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Showing 1 to 20 of 259 for “"feed intake"”.
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Maternal feed intake and myogenesis in sheep
… developed to investigate the effect of maternal feed intake on muscle cellularity and myogenic gene expression of fetal sheep." --p. vi.
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Factors Affecting Voluntary Feed Intake of Growing Lambs
Made available in DSpace on 2014-12-10T22:30:29Z (GMT). No. of bitstreams: 1 7412145.pdf: 6164913 bytes, checksum: 96c16eef794d99a148a12f86a5d6ba5d (MD5) Previous issue date: 1973
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Feed intake in chickens: genetic and social factors
… in amino acid content. In Experiment II, growth, feed intake, and feed preferences for diets varying in content of lysine, methionine, or tryptophan were measured in Line HW and a line of White Leghorns (HA) selected for high antibody response to sheep erythrocytes. Chicks were fed one of seven …
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Factors Affecting the Voluntary Feed Intake of Beef Cows
Made available in DSpace on 2014-12-13T19:42:46Z (GMT). No. of bitstreams: 1 7820924.pdf: 2160643 bytes, checksum: a776d8dd82c08481d5d8d8dc9efecd2a (MD5) Previous issue date: 1978
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The relationship between mitochondria and residual feed intake in feedlot cattle
Residual feed intake (RFI) is a measure of feed efficiency that is not related to an animal's growth rate or body size. Little is known about the factors that affect RFI because, until recently, the measurement of RFI in large numbers of animals was not possible. Recently, researchers have shown a …
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Increasing voluntary feed intake by the chick: Experiments on managing eating behavior
… by chicks. Then an attempt was made to increase feed intake by sequencing discriminatable diets.
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Dietary macronutrient composition and exogenous neuropeptide Y affect feed intake in brioler chicks
… species. This research investigates how food intake is affected by dietary macronutrient composition in broiler type chickens that are fed three varying macronutrient diets: high carbohydrate (22% CP, 3000kcal/kg) a broiler starter diet, high fat (60% ME from lard), high protein 30%CP). All …
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Programmed Feed Intake of High Energy Diets Influences Digestibility and Maintenance Requirements of Beef Cattle
… conducted to determine the effects of programmed feed intake of high-energy diets and how it influences digestibility and maintenance requirements of beef cattle. In the first experiment, 32 cows were used in a lactation study to determine the effects of program fed soyhulls on cow lactation and …
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Nutritional and Environmental Factors Affecting Feed Intake Level and Pattern in Growing and Finishing Pigs
… and environmental factors on growth performance, feed intake level and feed intake pattern using Feed Intake Recording Equipment in growing and finishing pigs. Barrows had a greater number of meals per day than boars and gilts. Daily feed intake increased with dietary lysine content due to …
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Effects of treating lignocellulosics with alkaline hydrogen peroxide on feed intake and digestion by dairy cattle
Lower nutrient digestibility and feed intake has limited the amount of lignocellulosic residues and by-products fed in the dairy production system. The alkaline hydrogen peroxide (AHP) treatment of lignocellulosics has been shown to increase degradation of structural carbohydrates by ruminal …
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The Relationship between Residual Feed Intake, Dry Matter Intake, and Reproductive Performance in Holstein Dairy Cows
Feed represents a large portion of input costs for dairy operations. Decreasing the feed consumed, measured here as dry matter intake (DMI), would therefore be advantageous to producers. However, this decrease could result in cows that do not supply the necessary energy to maintain high production, …
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RESIDUAL FEED INTAKE AND THE RELATIONSHIP WITH PERFORMANCE, TEMPERAMENT AND CARCASS TRAITS IN GROWING AND FINISHING STEERS
… were weighed at 14-d intervals and dry matter intake (DMI) measured for 70 d during both phases. Residual feed intake (RFI) is the difference between actual DMI and DMI predicted from linear regression of DMI on mid-test metabolic body weight. Ultrasound carcass measurements were measured on …
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Selection for serum cholesterol, voluntary physical activity, 56- day body weight and feed intake in albino mice
… AL), 56-day body weight (lines WH and WL) and feed intake (lines IH and IL). An unselected, random-bred control line was maintained with each pair of divergent selected lines (CC, AC, NC and IC, respectively). In the lines selected for SC, physical activity and 56-day body weight, selection was …
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Effect of Social Rank on Pig Performance and Feeding Behavior With Conventional and Electronic Feed Intake Recording Equipment
… and did not determine the effect of rank on feed intake, growth performance, and feeding behavior. This experiment was conducted to determine the effect of rank for pigs based on wins using two types of single-spaced feeders (conventional vs. electronic). Winning was defined as a pig that …
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Determining the added value of coproducts based adaptation diets and the heritability of variation in feed intake in Red Angus cattle
The main goal of the feedlot industry is to maximize growth in cattle while minimizing costs in all phases of the finishing period. Traditionally, this is done by feeding diets high in grain to maximize energy intake. However, cattle coming to the feedlot are typically consuming diets high in …
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Corticotrophin Releasing Hormone Modulation of Feed Intake, Gastric Motility, and Behavior in Low and High Body Weight Selected Lines of Chickens
… ICV injection of CRH dose-dependently decreased feed intake in both lines but did not effect water intake. When CRH receptor antagonists were ICV injected an increase in feed intake in the LWS line but not in the HWS line was observed, however the appetite reducing effect of CRH was attenuated in …
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Quantification and characterisation of nutrients in Senegalia Mellifera milled biomas, feed intake and nitrogen balance in female boer goats fed with Senegalia Melifera bush-based feeds
… at Neudamm farm and to determine the dry matter intake (DMI), apparent digestibility and nitrogen retention in female Boer goats fed with Senegalia mellifera bush based feeds. Wood ash (WA), Polyethylene glycol (PEG, 6 000) and Biochar were evaluated as tannin deactivation methods. The milled …
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Line characterization and evaluation of genetic parameters of serum cholesterol levels, activity, feed intake, growth and body moisture in selected and unselected lines of laboratory mice
Feed intake, growth, efficiency, and serum cholesterol levels (SCL) were recorded for 102 male mice, and voluntary physical activity and SCL were recorded for 113 male mice from lines selected for 22 generations for maximum 21- to 42-day gain (H), minimum 21- to 42-day gain (L), and a random-bred …
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Residual feed intake, breed of sire and dam, and individual sire affect performance and carcass characteristics and rates of back fat and intramuscular fat of feedlot steers
… into high (H), medium (M), and low (L) residual feed intake (RFI) groups. Steers in the H RFI group ate 1 kg more of DMI (P< 0.05) per day than steers in the L and M RFI group. Steers in the L RFI group had the highest feed efficiency by gaining 15% and 22% more per kg of feed than steers in the …
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Protein metabolism in the lactating sow
… were conducted to examine factors affecting feed intake and protein metabolism in the lactating sow. The primiparous sow exhibits poor appetite during the initial phase of lactation in relation to her requirements for production. The early phase of lactation is associated with a high plasma …
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