Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 99 for “"dairy cow"”.
-
Studies on Lactogenesis in the Dairy Cow
Made available in DSpace on 2014-12-14T15:29:39Z (GMT). No. of bitstreams: 1 7616109.pdf: 6962625 bytes, checksum: 19d8e62e030b6b381044be99e7e1d95a (MD5) Previous issue date: 1976
-
Dairy cow management systems: handling, health, and well-being
Dairy cows are handled more regularly than other forms of livestock. Besides the daily milking routine, reasons for handling dairy cattle so frequently include routine veterinary checks, reproductive management, and vaccinations. Regardless of the reason for handling cows, a working facility that …
-
Lowering ruminally degradable protein in lacatating dairy cow diets
Lactating dairy cows convert 25 to 35% of intake N to milk N, and a part of the remaining N ends up in the environment, causing pollution. Dairy cows absorb amino acids available in the small intestine supplied mainly by digestion of microbial protein and ruminally undegraded feed protein (RUP). …
-
The utilization of phytate-phosphorus by the transition dairy cow
… period (P3) which corresponds to d 47 to 56 for cow 1854 and d 64 to 73 for cow 1847. In vitro [Subscript p]P availability of corn, soybean meal (SBM), whole cottonseed (WCS), a total of mixed ration (TMR) and phytic acid (PA) were determined. Percent [Subscript p]P loss was determined by in …
-
Soybean Meal Substitution with a Microbial Protein Source in Dairy Cow Diets
… rumen, and blood parameters of high producing dairy cows. Sixteen Holstein cows (twelve multiparous and four primiparous) with 93 ± 37 DIM were used in a 4 x 4 Latin square design with four 28 d periods. Cows were blocked by parity and production, with one square consisting of 4 animals fitted …
-
Parathyroid hormone, calcitonin, serum and milk minerals in the periparturient dairy cow
… Holsteins, ten pregnant heifers and ten pregnant cows (third or greater pregnancy) were subdivided and fed either a low calcium (Ca) or Ca-supplemented ration for four weeks prepartum to determine the influence of age and prepartum Ca intake on hormonal control of peripartum Ca homeostasis. …
-
The behavioural need for lying and feeding in the high yielding dairy cow
… high milk yields on the behaviour and welfare of dairy cows. A preliminary study determined the social interactions existing within a group of 60 cows from which sub-samples of 20 high and 20 low yielding cows, that were not observed to interact with each other, were identified. These cows were …
-
Low lignin hull, high oil groat oat grain in lactating dairy cow rations
… 3582 Kcal per kg DE. A non-lactating Holstein cow with a rumen fistula was used to determine LLH-HOG oat, Derby oat, and CDC Dolly barley grain degradability. Samples were incubated in the rumen for 48, 36, 24, 12, 08, 04, and 00 hour. The in situ degradability of DM, CP, and NDF were …
-
Effect of Dairy Cow Diets on the Composition and Processing Characteristics of Milk
… milk processability and the yield and quality of dairy products. The overall aim of this thesis was to investigate the effect of different herbage allowance and feeding systems on seasonal changes in milk composition, biochemical, processing characteristics, or product manufacture and their …
-
Effects of Replacing Forage Fiber with non-Forage Fiber in Lactating Dairy Cow Diets
… and eight multiparous lactating Holstein cows were used in a replicated 4 x 4 Latin square design to evaluate the effect of replacing forage fiber with non-forage fiber source on the performance of the dairy cows. Four diets were formulated to replace corn silage with dried corn distillers …
-
Metabolism and Mammary Transport Mechanism of Immunoglobulins G1 and G2 in the Dairy Cow
Made available in DSpace on 2014-12-14T15:29:40Z (GMT). No. of bitstreams: 1 7709167.pdf: 5217603 bytes, checksum: 5a37b0a56d927b6299d6601e28584fc1 (MD5) Previous issue date: 1976
-
Real-time monitoring of dairy cow activity and feeding behavior based on computer vision
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01
-
RECYCLED MANURE SOLIDS AS DAIRY COW BEDDING SUBSTRATES: MICROBIOLOGICAL ASPECTS RELATED TO MAMMARY GLAND HEALTH
All’interno degli allevamenti di bovine da latte i solidi di letame riciclati (recycled manure solids, RMS) rappresentano un'alternativa sostenibile ai materiali da lettiera convenzionali, in linea con i principi dell'economia circolare e della sostenibilità ambientale. La loro adozione pone però …
-
Replacing Corn and Soybean Meal in Lactating Dairy Cow Diets with Field Peas (Pisum Sativum)
… with field peas (Pisum sativum L.) in lactating dairy cow diets on milk production, dry matter intake and ruminal characteristics. The experiment used 16 lactating Holstein dairy cows (nine primiparous and seven multiparous) in a 4 x 4 Latin square design with 28 d periods. Cows were blocked into …
-
Intake capacity of the Icelandic dairy cow. Effect of animal factors, concentrate ratio and feeding method
… The model predicting the DMI of the Icelandic dairy cow in the co-Nordic feed evaluation system NorFor needed an update to be able to predict the DMI more accurately. The aims of this study were to collect new data on the DMI of the Icelandic dairy cow in late lactation, and under feeding …
-
Design of an automated system for continuous monitoring of dairy cow behaviour in free-stall barns
L' alterazione del comportamento degli animali è uno degli indicatori utili per identificare l insorgenza di malattie. La necessità di controllare un numero sempre maggiore di capi negli allevamenti intensivi ha portato all utilizzo di sistemi automatizzati per il loro monitoraggio. Tra questi, i …
-
The effects of a dairy cow body condition scoring system on selected production and metabolic parameters
A dairy cow body condition scoring system was devised by the author as a practical means of determining the body condition, or fitness pertaining to the degree of body fat of dairy cows at any point during the lactation cycle. The factors considered were the thoracic and lumbar regions of the …
-
The Relative Feeding Value of Ground Soybeans and Soybean Oilmeal for Milk and Butterfat Production by the Dairy Cow
<p>The development of the soybean to a crop of great importance the past few years has been more rapid, perhaps, than that of any other plant. Most particularly is this true of its rise in the United States. Figures from the U.S. Yearbook show that in 1917 there were only 460,000 acres of the crop …
Page 1 of 5