Browsing by Subject "Feed utilization efficiency"
Now showing items 1-20 of 27
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(Texas A&M University. Libraries, 1983)Data on 167 bulls from a modified five breed diallel involving Angus, Brahman, Hereford, Holstein and Jersey were used to compare alternative statistical models for estimation and characterization of various breed types ...
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(Texas A&M University. Libraries, 1980)The economics of egg production is greatly affected by the feeding program, rate of egg production and length of production. Profit can be maximized by controlling these three factors. This study has investigated the ...
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(Texas A&M University. Libraries, 1988)Individual feed consumption, slaughter, and carcass data were obtained on 197 bulls produced in a diallel involving Angus, Brahman, Hereford, Holstein and Jersey and slaughtered at either 6, 9, 12, 15, 18, 24 or 30 mo of ...
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(Texas A&M University. Libraries, 1983)Nutrient digestibilities of yellow corn, low-tannin sorghum, hard red wheat, barley, oat groats and wheat middlings were determined at the end of the small intestine and over the total tract of growing pigs. All diets ...
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(Texas A&M University. Libraries, 1980)Barley (TAMBAR 401), wheat (TAM 101), oats (Coker 234), and wheat middlings were fed to 40 kg cannulated pigs to determine amino acid (AA) digestibilities at the end of the small intestine and over the total tract. Percentages ...
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(Texas A&M University. Libraries, 1978)Experiments were conducted with 380 Hy-line pullets fed dietary supplements of 0, 5, 10, or 15 percent sand for twelve 28-day periods and with 440, 120, and 540 day-old Hubbard x Hubbard broiler chicks fed diets with up ...
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(Texas A&M University. Libraries, 1984)Laying hen diets containing 2850 kcal ME/kg a 3 protein levels (15.0, 13.5 and 12.0%), diluted with 0 or 6% builders' sand, were fed to six groups of 22-week old Single Comb White Leghorn pullets. There were no adverse ...
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(Texas A&M University. Libraries, 1984)A serial slaughter study was used to evaluate the effect of four energy intake levels, (1) ad libitum (ad lib); (2) 85% ad lib (85%); (3) 70% ad lib (70%); or, (4) Danish scale feeding system (DS), on performance, carcass ...
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The effect of monensin in lactating beef cows in poor body condition receiving low levels of energy (Texas A&M University. Libraries, 1977)Two studies were conducted to determine if reproductive patterns or blood constituents could be altered by feeding monensin. In the first study the effects of monensin on weight gain, body condition and reproductive ...
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(Texas A&M University. Libraries, 1986)A total of 46 pregnant, 2 yr old, crossbred heifers were used in a study to determine the impact of nutrient restriction during gestation on changes in live weight, empty body (EB) weight, EB protein and EB fat. Large ...
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Effect of soluble nitrogen level in the ration on protein utilization by high producing dairy cows (Texas A&M University. Libraries, 1977)Twenty Holstein cows, six to 20 weeks in lactation were randomly allotted to four treatments in a complete block design to determine the effect of nitrogen solubility on protein utilization by dairy cows fed rations differing ...
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(Texas A&M University. Libraries, 1980)Four experiments were conducted with Indian River broiler chicks in which the protein and energy levels were fed in different combinations in an attempt to produce a broiler at 49 days of age with reduced body fat while ...
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(Texas A&M University. Libraries, 1980)Three different studies were conducted during the 1976, 1977, 1978 growing seasons with cool season annuals to characterize the composition of available and consumed forage under different grazing pressures and to interrelate ...
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(Texas A&M University. Libraries, 1987)The results of three different experiments involving different aspects of digesta flow in ruminants are presented in five chapters. In experiment one, increasing level of either rice hulls or ground hay from 0 to 30% in a ...
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(Texas A&M University. Libraries, 1978)A series of trials was conducted in April, July, and September, 1977 to examine the effect of level of stocking pressure on organic matter intake and on the botanical and chemical composition of cattle diets. Levels of ...
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(Texas A&M University. Libraries, 1982)The structural fragmentation of Coastal bermudagrass (Cynodon dactylon) and ryegrass (Lolium multiflorium) resulting from ingestive mastication and remastication subsequent to rumination was observed microscopically and ...
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(Texas A&M University. Libraries, 1980)Of all the problems that confront agriculture perhaps the unpredictability of weather is the most difficult to quantify. Twenty years of climatalogical data were obtained for Beeville, Texas and cumulative frequency ...
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(Texas A&M University. Libraries, 1976)Three studies were undertaken to determine the feasibility of reducing the time that hens are out of egg production during a forced molt program using Hyline White Leghorn type layers. The traditional forced molt programs ...
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(Texas A&M University. Libraries, 1986)Two experiments were performed in order to determine the methionine and choline requirements for maximum protein synthesis by primary cultures of chick hepatocytes. In experiment 1, a 4 x 8 factorial design was employed ...
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(Texas A&M University. Libraries, 1982)Calcium metabolism in the temperature stressed domestic chicken and turkey was examined by (1) studying the effects of brooding temperature, dietary phosphorus and molybdenum on bone mineralization in 10-day-old turkey ...