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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 264 for “"angus"”.
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Heterosis in Simmental-Angus rotational cross calves
Call number: LD2668 .T4 1985 K74
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Heterosis in Simmental-Angus rotational cross calves
Call number: LD2668 .T4 1985 K74
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Studies of grazing and nursing behavior in Angus crossbred cattle
… in two years. Sires of the Polled Hereford x Angus cows had been selected for above (+) or below (-) average expected progeny difference for yearling weight and maternal weaning weight. Calves were sired by Angus bulls of United States (US) or New Zealand (NZ) origin. Observations from dawn to …
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COMMUNITY STRUCTURES OF GUT MICROBIOME UNDER DIFFERENT DIETS IN ANGUS BEEF CATTLE
The microbiota of animals’ digestive tract plays important roles in health, nutrient utilization, and performance. For ruminants, the digestive tract, including rumen and other gastro-intestinal regions, hosts a unique and diverse microbiome that aids feed fermentation, digestion, and absorption. …
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The Influence of Angus Snead Macdonald and The Snead Bookstack on Libraryarchitecture
Made available in DSpace on 2015-05-12T21:44:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7000787.PDF: 13569395 bytes, checksum: 98ce8b8226bbb94304a11e45a9a04b30 (MD5) Previous issue date: 1969
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The petrogenesis and geochemistry of the dioritic complexes south of Balmoral forest, Angus
… at the northern end of Glen Clova, in the Angus district of Tayside, Scotland. The Glen Doll Complex (12 km squared) constitutes a wide range of rock types from olivine gabbro, through diorite to adamellite. The bulk (> 80%) of the succession consists of heterogeneous hornblende- and …
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The use of carcass traits as indicators of heifer pregnancy in Angus cattle
… composition traits. In this study, 124 purebred Angus heifers from the Iowa State University McNay Memorial Research and Demonstration Farm were evaluated during development from weaning until final pregnancy determination. One week after weaning, heifers were randomly allocated to two treatment …
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Testing purebred and commercial combined selection in Angus: Tri-County Steer Carcass Futurity
… rib (CREA). Purebred data from the American Angus Association (AAA) included records of 139,602 bulls, 130,944 heifers and 6,656 steers for weaning weight (WW); 85,702 bulls, 76,603 heifers and 1,908 steers for yearling weight (YW); and 62,752 bulls and 45,958 heifers for ultrasound measures …
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Genomics of heifer pregnancy, days open, and days to conception in Red Angus heifers
… influencing HP, DC, and DC among 18,039 Red Angus heifers, find the genetic relationship among those traits, and creating the genomic predictions of days to conception and days open. The results show a small heritability of 0.119 to 0.131, 0.10 to 0.102, and 0.0749 to 0.112 for HP, DO, and …
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Genetic Heterogeneity of Residual Variance for Production and Functional Traits in American Angus Cattle
… foot angle (FA), and claw set (CS) in American Angus cattle; 2) to compare the results of different genetic heterogeneity models; 3) to evaluate the effectiveness of Box-Cox transformation in continuous traits; and 4) to address limitations and explore alternative solutions for implementing …
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Heritability and repeatability estimates of first service conception and first cycle calving in Angus cattle
… and repeatability for these traits in Angus cattle. Data used for this analysis was sourced from the Colorado State University Beef Improvement Center (1985 to 2018; CSU-BIC; N = 8,206) near Saratoga, Wyoming where an Angus cow herd is managed for research purposes. The data used …
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Evaluation of phenotypic and genetic trends in weaning weight in Angus and Hereford populations in Virginia
Total weaning weight records of 29,832 Angus and 15,765 Hereford calves born during 1953 through 1983 in Virginia were used to evaluate phenotypic and genetic trends for adjusted weaning weight (AWWT), weaning weight ratio (WWR) and deviation of AWWT from the mean AWWT of the contemporaries (DEVN). …
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Heritability estimates and genetic, phenotypic, and environmental correlations between weight, grade, and condition of Angus cows
… grades., and condition scores taken on 1371 Angus cows were used to evaluate the genetic and environmental nature of these traits. This sample of cows represented 365 sire groups. Four models were used in this study: 1. Model A - Cow weight and grade were considered dependent variables; herds …
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Effect of pulmonary arterial pressure and precipitation on reproductive performance in Angus heifers in south central Wyoming
… m elevation) near Saratoga, Wyoming where an Angus cow herd of 420 mother cows are managed for research purposes. Records included identification, birth year, yearling year, yearling weight (YW), PAP, first service conception (FSC), overall heifer pregnancy (HPG) and sire. Precipitation data …
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Desempenho de novilhas F1 Red Angus Nelore em diferentes planos nutricionais durante cria e recria a pasto
… foram avaliar o desempenho de novilhas F1 Red Angus × Nelore em diferentes planos nutricionais durante a cria e recria. Foram utilizadas 34 bezerras com 127 dias de vida médios e peso médio de 153,90 kg distribuídas em fatorial 2x2. Na cria foram avaliados os tratamentos controle (mistura …
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Relationships among heifer traits, early-life productive traits, and lifetime productivity within Angus and Simmental female cattle
Data from 946 Angus and 351 Simmental females were used to quantify relationships between calfhood and early-life traits of females with fertility in the first two breeding seasons, and with calf production in the first, in three and in eleven years of life. These traits were used to develop …
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New Urbanism in the Greater Toronto Area: A case study of Angus Glen and Cornell in the town of Markham (Ontario).
… characteristics of two communities, Cornell and Angus Glen, which have been labeled New Urbanist in the Town of Markham. A series of design indicators were employed and tested to see whether these communities conformed very closely to the principles of New Urbanism on a collective basis, or only …
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Determining the added value of coproducts based adaptation diets and the heritability of variation in feed intake in Red Angus cattle
… consuming a common finishing diet. Simmental × Angus and Angus steers (N = 135; 256.3 ± 27.2 kg) were blocked by initial BW and allotted into 9 pens. Steers were fed a common receiving diet for the initial 12 days after weaning. Pens were then assigned to 1 of 3 dietary treatments for the 35 d …
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Estudio de la efectividad garrapaticida del compuesto Cypergan-15 en las razas Aberdeen Angus y Brahman en el departamento de Boaco, Nicaragua
… y 14 días después de la aplicación en las razas Angus y Brahrnan. Los resultados obtenidos en la prueba In Vitro demostraron que el producto posee efecto garrapaticida, alcanzando un 100% de control a concentraciones de 1.5 y 1.0 ml/lt de agua, al cabo de 3 y 24 hrs respectivamente. En el …
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Comparison of maternal performance of reciprocal crossbred cows
… of reciprocal two-breed cross cows between Angus, Herefords and Shorthorns was compared in 249 matings over a four year period. These cows were mated to bulls of the same three breeds to produce three-breed and baekcross calvea. Shorthorn x Angus cows (sire breed first) weaned l7.S~ fewer …
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