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A community in a cow pasture football at Penn State /Phillips, Benjamin Paul. January 2009 (has links)
Thesis (M.A.)--Bowling Green State University, 2009. / Document formatted into pages; contains vii, 101 p. Includes bibliographical references.
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A Community in a Cow Pasture: Football at Penn StatePhillips, Benjamin Paul 15 April 2009 (has links)
No description available.
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Desempenho e características de carcaça de bovinos Nelore com diferentes hábitos de consumo em confinamento / Performance and carcass traits of Nellore cattle with different intake habits in feedlotSilva, Sílvia Rodrigues Carneiro 29 August 2014 (has links)
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Previous issue date: 2014-08-29 / The finishing cattle in feedlots has increased in recent years and the feeding of animals is
responsible for 60-70% of the costs in this system. Cattle tend to select their food, even when
this is provided in the form of a total mixed ration. This selective behavior has shown changes
in milk production, but has been little studied in cattle. Thus, this study was designed to
identify selection by particle size by cattle and a possible influence on performance and
carcass beef cattle. We used 18 Nellore bulls, with 21 months old and average weight of 334
kg, confined for 127 days to reach slaughter weight of 500 kg and minimum subcutaneous fat
thickness of 4 mm. The diet was corn silage and concentrate in the ratio of 40:60 dry matter
basis. The diet was weighed and made up the evaluation of particle size by the method of
sieves of the Penn State Particle Size Separator, every four hours for 24 hours. From these
results, the animals were grouped according to the habit of selection by particle size using
cluster analysis into two stages: the Ward method to define the number of cluster; and kmeans
clustering method to classify animals into groups by Euclidean distance, where k = 3,
these being the three groups evaluated: Group 3 showed a preference for long (> 19 mm) and
medium particles (<19 mm> 8 mm), Group 1 showed no preference for distinction as the size
of particles throughout the day, but the proportion of fine particles (<1.18 mm - bottom of
sieve) decreased after 24h and Group 2 presented similarity throughout the day, with the
Group 1 or Group 3. There was no significant effect between groups for any carcass traits
(carcass yield, percentage industrial cuts, Loin Area, fat thickness and percentage of fat in
carcass). On feedlot performance, there were no differences in time spent on food, idling or
rumination, as well as the dry matter and NDF intake. However, weight gain and attributes of
efficiency (conversion and feed efficiency) showed significant effects at P <0.07 between
groups with statistical difference of P <0.007 for feed efficiency and P <0.0109 for feed
conversion between Groups 1 and 3 when compared alone. It was concluded that selection by
particle sizes does not imply changes in the performance of feedlot cattle diets with 40%
forage and fed twice a day. / A terminação de bovinos em confinamentos vem crescendo nos últimos anos e a alimentação
dos animais é responsável por 60 a 70% dos custos nesse sistema. Bovinos tendem a
selecionar sua alimentação, mesmo quando essa é fornecida na forma de ração total
misturada. Esse comportamento seletivo tem mostrado alterações na produção de leite, mas
tem sido pouco estudado em gado de corte. Assim, esse estudo foi elaborado visando
identificar a seleção por tamanho de partículas no cocho e uma possível influência no
desempenho e carcaça de bovinos de corte. Utilizou-se 18 animais inteiros, da raça Nelore,
com idade média de 21 meses e peso médio inicial de 334 kg, confinados por 127 dias até
atingirem peso de abate acima de 500 kg e espessura de gordura mínima de 4 mm. Tiveram
como alimento silagem de milho e concentrado na proporção de 40:60. A dieta dos animais
foi pesada e fez-se a avaliação do tamanho de partículas pelo método das peneiras da Penn
State Forage Particle Separator, a cada quatro horas durante 24h. A partir destes resultados,
os animais foram agrupados de acordo com o hábito de seleção por tamanho de partículas
utilizando a análise de Cluster em dois estágios: método de Ward para definir o número de
cluster; e método de k-médias para classificar os animais dentro dos grupos por meio da
distância Euclidiana, em que k = 3, sendo esses os três Grupos avaliados: o Grupo 3
apresentou preferência por partículas longas (> 19 mm) e médias (< 19 mm > 8 mm), o Grupo
1 não apresentou distinção quanto a preferência por tamanho de partículas ao longo do dia,
porém a proporção de partículas finas (< 1,18 mm - fundo de peneira) diminuiu após as 24h e
o Grupo 2 apresentou semelhança ao longo do dia, hora com o Grupo 1, hora com o Grupo 3.
