In 'Big Ecology,' David C. Coleman documents his historically fruitful ecological collaborations in the early years of studying large ecosystems in the United States. As Coleman explains, the concept of the ecosystem--a local biological community and its interactions with its environment--has given rise to many institutions and research programs, like the National Science Foundation's program for Long Term Ecological Research. Coleman's insider account of this important and fascinating trend toward big science takes us from the paradigm of collaborative interdisciplinary research, starting with the International Geophysical Year (IGY) of 1957, through the International Biological Program (IBP) of the late 1960s and early 1970s, to the Long-Term Ecological Research (LTER) programs of the 1980s.
Erscheinungsdatum: 09.09.2017, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: IgY Administrada en Nanocompuestos, Aplicada a la sanidad Porcina, Titelzusatz: Estrategias de prevención de diarreas neonatales en cerdos, Autor: Alustiza, Fabrisio Eduardo // Bellingeri, Romina // Picco, Natalia, Verlag: EAE, Sprache: Spanisch, Rubrik: Tiermedizin, Seiten: 156, Informationen: Paperback, Gewicht: 249 gr, Verkäufer: averdo
Novel Food Ingredients: Egg-Yolk-IgY Powder for Diarrhea Treatments ab 59.99 € als Taschenbuch: . Aus dem Bereich: Bücher, Taschenbücher, Naturwissenschaft,
To help salve the sting of orbiting Sputniks, the United States needed a dramatic demonstration of technological prowess; early in 1958, the White House ordered a top secret under-ice transit of the Arctic Ocean--Pacific to Atlantic--via the North Pole. And that spring, the Office of Naval Research initiated a unique project: to assess whether non-rigid airships (blimps) could support field parties deployed in the Arctic. This book recounts two successful missions. In August, the nuclear submarine Nautilus (SSN 571) reached 90 North and, continuing under ice, logged the first deep-ocean transit of the basin. En route to rendezvous with an IGY drifting station on T-3, an ice island, U.S. Navy airship BUNO 126719 became the sole military airship to cross the Arctic Circle. This work is based on first-hand accounts, including journal excerpts from Dr. Waldo Lyon a force behind U.S. under-ice submarine development
The research was aimed to study the potential of probiotic lactic acid bacteria as suitable alternatives to antibiotics in broilers. This was design to find a possible replacement to antibiotics in broiler production. The study was carried out at the Department of microbiology, faculty of sciences Kaduna State University, Kaduna between January to May 2018. A total of ten raw milk samples were screened for the isolation of Lactic Acid Bacteria and 20 day-old broiler chicks (initial body weight 41 ± 0.5 g) were administered probiotics containing Lactobacillus fermentum, Lactobacillus plantenrun and Weissalla ciberia in water at 108 cells/milliliters/isolates/birds/day at day 6, 7, 8, 21, 22, and 23 of ages. Body Weight (BW), Weight Gain (WG) and Feed Intake (FI) were measured weekly just as feed conversion ratio was calculated and mortality recorded throughout the duration of the experiment. Blood glucose concentration, total protein, lipid profiles and Total immunoglobulins (IgY) were determined from blood sample at the ages of 14 and 42 days. Carcass quality and proximate analysis were evaluated from the meat of the broiler at the age of 42 days.
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Antibodies are the functional unit of humoral immunity. They are secreted by plasma cells, a type of B lymphocyte. When on the surface of a B cell, these molecules are immunoglobulins, following secretion they are termed as antibodies. Antibodies are found in bodily fluids and tissue spaces and are most effective in eliminating extracellular pathogens. As compared to mammalian antibodies, IgY offers various advantages for the targeted extraction of antibodies and their application in bioanalysis. Since the antibodies are extracted from the yolks of laid eggs, the method of antibody production is non-invasive. Thus, no blood must be taken from the animals for the extraction of blood serum. Because of its economic importance most research on immunity implied in the reactivity of the body were performed on domestic birds. Direct consequence of this research is the understanding of fundamental and applied concepts of immunity in birds. Comparing to the mammalian, avian immune system appears insignificant. However, it currently provides important information regarding the fundamental immunological mechanisms. It also provided a significant number of firsts, especially in vaccinology.
Chicken Egg Yolk Antibodies Production and Application ab 99.99 EURO IgY-Technology. Auflage 2001
The protocol developed for IgY purificationindicated approximately 74% recovery rate and 80%purity, while that of ovotransferrin appeared to bearound 93% recovery rate and 80% purity. Theseprotocols seem to be economical and practical for alarge-scale purification of IgY and ovotransferrinfrom chicken egg because ethanol and resin used inthe protocols can be regenerated as well as they aresimple and rapid methods. The combination of 100 mM-NaHCO3 to ovotransferrin was found to bebacteriostatic against E. coli O157:H7 and L.monocytogenes in BHI broth. Also ovotransferrinsolution added with 0.5% citric acid or Zn-boundovotransferrin inhibited the growth E. coli O157:H7and L. monocytogenes in BHI broth respectively.Also, EDTA and lysozyme promoted antibacterialactivity of ovotransferrin solution combined with100 mM-NaHCO3 against E. coli O157:H7 andL.monocytogenes respectively. Based on theseresults, this study claims that ovotransferrincombined citric acid, NaHCO3, and EDTA or lysozymeseemed to be useful antibacterial agents forcontrolling E. coli O157:H7 and L. monocytogenes.
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