This website uses cookies to ensure you have the best experience. Learn more

Antioxidant Properties Of Leafy And Non Leafy Vegetables

6480 words - 26 pages

VISIT HYPERLINK "" for more agribusiness articles and documents
ANTIOXIDANT PROPERTIES OF LEAFY AND NON-LEAFY VEGETABLESBYAKINWEMOYE, AKINBOBOLA SOLOMON(APH/09/6139)ASEMINAR PAPERSUBMITTED AS PART OF THE REQUIREMENTS FOR THE COURSE TITLED,STUDENTS SEMINAR (APH 500)AT THEDEPARTMENT OF ANIMAL PRODUCTION AND HEALTH.SCHOOL OF AGRICULTURAL AND AGRICULTURAL THECHNOLOGY,THE FEDERAL UNVERSITY OF TECHNOLOGY,AKURE, ONDO STATE.MAY, 2013CHAPTER ONEINTRODUCTIONEnvironment is the combination of the conditions in which the organism lives excluding those arising from heredity. The interaction between broilers and the environment remains an important problem in poultry production. If the environment changes, broilers adapt in order to minimize the effect of changes in growth rate, feed efficiency and mortality rate. Today broilers are selected and managed with the aim of decreasing mortality rate by improving feed efficiency and body weight at market age, but this cannot be achieved if poultry experience problems of heat stress (Gereat et al., 1993).Housing for broiler production is provided to maintain well defined environmental conditions and that satisfies their microclimate needs for optimum production. Adequate housing and stocking density also showed great importance for broiler production. Excessive crowding and high temperatures during summer reduced feed intake, which automatically lead to reduced body weight and resulted in a higher mortality rate in broilers. The use of unsuitable genotypes in hot regions results in large economic losses due to decreased growth, reduced body weight gain and higher mortality (Yalcini et al., 1997).Heat stress results from a negative balance between the net amount of energy flowing from the animal's body to its surrounding environment and the amount of heat energy produced by the animal. This imbalance may be caused by variations of a combination of environmental factors (e.g. sunlight, thermal irradiation, and air temperature, humidity and movement), and characteristics of the animal (e.g. species, metabolism rate, and thermoregulatory mechanisms). Environmental stressors, such as heat stress, are particularly detrimental to livestock production (Nienaber et al., 2007). The issue of environmental stress has quickly become a great point of interest in livestock production, particularly due to public awareness and concerns. The importance of animal responses to environmental challenges applies to all species. However, poultry seems to be particularly sensitive to temperature-associated environmental challenges, especially heat stress. It has been suggested that modern poultry genotypes produce more body heat, due to their greater metabolic activity (Settar et al., 1999). Understanding and controlling environmental conditions is crucial to successful poultry production and welfare.In meeting the goal of every poultry farmer which is profit maximization through...


Comparison of the mechanical properties of fresh and cryopreserved aortas

709 words - 3 pages samples were collected and tested shortly after postmortem, the fresh-tissue samples were dead and their mechanical properties could be different in comparison to live tissue samples in the body. Moreover, the sharpness and thickness of blades, the blades' angles and the type of lubrication affect the fracture toughness values. In order to make the sharpness of blades steady-state, the blades used in the experiments were preconditioned by passing

Functional properties and potential usage of essential oil

747 words - 3 pages Untitled D) Describe functional properties and potential usage of essential oil Essential oils are created by distilling and pressing plant materials to produce concentrated oil that retains the aroma and characteristics of the original plant. They are also known as volatile or ethereal oils. Most essential oils are clear, but some oils such as patchouli, orange and lemongrass are amber or yellow in color. They provide nutrition

The properties and biological importance's of water to living organisms

1489 words - 6 pages Water is a simple molecule, yet it is fundamental to life. In active living cells, two-thirds, or often more, of the area is occupied by water, and two-thirds of the globe is covered in water. Water is therefore extremely abundant, and in biological terms it has great importance both inside cells, and externally, for example as a habitat The simple molecule of H2O has many interesting physical and chemical properties which contribute to its

Iron- about its elemental properties and history of the metal

814 words - 3 pages to make clouds rain in drought zones. These missiles are still experimental though. Iron is one of three of the only elements to have magnetic properties, iron cobalt and nickel. Out of these three, iron has the most stable nuclei and is therefore the most common ingredient in magnets. The Titanic, Carpathia, Britannica, were all made out of iron and so are ships today. Iron is not without its drawbacks however, when exposed with moist air or when it is at high temperatures is rapidly rusts and corrodes. Iron is definitely one of the best and most durable metals and earth and our solar system.

