A5054308951- Genetic and phenotypic traits in livestock
- Ruminant Nutrition and Digestive Physiology
- Meat and Animal Product Quality
- Animal Nutrition and Physiology
- Animal Behavior and Welfare Studies
- Flowering Plant Growth and Cultivation
- Genetic Mapping and Diversity in Plants and Animals
- Island Studies and Pacific Affairs
- Bioenergy crop production and management
- Reproductive Physiology in Livestock
- Birth, Development, and Health
- Effects of Environmental Stressors on Livestock
- Pacific and Southeast Asian Studies
- Plant and animal studies
- Global Cancer Incidence and Screening
- Agriculture Sustainability and Environmental Impact
- Agronomic Practices and Intercropping Systems
- earthquake and tectonic studies
- Colorectal Cancer Screening and Detection
- Viral gastroenteritis research and epidemiology
- Plant tissue culture and regeneration
- Family Dynamics and Relationships
- Forest Insect Ecology and Management
- Global Maternal and Child Health
- Identification and Quantification in Food
AgResearch
2011-2024
North Central University
2014-2017
University of Minnesota
2008-2017
New Mexico State University
2015-2016
University of Minnesota, Waseca
2008-2016
West Virginia State University
2015
California State University, Northridge
2015
Pennsylvania State University
1988-2013
US Forest Service
2008
Pacific Northwest Research Station
2008
Summary The Gainj of highland Papua New Guinea do not use contraception but have a total fertility rate only 4·3 live births per woman, one the lowest ever recorded in natural setting. From an analysis cross-sectional demographic and endocrinological data, causes low reproductive output been identified women this population as: late menarche marriage, long interval between marriage first birth, high probability widowhood at later ages, effective fecundability prolonged lactational...
Summary The effects of infant suckling patterns on the post-partum resumption ovulation and birth-spacing are investigated among Gainj highland New Guinea. Based hormonal evidence, median duration lactational anovulation is 20·4 months, accounting for about 75% interval between live birth next successful conception (i.e. resulting in birth). Throughout lactation, episodes short frequent, changing slowly over time, from 24 minutes newborns to 80 3-year olds. Maternal serum prolactin...
Paul Bohannan (I960:24) commented that the only tenable position in present state of literature is suicide situation various primitive societies open to investigation, but has not been investigated. Twenty years later, a great deal changed. Many ethnographers have reported suicides preliterate societies, with some notable exceptions they approached as an essentially individual phenomenon.2 Little effort made examine part social system. This surprising for discipline professes be concerned...
ABSTRACT The Walkerton (Ontario, Canada) outbreak of waterborne Escherichia coli O157:H7 and Campylobacter jejuni was quite limited in both space time, making it a good model for exploring the utility different typing subtyping methods characterization relationships among isolates these organisms. We have extended previous work with organisms through analysis by Oxford multilocus sequence (MLST) flagellin short variable region (fla-SVR) sequencing methods. Additional not epidemiologically...
This work investigated effects of carrying 0, 1, or 2 copies the A allele resulting from g+6723G-A transition in growth differentiation factor gene (GDF8) New Zealand Texel-cross sheep at different lamb ages and carcass weights. Two sires 1 copy were mated to approximately 200 ewes allele. total 187 progeny generated genotyped determine whether they The assigned 4 slaughter groups balanced for 3 genotypes, sex, sire. slaughtered commercially when their average BW (across all group) reached...
There is simultaneous interest in improving the feed efficiency of ruminant livestock and reducing methane (CH 4 ) emissions. The relationship (genetic phenotypic) between (characterized as residual intake: RFI) greenhouse gases [methane carbon dioxide (CO 2 )] traits New Zealand (NZ) maternal sheep has not previously been investigated, nor their with detailed estimates body composition. To investigate these relationships NZ sheep, a intake facility was established at AgResearch Invermay,...
Seven thousand seismograms of small earthquakes in the Mammoth Lakes‐Bishop area were used to measure values Q from decay earthquake coda. These measurements compared between events that occurred before and after Round Valley (M=5.7). We found regions near main shock epicenter, coda −1 for higher than those prior shock. The opposite behavior was farther away shock, namely, lower before. Measurements Long caldera, outside immediate source region earthquake, surrounding areas but difference...
Genetic and phenotypic parameters were estimated for production disease traits (including dagginess) from about 2 million pedigree-recorded animals born between 1990 2008 in New Zealand dual-purpose ram breeding flocks. This is the most comprehensive study of genetic parameter estimates sheep industry to date includes that have not previously been reported. Estimates heritability moderate BW at 8 mo (LW8), fleece weight 12 (FW12), dagginess score 3 (DAG3, DAG8; 0.31 0.37), typical weaning...