A partir da formação dos Grupos, os dados de desempenho e carcaça foram comparados por
teste de médias. Não houve efeito significativo entre os Grupos para quaisquer características
de carcaça (rendimento, percentagem dos cortes dianteiro, ponta de agulha e traseiro, AOL,
espessura de gordura e proporção de gordura). No desempenho em confinamento, não houve
diferenças nos tempos gastos com alimentação, ócio ou ruminação, assim como no consumo
de matéria seca e de FDN. Entretanto, o ganho de peso e atributos de eficiência (conversão e
eficiência alimentar) apresentaram efeito significativo a P<0,07 entre os três grupos e com
diferença estatística de P<0,007 para eficiência alimenta e P<0,0109 para conversão alimentar
entre os Grupos 1 e 3, quando comparados isoladamente. Concluiu-se que a seleção no cocho
por diferentes tamanhos de partículas não implica em alterações no desempenho de bovinos
confinados em dietas com 40 % de volumoso e alimentados duas vezes ao dia.
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Varför oroar vi oss och vad oroar vi oss över? Skillnader mellan högoroare och lågoroare.Holmér, Karin January 2006 (has links)
<p>Oro är ett allmänmänskligt fenomen som kan vara både till nytta och skada för oss. Syftet med denna studie var att undersöka om det finns någon skillnad mellan högoroare respektive lågoroare vad gäller vilken funktion oron fyller (Worry Automatic Thought Questionnaire) och orosinnehåll (Student Worry Scale), undersöka eventuella könsskillnader samt jämföra ett mått på frekvens och intensitet i den allmänna oron (Penn State Worry Questionnaire) med ett allmänt ångestmått (Beck Anxiety Inventory). Undersökningsdeltagarna utgjordes av 40 psykologistudenter och 70 polisstudenter och könsfördelningen var jämn. Signifikant samband mellan totalpoäng på PSWQ och totalpoäng på BAI erhölls. Högoroare oroade sig signifikant mer av vidskepliga skäl, för att undvika eller förhindra något ont från att hända, i förberedande syfte, för att få motivation samt som distraktion från mer emotionella saker, jämfört med lågoroare. De oroade sig signifikant mer än lågoroare över akademiska krav, arbetet, personliga relationer och vad andra tycker om dem. Högoroande kvinnor oroade sig signifikant mer än högoroande män över hälsoaspekter och vad andra tycker om dem. Lågoroande kvinnor oroade sig signifikant mer än lågoroande män över akademiska krav. Avsaknaden av flera signifikanta könsskillnader tros delvis bero på för få undersökningsdeltagare.</p>
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Varför oroar vi oss och vad oroar vi oss över? Skillnader mellan högoroare och lågoroare.Holmér, Karin January 2006 (has links)
Oro är ett allmänmänskligt fenomen som kan vara både till nytta och skada för oss. Syftet med denna studie var att undersöka om det finns någon skillnad mellan högoroare respektive lågoroare vad gäller vilken funktion oron fyller (Worry Automatic Thought Questionnaire) och orosinnehåll (Student Worry Scale), undersöka eventuella könsskillnader samt jämföra ett mått på frekvens och intensitet i den allmänna oron (Penn State Worry Questionnaire) med ett allmänt ångestmått (Beck Anxiety Inventory). Undersökningsdeltagarna utgjordes av 40 psykologistudenter och 70 polisstudenter och könsfördelningen var jämn. Signifikant samband mellan totalpoäng på PSWQ och totalpoäng på BAI erhölls. Högoroare oroade sig signifikant mer av vidskepliga skäl, för att undvika eller förhindra något ont från att hända, i förberedande syfte, för att få motivation samt som distraktion från mer emotionella saker, jämfört med lågoroare. De oroade sig signifikant mer än lågoroare över akademiska krav, arbetet, personliga relationer och vad andra tycker om dem. Högoroande kvinnor oroade sig signifikant mer än högoroande män över hälsoaspekter och vad andra tycker om dem. Lågoroande kvinnor oroade sig signifikant mer än lågoroande män över akademiska krav. Avsaknaden av flera signifikanta könsskillnader tros delvis bero på för få undersökningsdeltagare.
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Vliv ročního období na kondici dojnic holštýnského plemene skotuMinaříková, Helena January 2015 (has links)
ABSTRACT This thesis contains solution of issue Effect of season to condition Holstein cattle breed in period from December 2013 to December 2014 in BONAGRO, a. s. in Šlapanice city in herd about 80 dairy cows in the first stage of lactation. Experiments were made periodically on the first week of month, overall twelve times per a year. Whole thesis is based on subjective evaluation of body condition of cows. I statistically demonstrated effect of season to condition of cows. I also showed that season affected feed factions. I subdued these factions to special sieve analysis (Penn State Separator). Furthermore, I found statistically conclusive effect of season to residual amount of washed excrements, which I subdued to primary analysis. Feed and excrement analysis place together with evaluation of body condition. At the same time, I measured temperature inside the stable and compared it with temperature in surroundings of Šlapanice. In the end, I made an analysis of milk in university laboratory, which were compared with results of control of heredity, regularly made on the farm. All results are shown in this thesis and are complemented by graphs, tables, analysis and photos.
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