Biomaterial Database

[Utilization of feed rations of varying protein content by growing pigs]. 1980

G Burlacu, and M Iliescu, and J Stavri

In a total of 134 experiments concerning the general metabolism of growing pigs in a live weight range of 10 to 30 kg the nutrient and energy retention were investigated under the conditions of ad libitum feeding and feeding on the maintenance level including two fasting days, providing four rations with different protein concentration (16 to 22%). N-utilisation was ascertained as 81.2 +/- 4.2% and N-maintenance requirement as 0.199 g N per kg live weight0.75. The utilisation level of metabolisable energy (ME) was independent of the protein level but dependent on the method of calculation. The utilisation value of 73.8 +/- 3.0% was calculated as the best adaptation to the balance experiments altogether. It corresponds to the energy maintenance requirement of 434 kJ ME/kg live weight0.75. The standards of the energy requirement of growing pigs in the live weight range of 10 to 50 kg are derived from this results and earlier experiments and put up for discussion.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009584	Nitrogen	An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
D009751	Nutritional Requirements	The amounts of various substances in food needed by an organism to sustain healthy life.	Dietary Requirements,Nutrition Requirements,Dietary Requirement,Nutrition Requirement,Nutritional Requirement,Requirement, Dietary,Requirement, Nutrition,Requirement, Nutritional,Requirements, Dietary,Requirements, Nutrition,Requirements, Nutritional
D004044	Dietary Proteins	Proteins obtained from foods. They are the main source of the ESSENTIAL AMINO ACIDS.	Proteins, Dietary,Dietary Protein,Protein, Dietary
D004734	Energy Metabolism	The chemical reactions involved in the production and utilization of various forms of energy in cells.	Bioenergetics,Energy Expenditure,Bioenergetic,Energy Expenditures,Energy Metabolisms,Expenditure, Energy,Expenditures, Energy,Metabolism, Energy,Metabolisms, Energy
D006128	Growth	Gradual increase in the number, the size, and the complexity of cells of an individual. Growth generally results in increase in ORGAN WEIGHT; BODY WEIGHT; and BODY HEIGHT.
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000821	Animal Feed	Foodstuff used especially for domestic and laboratory animals, or livestock.	Fodder,Animal Feeds,Feed, Animal,Feeds, Animal,Fodders
D013552	Swine	Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).	Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog