Results 1 to 10 of about 1,102,149 (353)

Density and reproductive characteristics of female brown bears in the Cantabrian Mountains, NW Spain

The European Zoological Journal, 2018
Here we present annual nearest-neighbour distances (as a proxy of density) between females with cubs-of-the-year (hereafter FCOY) and reproductive characteristics of brown bears Ursus arctos in the Cantabrian Mountains (NW Spain), from 1989 to 2017. FCOY
V. Penteriani, A. Zarzo-Arias, G. Bombieri, D. Cañedo, J. Díaz García, M. M. Delgado, P. Peón Torre, M. Fernández Otero, P. Vázquez García, V. M. Vázquez, T. Sánchez Corominas   +10 more
doaj   +1 more source

Evaluasi Produktivitas Domba Ekor Gemuk Berdasar Reproductive Rate

Caraka Tani: Journal of Sustainable Agriculture, 2018
Fat Tailed Sheep represent one of Indonesian livestock that having excellence of comparability with other ruminants livestock. The excellence is quickly adult, short of pregnant age, and has the nature of bearing twin, so if evaluated from development ...
Sigit Prastowo
doaj   +1 more source

Reproductive performance parameters in a large population of game-ranched white rhinoceroses (Ceratotherium simum simum) [PDF]

, 2017
The population of free-roaming white rhinoceroses (Ceratotherium simum) is under serious threat. Captive breeding of this species is therefore becoming more important, but this is challenging and often not successful.
Durrant, Barbara, Govaere, Jan, Hostens, Miel, Otto, Michelle, Van Soom, Ann, van Zijll Langhout, Martine, Ververs, Cyrillus   +6 more
core   +3 more sources

Comparison of IVF/ICSI outcomes in advanced reproductive age patients with polycystic ovary syndrome and advanced reproductive age normal controls: a retrospective cohort study

BMC Pregnancy and Childbirth, 2023
Background At present, there are few studies on whether there is reproductive advantage in advanced polycystic ovary syndrome (PCOS) patients, and the existing research results are also controversial.
Xing Zhang, Fang Lian, Danqi Liu
doaj   +1 more source

Genetic Relationship of Body Energy and Blood Metabolites with Reproduction in Holstein Cows [PDF]

, 2008
Body condition score (BCS), energy content (EC), cumulative effective energy balance (CEEB), and blood serum concentrations of glucose, beta-hydroxybutyrate (BHBA), and nonesterified fatty acids ( NEFA) were measured throughout first lactation in 497 ...
A. Tsiaras, Banos, Banos, Berry, Brotherstone, Bruss, Butler, Clark, D. Zygoyiannis, de Vries, Dechow, Edmonson, Ferguson, Fox, G. Arsenos, G. Banos, G. Oikonomou, G.E. Valergakis, Gilmour, Hayhurst, Herdt, Holtenius, Lucy, Markusfeld, Moallem, Patton, Pryce, Pryce, Pryce, Rabiee, Reist, Reist, Stevenson, Suriyasathaporn, Veerkamp, Veerkamp, Wall, Walsh, Wathes, Westwood, Whitaker   +40 more
core   +1 more source

High reproduction rate versus sexual fidelity [PDF]

The European Physical Journal B, 1999
We introduce fidelity into the bit-string Penna model for biological ageing and study the advantage of this fidelity when it produces a higher survival probability of the offspring due to paternal care. We attribute a lower reproduction rate to the faithful males but a higher death probability to the offspring of non-faithful males that abandon the ...
Sousa, A. O., de Oliveira, S. Moss
openaire   +2 more sources

Effect of Animal Welfare on the Reproductive Performance of Extensive Pasture-Based Beef Cows in New Zealand

Veterinary Sciences, 2020
One key area where animal welfare may relate to productivity is through reproductive performance. This study assesses welfare on 25 extensively managed pastoral New Zealand beef farms, and explores the relationship between welfare and reproductive ...
Yolande Baby Kaurivi, Richard Laven, Tim Parkinson, Rebecca Hickson, Kevin Stafford   +4 more
doaj   +1 more source

Spontaneous pregnancy rates after reproductive surgery [PDF]

Reproductive BioMedicine Online, 2017
With the development of IVF procedures, the role of reproductive surgery in the management of infertile couples has been questioned. Pregnancy rates (PR) after IVF procedures are well known, but recent data on spontaneous PR after reproductive surgery are scarce. This study aimed to prospectively evaluate how often fertility is restored by reproductive
Helena, Ban Frangez, Sara, Korošec, Barbara, Pozlep, Nina, Jancar, Vesna, Salamun, Andrej, Vogler, Tanja, Burnik Papler, Tea Terezija, Cvetko, Eda, Vrtacnik Bokal   +8 more
openaire   +2 more sources

Reproductive Longevity Predicts Mutation Rates in Primates [PDF]

Current Biology, 2018
AbstractMutation rates vary between species across several orders of magnitude, with larger organisms having the highest per-generation mutation rates. Hypotheses for this pattern typically invoke physiological or population-genetic constraints imposed on the molecular machinery preventing mutations1.
Thomas, Gregg W.C., Wang, Richard J., Puri, Arthi, Harris, R. Alan, Raveendran, Muthuswamy, Hughes, Daniel, Murali, Shwetha, Williams, Lawrence, Doddapaneni, Harsha, Muzny, Donna, Gibbs, Richard, Abee, Christian, Galinski, Mary R., Worley, Kim C., Rogers, Jeffrey, Radivojac, Predrag, Hahn, Matthew W.   +16 more
openaire   +2 more sources

Effect of competitive cues on reproductive morphology and behavioral plasticity in male fruitflies [PDF]

, 2015
Phenotypic plasticity will be favored whenever there are significant fitness benefits of responding to environmental variation. The extent and nature of the plasticity that evolves depends on the rate of environmental fluctuations and the capacity to ...
Bretman, Amanda, Chapman, Tracey, Fricke, Claudia, Westmancoat, James   +3 more
core   +3 more sources