‐only releases to control Drosophila suzukii with the sterile insect technique

open access: yesPest Management Science, Volume 82, Issue 5, Page 4536-4543, May 2026.
Bisexual releases are as effective as male‐only releases to control Drosophila suzukii with the sterile insect technique. Releasing sterile Drosophila suzukii males or males and females in cages led to the same degree of induced sterility in wild females.
Alexandra Labbetoul, Simon Fellous
wiley   +1 more source

Comparison of Tree‐Based Machine Learning Algorithms for Classification of Livestock Breeds Based On Post‐Thaw Spermatological Parameters

open access: yesVeterinary Medicine and Science
Reproductive efficiency is a crucial determinant of livestock productivity, with sperm quality being a key factor in successful fertilization. The quantitative assessment of spermatozoa using computer‐assisted sperm analysis (CASA) yields valuable ...
Doğukan Özen   +7 more
doaj   +1 more source

Involuntary reduction in vigour of calves born from sexed semen [PDF]

open access: yes, 2016
The objective of this study was to compare the reproductive traits of heifers and the development characteristics of their calves following artificial insemination (AI) with sexed and non-sexed semen. The analysed characteristics included conception rate,
Bogdanović, Vladan   +5 more
core   +1 more source

Protective Effect of Intracellular Compounds of Lactobacillus plantarum on Goat Sperm Quality During Cryopreservation

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
Intracellular compounds from Lactobacillus plantarum were added to a goat sperm cryopreservation extender. A concentration of 20 µL/mL improved post‐thaw sperm quality, whereas higher concentrations (80–100 µL/mL) had detrimental effects. ABSTRACT Background Cryopreservation of sperm is a key strategy for preserving and transmitting the genetic traits ...
Farshad Ariyan   +3 more
wiley   +1 more source

Cryopreservation of ram semen: baicalein efficiency on oxidative stress, chromatin integrity, viability and motility post thaw

open access: yesFrontiers in Veterinary Science
Baicalein (B) has potential antioxidant properties, but it has not been tested as a ram semen extender. This study aimed to assess the impact of B on various sperm parameters and determine its potential influence on semen quality after the freeze-thawing
Fatih Avdatek   +7 more
doaj   +1 more source

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