Results 31 to 40 of about 356,642 (291)
Low-Cost QCM Sensor System for Screening Semen Samples [PDF]
, 2010 Artificial insemination is a well-established part of modern agricultural practice. A viable semen sample is judged by the total number of spermatozoa (sperm) in the sample and the motility of the sperm.
Atherton, Shaun +6 more
core +2 more sources
The Iraqi Journal of Veterinary Medicine, 2013 The objective of this study was to investigate the percentage of male and female ovine embryos produced after oocytes fertilization by sperm selected with self-migration (swim-up) technique.
Saja Hadi
doaj +1 more source
The enriched Y-bearing sperm combined with delayed fixed-time artificial insemination for obtaining male Simmental crossbred offspring [PDF]
Veterinary World, 2022 Background and Aim: The production of male calf beef cattle is an agricultural innovation needed to increase the farm's productivity as a provider of meat sources.
Dewa Ketut Meles +7 more
doaj +1 more source
PLoS ONE, 2012 BackgroundSeveral teleost species have evolved anterior extensions of the swim bladder which come close to or directly contact the inner ears. A few comparative studies have shown that these morphological specializations may enhance hearing abilities ...
Tanja Schulz-Mirbach +2 more
doaj +1 more source
Will souped up salmon sink or swim? [PDF]
Nature, 2000 A company in Massachusetts is seeking permission to market salmon genetically modified to grow faster than normal. Tony Reichhardt explores the potential ecological risks, should the fish escape from salmon farms.
openaire +1 more source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2015 Neste estudo, 67 ejaculados foram avaliados, antes e depois da técnica de swim-up, em relação à qualidade seminal e à presença do CAEV. Das 67 amostras testadas por PCRn, antes do swim-up, 47 (70,15%) foram positivas para o DNA pró-viral.
A.A. Ávila +7 more
doaj +1 more source
Dramatic effect of pop-up satellite tags on eel swimming [PDF]
Naturwissenschaften, 2011 The journey of the European eel to the spawning area in the Sargasso Sea is still a mystery. Several trials have been carried out to follow migrating eels with pop-up satellite tags (PSATs), without much success. As eels are very efficient swimmers, tags likely interfere with their high swimming efficiency.
Burgerhout, Erik +5 more
openaire +2 more sources
Effects of bovine spermatozoa preparation on embryonic development in vitro
Reproductive Biology and Endocrinology, 2006 The aim of our research was to examine the ability of density gradient preparation BoviPure® and swim up method on bull sperm separation and in vitro embryo production (IVP) systems.
Cergolj Marijan +5 more
doaj +1 more source
Effect of the pH in the enrichment of X or Y sex chromosome-bearing sperm in bovine [PDF]
Veterinary World, 2019 Background and Aim: Studies have shown that the pH of the vagina during the course of fertilization may influence the migration of X- and Y-bearing spermatozoa and thus leading to skewness in the sex of the offspring. Hence, this study was carried out to
Nidhi P. Raval +3 more
doaj +1 more source
Digit-only sauropod pes trackways from China - evidence of swimming or a preservational phenomenon? [PDF]
, 2016 For more than 70 years unusual sauropod trackways have played a pivotal role in debates about the swimming ability of sauropods. Most claims that sauropods could swim have been based on manus-only or manus-dominated trackways.
C Gierliński +49 more
core +3 more sources