THE INTERACTION OF COW SIZE WITH GROWTH POTENTIAL OF THE SERVICE SIRE

1988 ◽  
Vol 68 (1) ◽  
pp. 129-137 ◽  
Author(s):  
C. A. DINKEL
Keyword(s):  
Linear Regression ◽  
Beef Cattle ◽  
Milk Production ◽  
High Growth ◽  
Growth Potential ◽  
Size Group ◽  
Weaning Weight ◽  
Sire Group ◽  
Quadratic Effects ◽  
High Growth Potential

Weaning weight and individual feed records for 343 calves produced by 84 cows during an 8-yr period were utilized to evaluate the effects of high- and low-growth-potential sires on the efficiency of large and small cows. Cow efficiency was expressed as a ratio of cows' and calves' TDN consumption for a year divided by the weaning weight of the calf. The design allowed the mating of small and large cows of each of four breed groups to unrelated low- and high-growth-potential bulls. The effects of cow size on cow efficiency were further evaluated by omitting cow size group and the interaction of cow size with sire group from the model and replacing them with the linear and quadratic effects of cow weight and subclass regressions of efficiency on cow weight within sire groups. Results indicated no interaction of cow size with growth potential of the bull, and no effect of cow size group but a significant effect of growth potential of the bull. The inclusion of milk production as a dependent variable indicated that cows produced 0.6–0.8 kg d−1 more milk when bred to the high-growth-potential bull group. None of the quadratic or linear regression coeficients were significant but the subclass regression of cow efficiency on cow weight within the high-growth-potential bull was significantly different from zero and from the coefficient for low-growth-potential bulls. These effects were in the direction which agrees with the concept of complementarity but their values were rather small. Further experimental evaluation of this kind with greater range in weight of sire and dam would be desirable. Key words: Cow efficiency, complementarity, beef cattle

scholarly journals The condition of forest stands on afforested agricultural land in the Orlické hory Mts

2017 ◽  
Vol 63 (No. 1) ◽  
pp. 1-8 ◽  
Author(s):  
Cukor Jan ◽  
Baláš Martin ◽  
Kupka Ivo ◽  
Tužinský Marek
Keyword(s):  
Agricultural Land ◽  
High Growth ◽  
Dry Mass ◽  
Growth Potential ◽  
Forest Stands ◽  
Tree Biomass ◽  
Humus Layer ◽  
The Status ◽  
Spruce Stands ◽  
High Growth Potential

The paper presents an evaluation of the growth of newly established forest stands on former agricultural land and furthermore describes the state of the upper part of the soils in these stands in comparison with neighbouring grassland in the Orlické hory Mountains. The new Norway spruce stands show an extremely high growth potential, usually significantly higher in comparison with areas forested for more generations/rotations. The formation of the surface humus layer also showed fast progress, the amount of dry mass of soil organic matter reaching values almost typical of permanently forested sites. The soils of newly afforested lands tend to resemble the status of forest soil – there was observed a process of acidification and nutrient depletion, probably connected with accumulation of the tree biomass.

High growth potential and nitrogen removal performance of marine anammox bacteria in shrimp-aquaculture sediment

Chemosphere ◽  
2018 ◽  
Vol 196 ◽  
pp. 69-77 ◽  
Author(s):  
Luong Van Duc ◽  
Bongkeun Song ◽  
Hiroaki Ito ◽  
Takehide Hama ◽  
Masashi Otani ◽  
...  
Keyword(s):  
Nitrogen Removal ◽  
High Growth ◽  
Growth Potential ◽  
Shrimp Aquaculture ◽  
Anammox Bacteria ◽  
High Growth Potential

A Long-Term Culture of Human Hepatocytes Which Show a High Growth Potential and Express Their Differentiated Phenotypes

1999 ◽  
Vol 256 (1) ◽  
pp. 184-191 ◽  
Author(s):  
Hiroshi Hino ◽  
Chise Tateno ◽  
Hajime Sato ◽  
Chihiro Yamasaki ◽  
Shigeru Katayama ◽  
...  
Keyword(s):  
High Growth ◽  
Human Hepatocytes ◽  
Growth Potential ◽  
Long Term Culture ◽  
High Growth Potential

An analysis of growth of different cattle genotypes reared in different environments

