Agriculture Commons^™

Analysis Of The Reproductive Efficiency Of The Dairy Herd At Western Kentucky University Farm, Gregorio Lagombra

Masters Theses & Specialist Projects

A study of the reproductive performance of 179 dairy cows during the period from December 1978 through March 1984 was conducted at the Western Kentucky University Farm, Bowling Green, Kentucky. The climatic data showed seasonal variation in temperature as follows: winter 3.10C, spring 15.7°C, summer 23.8°C, and fall 12.0°C. The seasonal humidity was similar for winter (81.2%), spring (83.4%), and fall (85.3%); but for summer it was considerably higher (89.4%).

The conception rate varied through all the months but was lowest during the summer months. Seasonal data for conception rate were obtained and the results were as follows: winter 54.1%, …

Effect Of Rations On Some Selected Blood Constituents Of Dairy Heifers, Kamil Akanbi

Masters Theses & Specialist Projects

The study was conducted using nine Holstein heifers with weights ranging from 700 to 990 pounds (lb). The design was a 3 X 3 Latin Square. The three rations consisted of 26.5 lb of corn silage supplemented with 3 ounces of sodium bicarbonate, 26.5 lb of corn silage, and 26.5 lb of soybean and milo haylage per head per day. The rations were offered on a rotational basis for three experimental periods consisting of three weeks each. Blood samples were taken at weekly intervals during each period; plasma concentrations of glucose, ammonia, beta-hydroxybutyrate and volatile fatty acids were determined.

There …

G85-741 Estrous Synchronization For Beef Cattle, Gene H. Deutscher

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the potential benefits of estrous synchronization, how the products and programs work, and the results and costs involved. Estrous (heat) synchronization can help beef producers improve production efficiency and economic returns. Controlling estrus and ovulation in cycling females means breeding is completed in a short period of time. Instead of females being bred over a 21-day period, synchronization can shorten the breeding period to less than 5 days, depending on the program selected. The use of synchronization has great potential for improving beef production, but it requires good management for success. Producers should understand the advantages, as …

G85-766 Retaining Ownership Of Calves Or Yearlings, Paul Q. Guyer

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the advantages and disadvantages of retaining ownership of calves or yearlings until slaughter rather than selling them to a feeder.

Retaining ownership of weanlings or yearlings through to slaughter is a management and/or marketing option that can add to the profits of the calf producer or cattle grower. It is a way of expanding and diversifying the cattle enterprise. has the potential for greater profits for the rancher or grower than for the feeder who might buy them.

The cattle feeding industry exists because it has been a profitable business over the years. These profits have been …