نتایج جستجو برای: superior progeny

تعداد نتایج: 156234  

2013
Erin E. Carney Huyen Tran Justin W. Bundy Roman Moreno Philip S. Miller Thomas E. Burkey Phillip S. Miller

Growth performance in the nursery may be affected by dam parity. 1 Summary The growth performance of weaned pigs derived from different parities has not been previously evaluated; however, unpublished and anecdotal observations suggest that progeny derived from fi rst parity (P1) dams have reduced health status and growth performance compared to progeny derived from mature sows (≥ P2). The obje...

The management of irreparable rotator cuff tears remains challenging. Since its introduction by Mihata in 2012, superiorcapsule reconstruction (SCR) has grown in popularity at an astonishingly rapid rate. The aim of this article is to providea comprehensive review of the available literature, in order to highlight what has so far been published on SCR,covering all aspects including biomechanica...

Journal: :Evolution; international journal of organic evolution 2011
Robert M Cox M Catherine Duryea Michael Najarro Ryan Calsbeek

Sex-allocation theory predicts that females in good condition should preferentially produce offspring of the sex that benefits the most from an increase in maternal investment. However, it is generally assumed that the condition of the sire has little effect on progeny sex ratio, particularly in species that lack parental care. We used a controlled breeding experiment and molecular paternity an...

Journal: :Environmental entomology 2009
Christopher J Geden Roger D Moon

Attack rates, progeny production, sex ratios, and host utilization efficiency of Muscidifurax raptorellus (Kogan and Legner) (Hymenoptera: Pteromalidae), Tachinaephagus zealandicus Ashmead (Hymenoptera: Encyrtidae), and Trichopria nigra (Nees) (Hymenoptera: Diapriidae) were evaluated in laboratory bioassays with five dipteran hosts: house fly (Musca domestica L.), stable fly (Stomoxys calcitran...

2015
Hongzhou An Mei Hu Pengfei Li Guangdong Geng Qingqin Zhang Suqin Zhang

The meiotic behavior of pollen mother cells (PMCs) of the F2 and F3 progeny from Triticum timopheevii × hexaploid wild oat was investigated by cytological analysis and sequential C-banding-genomic in situ hybridization (GISH) in the present study. A cytological analysis showed that the chromosome numbers of the F2 and F3 progeny ranged from 28 to 41. A large number of univalents, lagging chromo...

Journal: :Journal of dairy science 1992
G R Wiggans P M VanRaden R L Powell

Canadian and US genetic evaluations for July 1991 were combined for 3304 Holstein bulls evaluated in Canada that had US progeny or a cross-reference code. Canadian evaluations of the bulls and their sires and dams were converted to US PTA. Combined PTA were weighted averages of progeny information from both countries and parent average. Parent average was recomputed from the sire's combined eva...

Journal: :Journal of Dairy Science 1964

Journal: :Stochastic Models 2022

We introduce a class of branching processes in which the reproduction or lifetime distribution at given time depends on total cumulative number individuals who have been born population until that time. focus continuous-time version these processes, called total-progeny-dependent birth-and-death and study some their properties through analysis deterministic (fluid) approximation. These include ...

2016
Michael Gonda

IMPLICATIONS Genomic predictions for commercial cattle can be used to select replacement heifers, design mating strategies, and market calves. Presently, two companies (Igenity and Zoetis) offer genomic tests for commercial cattle. Like expected progeny differences (EPDs) on young bulls, these genomic tests do not perfectly predict genetic merit. However, these tests will be useful for identify...

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