1984 ◽  
Vol 103 (1) ◽  
pp. 137-153 ◽  
Author(s):  
J. E. Frisch ◽  
T. E. Vercoe
Keyword(s):  
Growth Rate ◽  
Growth Rates ◽  
High Growth ◽  
Environmental Stresses ◽  
Growth Potential ◽  
Gastrointestinal Helminths ◽  
Treatment Groups ◽  
Survival And Growth ◽  
Different Levels ◽  
High Growth Potential

SummaryCalves from three breeds, Brahman, Hereford × Shorthorn (HS) and Brahman × HS (BX), were divided equally into two groups, one of which was treated every 3 weeks from birth onwards to control ticks and gastrointestinal helminths, and one of which was untreated. Mortalities, growth rates and levels of resistance to environmental stresses that affected both mortality and growth under grazing conditions were recorded for all animals up to weaning (6 months) and for all males up to 15 months of age. The Brahmans were the most and the HS were the least resistant to environmental stresses, each of which was shown to depress growth in proportion to its magnitude and to contribute to the high mortalities of the HS. All breeds responded positively to parasite control with the greatest response in both survival and growth in the HS breed and the least response in the Brahman breed.Samples of males from the various breed-treatment groups were taken into pens where they were protected from environmental stresses and fed both low-quality pasture hay and high-quality lucerne hay ad libitum. Measurements were made of fasting metabolism, maintenance requirement, voluntary food intake and gain, variables related to the growth potential of each animal. The HS animals had the highest whilst the Brahmans had the lowest values for each variable.However, despite their low growth potential, the Brahmans had the highest growtli rate, and the HS, despite their high growth potential, had the lowest growth rate, when growth was measured in the presence of all environmental stresses. When parasites were controlled, growth rates were highest for the BX, the breed with intermediate growtli potential, and did not differ between the HS and Brahmans. These interactions arose because of the different contributions of resistance to environmental stresses and growth potential to growth rate measured at the different levels of environmental stresses. The relevance of these interactions to breed evaluation and cross-breeding is considered.Growth potential and resistance to environmental stresses were negatively correlated both between and within breeds, though the latter was biased by the effects of compensation. The influence of these relationships on the likely outcome of selection for increased growth rate, both between and within breeds, is discussed.

scholarly journals Cyclical Fluctuations, Financial Shocks, and the Entry of Fast-Growing Entrepreneurial Startups

2020 ◽  
Author(s):  
Christoph Albert ◽  
Andrea Caggese
Keyword(s):  
Financial Crises ◽  
Employment Growth ◽  
High Growth ◽  
Growth Potential ◽  
Financial Shocks ◽  
Firm Level ◽  
Cyclical Fluctuations ◽  
Ex Post ◽  
Level Information ◽  
High Growth Potential

Abstract We analyze a multiyear, multicountry entrepreneurship survey with more than one million observations to identify startups with low and high growth potential. We confirm the validity of these ex ante measures with ex post firm-level information on employment growth. We find that negative aggregate financial shocks reduce all startup types, but their effect is significantly stronger for startups with high growth potential, especially when GDP growth is low. Our results uncover a new composition of entry channel that significantly reduces employment growth and is potentially important for explaining slow recoveries after financial crises.

scholarly journals Soldering Electronics to Smart Textiles by Pulsed Nd:YAG Laser

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2429
Author(s):  
Sebastian Micus ◽  
Michael Haupt ◽  
Götz T. Gresser
Keyword(s):  
Printed Circuit Boards ◽  
High Growth ◽  
Growth Potential ◽  
Circuit Boards ◽  
Smart Textiles ◽  
Peeling Test ◽  
Different Types ◽  
Laser Soldering ◽  
Conductive Textile ◽  
High Growth Potential

Experts attest the smart textiles market will have high growth potential during the next ten years. Laser soldering is considered to be a good contacting method because it is a contactless process. For this reason, it is intended to investigate the contacting process of printed circuit boards (PCB) to isolated conductive textile strips by means of a ytterbium-doped fiber laser (1064 nm). During the investigation, the copper strands in the textile tape were stripped by the laser and soldered to the PCB without any transport of the textile. Therefore, we investigated different sets of parameters by means of a design of experiment (DoE) for different types of solder pastes. Finally, the joinings were electrically analyzed using a contact resistance test, optically with a REM examination, and mechanically using a peeling test.

