Biomaterial Database

Effects of short term cold exposure on the digestion of milk replacer by young preruminant calves. 1982

P E Williams, and G M Innes

Two groups, totalling 29, of 24-day-old Friesian bull calves were offered 0.6 kg milk replacer reconstituted in 2.5 litres warm water once daily and were housed for a period of 14 days at a temperature of either 3 +/- 2 degrees C (cold) or 18 +/0 0.5 degrees C (warm). Mean daily liveweight gains of the groups exposed to cold or warmth were 0.26 and 0.36 +/- 0.04 kg per day respectively (P less than 0.05). Apparent digestibility coefficients of dry matter, nitrogen and fat of the milk replacer were not affected by exposure of the calves to cold and were 0.95 +/- 0.01, 0.92 +/- 0.01 and 0.77 +/- 0.02 respectively for both groups. Water intake and urine volume were significantly (P less than 0.05) reduced by 1.77 and 0.56 litres per day respectively whereas faecal water excretion was increased ty 0.06 litres per day in the cold exposed calves. Over the 10-day period the warm exposed calves were estimated to make a net water retention while there was a net loss of 0.35 litres per day for the group exposed to cold.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011188	Potassium	An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
D001835	Body Weight	The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	Body Weights,Weight, Body,Weights, Body
D002417	Cattle	Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.	Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D003080	Cold Temperature	An absence of warmth or heat or a temperature notably below an accustomed norm.	Cold,Cold Temperatures,Temperature, Cold,Temperatures, Cold
D004041	Dietary Fats	Fats present in food, especially in animal products such as meat, meat products, butter, ghee. They are present in lower amounts in nuts, seeds, and avocados.	Fats, Dietary,Dietary Fat,Fat, Dietary
D004044	Dietary Proteins	Proteins obtained from foods. They are the main source of the ESSENTIAL AMINO ACIDS.	Proteins, Dietary,Dietary Protein,Protein, Dietary
D004063	Digestion	The process of breakdown of food for metabolism and use by the body.
D005243	Feces	Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
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