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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

The effect of gestation on milk and butterfat production in dairy cattle /

Etgen, William M. January 1958 (has links)
No description available.
42

Best linear unbiased prediction of sire breeding values using part-lactation records on daughters.

Tandon, Prabhat Kumar January 1981 (has links)
No description available.
43

Effects of a herd health program on reproductive performance of dairy cows /

Galton, David M. January 1976 (has links)
No description available.
44

Correlation of butterfat production predicted from single tests with butterfat yields calculated from monthly tests

Seymour, Harold J. January 2011 (has links)
Typescript. / Digitized by Kansas State University Libraries
45

Effect of preservatives and maturity on the nutritional value of alfalfa hay for lactating dairy cows.

Alhadhrami, Ghaleb Ali January 1991 (has links)
Urea was applied uniformly inside alfalfa hay bales at baling or on top of bales subjected to rain and weather damage. Hay temperature, color, mold retardation and chemical composition were measured. Also, 24 lactating cows were used to test acceptability of the urea-treated hays. Cows were blocked for 14 d pre-treatment milk production and randomly assigned to one of six treated hays for 3 wk (4 cows/group). Cows were then reassigned at random to another hay for an additional 3 wk. Addition of 1% or more urea to high moisture alfalfa hay resulted in higher nutritional quality through reducing bale temperatures, non-enzymatic browning, and moldiness, compared to high moisture untreated hay. Urea treatment of high moisture hay decreased ADF and NDF content, while increasing digestibility of their fiber components. Urea treated hays were readily eaten by cows with no significant differences (P>.05) between treatments in DM intake, milk production, milk composition, or DM, ADF, and NDF digestion coefficients. Five types of alfalfa hay varying in % ADF were fed to 40 lactating cows. Cows were divided into 10 groups of 4 each based on 14-d pre-treatment milk. Each hay was mixed in TMR diets with 50 or 65% concentrate. In vivo and in situ trials were conducted to determine DM, ADF and NDF digestion. Results indicated that DMI, 3.5% FCM, cows body weight, body score, rectal temperature, and milk composition except milk fat were not affected by type of hay or level of concentrate. Milk fat was affected by level of concentrate (P<.16) while milk production was affected by type of hay (P<.01). Dry matter digestion coefficients for the complete rations showed no change with increased ADF in hay. Large decreases were noted in in situ DM, ADF, and NDF digestion as hay ADF increased. In another experiment, 32 mid to late lactation cows were used in a 41 d production trial. Cows were fed 2 levels of concentrate (25 vs. 50%) with alfalfa hay. Data indicated that DMI, milk yield, 3.5% FCM, milk composition, and other parameters did not differ between treatments. This might be due to the lack of response to higher concentrate level.
46

Mathematical modelling of starch digestion in the lactating dairy cow

Mills, Jonathan January 2000 (has links)
No description available.
47

Studies of smallholder dairying along the coast of Tanzania with special reference to influence of feeding and supplementation on reproduction and lactation in crossbred cows

Msangi, Bakari Salum Juma January 2001 (has links)
No description available.
48

Preference of lactating dairy cows for grass or maize silages

Shah, Syed Jafar January 2001 (has links)
No description available.
49

Dietary sodium and the production, health and behaviour of lactating dairy cows

Arney, David Richard January 1999 (has links)
No description available.
50

Genetic analysis of production, fertility and health traits of dairy cows

Pirzada, Rashid Hussain January 2001 (has links)
No description available.

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