scholarly journals High growth potential and activity of 0.2 µm filterable bacteria habitually present in coastal seawater

2017 ◽  
Author(s):  
Yumiko Obayashi ◽  
Satoru Suzuki
Keyword(s):  
Marine Bacteria ◽  
Aquatic Ecosystems ◽  
Seawater Temperature ◽  
High Growth ◽  
Growth Potential ◽  
Aquatic Environments ◽  
Ambient Seawater ◽  
Coastal Seawater ◽  
Lower Temperature ◽  
High Growth Potential

Abstract. The presence of 0.2 µm filterable bacteria in aquatic environments has been known. Some of these bacteria have been reported to be starvation forms, especially those in oligotrophic oceanic seawater. However, 0.2 µm filterable bacteria have not yet been described in temperate coastal seawater. Here, we report the presence of 0.2 µm filterable bacteria in coastal seawater with their high growth potential that appeared under the absence of grazers. In this study, filtered seawater (FSW) microcosms were prepared with 0.2 µm filtered coastal seawater collected in summer and winter without any nutritional amendment and incubated at the ambient seawater temperature (25 °C in summer, 12 °C in winter) and lower temperature (6 °C). During the first several days of the incubations of FSW, the number of prokaryotes collected on 0.2 µm filters markedly increased especially at the ambient seawater temperatures. The diversity of the regenerated bacteria community was comparable to that of the original bacterial community, and most of the identified bacteria were typical marine bacteria (members of Alphaproteobacteria, Gammaproteobacteria and Bacteroidetes), indicating that the 0.2 µm filterable forms of typical marine bacteria show rapid growth under the no grazing and low competition conditions present in the FSW bottles. These results suggest that 0.2 µm filterable bacteria are habitually present even in coastal water, and that these bacteria are always ready for growing in changeable aquatic ecosystems.

Distribution of secondary root growth potential in the root system of Pisum sativum

1970 ◽  
Vol 48 (4) ◽  
pp. 699-704 ◽  
Author(s):  
J. S. Yorke ◽  
G. R. Sagar
Keyword(s):  
Root System ◽  
Primary Root ◽  
High Growth ◽  
Growth Potential ◽  
Root Initiation ◽  
Root Growth Potential ◽  
Secondary Root ◽  
Vertical Glass ◽  
High Growth Potential ◽  
Secondary Roots

Development of the root system of peas grown on filter paper between vertical glass sheets was studied during the period 6 to 20 days after germination. Elongation of each whole root system proceeded at alternate high and low rates. At the end of each period of low growth rate, a higher order of roots emerged. Secondary roots tended to occur in clumps. Secondary roots with the greatest growth potential occurred midway within that region of the primary root from which secondary roots emerged, and also, but less markedly, at the positions of clumps. The timing and duration of elongation of roots with high growth potential differed from that of roots with lower growth.Growth potential of secondary root appears to be partly determined at the time of root initiation. Such a process would precondition a seedling to a particular environment.

scholarly journals University Spin-Offs: A New Framework Integrating Enablers, Stakeholders and Results

2019 ◽  
Vol 16 (02) ◽  
pp. 1950020
Author(s):  
Michael Sheriff ◽  
Moreno Muffatto
Keyword(s):  
High Growth ◽  
Growth Potential ◽  
Entrepreneurial Ventures ◽  
Independent Variables ◽  
National University ◽  
The Creation ◽  
Entrepreneurship Ecosystems ◽  
Property Regimes ◽  
High Growth Potential ◽  
New Framework

University spin-offs with patents (USOPs) are entrepreneurial ventures created by exploiting research results and inventions. USOPs are characterized with a high growth potential and are capable of attracting external investments. To explore the challenges apparent in the creation of USOPs, we reviewed the existing framework to identify key missing elements. Our study proposes a new framework that incorporates Key elements that enhance the creation of USOPs. The new framework focused on the interactions of elements such as national intellectual property regimes, national university assessments, the local entrepreneurship ecosystems where the universities are located, the entrepreneurial orientations and strategies of universities, and stakeholders as independent variables with USOPs as the dependent variable. There is therefore a need for a critical reflection on national and university policies and strategies to enhance the creation of USOPs.

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