Despite various direct transmethylation methods having been published and applied to analysis of meat fatty acid (FA) composition, there are still conflicting ideas about the best method for overcoming all difficulties posed by complex mixtures FA in meat. This study performed a systematic investigation factors affecting one-step quantitative acids freeze-dried animal tissue. Approximately 280 reactions, selected using factorial design, were investigate effect temperature, reaction time,...
Rumen microbes break down complex dietary carbohydrates into energy sources for the host and are increasingly shown to be a key aspect of animal performance. Host genotypes can combined with microbial DNA sequencing predict performance traits or related environmental impact, such as enteric methane emissions. Metagenome profiles were generated from 3139 rumen samples, collected 1200 dual purpose ewes, using restriction enzyme-reduced representation (RE-RRS). Phenotypes available (CH4) carbon...
Letter| August 01, 1986 A preliminary study of coda Q in California and Nevada W. H. K. Lee; Lee U.S. Geological Survey345 Middlefield RoadMS 77Menlo Park, 94025 Search for other works by this author on: GSW Google Scholar Aki; Aki Department Sciences University Southern CaliforniaLos Angeles, 90007 B. Chouet; Chouet P. Johnson; Johnson S. Marks; Marks J. T. Newberry; Newberry A. Ryall; Ryall Center Seismic Studies1300 North 17th StreetSuite 1450Arlington, Virginia 22209 Stewart; Stewart D....
ABSTRACT This study applies principles from the theory of household life cycles to early childhood mortality in population Northern Orkney Islands, Scotland. The primary hypothesis is that unfavorable economic conditions resulting changes demographic composition increase risk death for children under age 5 years because limited resources and intra‐household competition. We apply Cox proportional hazards models nearly 5,000 linked birth records Scotland, period 1855 2001. dependent variable...
A QTL affecting leg muscle and fat traits has been identified within the New Zealand Texel population. The maps to a region on OAR 2 with two-marker haplotype test established at markers BULGE20 BM81124. These encompass likely position of Growth Differentiation Factor 8 (GDF8). pleiotropic effects this meat quality are tested. Objective measures including pH, color (L*, a*, b*), tenderness (as assessed by Warner-Bratzler shear force measurements) were longissimus semi-membranosus muscles 540...
Servants were an important part of the northwestern European household economy in preindustrial past. This study examines household-level characteristics that are predictive presence rural servants using data from Orkney, Scotland. The number present a is related to composition, landholding size, and marital status head. In addition, sex particular servant hired reveals labor male female not fungible. ratio members working age, occupation head, size household's landholding.
Genetic and phenotypic parameters were estimated for dagginess, breech, wool, fiber traits from approximately 29,500 progeny born in 2009 2010 New Zealand dual-purpose ram breeding sheep flocks. Dagginess is adherence of fecal matter to the this study investigates genetic correlations between dagginess breech wool traits. Estimates heritability moderate (0.21 0.44) following traits: dag score at 3 8 mo (DAG3, DAG8), bareness, length, bulk (BULK), mean diameter, diameter SD, CV, curvature...
Animal production factors can affect the fatty acid and volatile profile of lamb meat. The composition M. longissimus thoracis was evaluated from 150 lambs 10 groups commercial that differed in age, sex, diet breed, three farms, which represent typical forage systems New Zealand. meat 4-month-old composite slaughtered at weaning had a similar polyunsaturated to saturated ratio compared 6- 8-month-old lambs, but greater than 12-month-old Merino (p < 0.05), with all ratios being lower...
The inclusion of eating quality traits in sheep genetic improvement programmes is desirable. Intramuscular fat (IMF) plays a key role ensuring consumer satisfaction when lamb, but progress for IMF constrained by lack routine data collection. This study investigated the potential predictor to substitute measured programmes. Carcass and predicted (near-infrared estimated marbling score) were available on 10,113 New Zealand lambs, 1678 which also had chemical slice M. longissimus lumborum...
Facial eczema is a major concern for New Zealand farmers due to its economic impact and animal welfare implications. The disease occurs when animals ingest sporidesmin, mycotoxin produced by spores of the fungus Pseudopithomyces chartarum. Spore production related weather conditions; thus incidence severity facial varies between years, with thedisease commonly occurring from late summer through autumn in North Island. We developed simple model estimate climatic suitability P. chartarum...
Abstract The research presented focuses on genetic variation in the Gainj‐ and Kalam‐speaking peoples of highland Papua New Guinea. primary data are typings at 51 loci observed 600 individuals who reside 21 census units, called parishes. These augmented by cultural demographic information that has also been collected. Parish sizes small, ranging from 20 to about 200 individuals. Direct Western contact with these people occuring only for past three decades. Although Westernization is...