The Properties of Heat Transfer: Chang and Guo

781 words - 4 pages to the heat transfer enhancement. Chang and Guo (2012) investigated the properties of heat transfer over developing and developed flow regimes, the pressure drop coefficients and the thermal performance factors (TPF) of tubular flows with the continuous and spiky twist tapes enhanced by perforated, jagged and notched winglets. It is founded that among of the type of twisted tape that have been investigated in the study, the V-notched spiky

Metals, Minerals & Gemstones: Types of bonding and their properties

735 words - 3 pages other covalent molecular structures are soluble in water.Polar Covalent BondsWhen atoms in a molecule are the same, the bonding electrons are shared equally and the bond is non-polar. When two different atoms are joined by a covalent bond and electrons are shared unequally the bond is a polar covalent bond. The atom with a stronger electron attraction in a polar bond acquires a slightly negative charge. The presence of a polar bond in a molecule

Challenges and Drawbacks of Non Traditional Students

3079 words - 12 pages PAGE Running Head: DEVELOPING EARLY LITERACYChallenges and Drawbacks of Non Traditional StudentsChallenges and Drawbacks of Non Traditional StudentsIntroductionThere has been a large growth in non-traditional student higher education enrollment in general over the past 25 years. By the term non-traditional, most researchers refer to a variety of demographic and social characteristics to distinguish this population from the more traditional

Principles of beneficence and non-maleficence

758 words - 3 pages , diagnosis, and treatment of disease, injury and other physical and mental impairments.Tort : A civil wrong committed against a person or property, excluding breach of contract.Beneficence and Non-maleficenceAs the principles of beneficence and non-maleficence are closely related, they are discussed together in this section. Beneficence involves balancing the benefits of treatment against the risks and costs involved, whereas non-maleficence

Characteristics of Human and Non-Human Primates

777 words - 3 pages is by their teeth, snouts, eyes, ears, arms, legs, fingers, and their toes. One of the main things that categorizes a human has a primate is selective pressure, the second main thing is having similar features and characteristics. But both humans and non-humans have differences even though they are both primates. The selective pressure is a big part of what makes a human a primate. Selective pressure means that a human or non-human primate

Radium. This essay describes, gives a history of, and gives properties of the element radium

910 words - 4 pages chemical properties. In 1902, after refining several tons of pitchblende from North Bohemia, one-tenth of a gram of radium chloride was produced. In 1911, Mme Curie and André-Louis Debierne isolated the element itself through the electrolysis of a pure radium chloride solution by using a mercury cathode and distilling it in an atmosphere of hydrogen gas. The decay products of radium were historically known as radium A, B, C, etc. Today we

The properties of glass explained by the bonding of Silicon and Oxygen

556 words - 2 pages The properties of glass lie within the bonding structure of silicon. Silicon cannot form strong ð bonds with oxygen by using its valency 3p orbitals. This is because of the large nuclear radius of the silicon atom and its orbitals which results in a less effective overlap with the smaller oxygen orbitals. The silicon atoms then form four single bonds to satisfy the octet rule. Therefore, instead of forming a SiO2 covalent molecule, it will form

Similar Essays

The Importance Of Storage In Fresh Fruit And Vegetables Logistics

2116 words - 9 pages Introduction The fresh fruit and vegetable is important and remarkable point in supply chain. The fresh fruit and vegetable supply chain is characterized by many national and international small and medium-sized enterprises at the production stage. And also the consumer demand for fresh fruits and vegetables all over the year is a special challenge of this chain and this chain strongly impacts all of the particularities. Therefore, the

The Role Of Essential Amino Acids, Micronutrients And Antioxidant Status In Alcoholic And Tropical Chronic Pancreatitis

742 words - 3 pages This investigation was undertaken to examine the role of essential amino acids, micronutrients and antioxidant status in alcoholic and tropical chronic pancreatitis and to compare with healthy controls. A further goal is to estimate serum rhodanese, thiocyanate and urinary inorganic sulfate/cratinine ratio as a measure of detoxification of cyanogens. Chronic pancreatitis is an inflammatory disease associated with irreversible exocrine

The Materials, Properties, And Theory Of Superconductivity

1505 words - 6 pages The purpose of this paper is to examine the materials, properties, and theory of superconductivity, a quantum phenomenon that occurs when a material is brought below a critical temperature and will conduct electricity without any resistance, the nearest model in nature to perpetual motion. According to Ecks (1990), Once current is applied to a superconducting material the current will continue in a closed lope without ever losing intensity

Mechanical Properties Of Ceramics And Glass

2182 words - 9 pages shown, there are only a few main ingredients in creating glass. Some other additives that are used are: lead, boron, lanthanum oxide, iron, and some color additives. Lead is used to make crystal glasses, which makes the glass more reflective and give off the image of more ‘sparkle’. This type of glass tends to be cut into decorative patterns and shapes. Boron is used to strengthen the thermal and electrical properties of the glass to withstand