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Full-Text Articles in Agriculture
Ec97-275 Effect Of Lactation Length On Sow Reproductive Performance, Donald G. Levis
Ec97-275 Effect Of Lactation Length On Sow Reproductive Performance, Donald G. Levis
University of Nebraska-Lincoln Extension: Historical Materials
As lactation length decreases there is an increase in the weaning-to-estrus interval, a decrease in farrowing rate, a decrease in subsequent litter size and an increase in pigs weaned per sow per year. Because of herd-to-herd differences in the influence of lactation length on reproductive performance, each farm should conduct a preliminary study to evaluate the effect of the lactation length being considered before implementing the “new” weaning age of piglets.
Ec97-219 1997 Nebraska Swine Report, Duane Reese
Ec97-219 1997 Nebraska Swine Report, Duane Reese
University of Nebraska-Lincoln Extension: Historical Materials
The 1997 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. This publications deals with research on swine reproduction, breeding, health, nutrition, economics, and housing.
Ec97-276 Management Strategies For Pen-Mating Female Pigs, Donald G. Levis
Ec97-276 Management Strategies For Pen-Mating Female Pigs, Donald G. Levis
University of Nebraska-Lincoln Extension: Historical Materials
The master control switch of a pork production enterprise is weaning day. Pork production managers have little or no control concerning when a weaned female will cycle or how long she will be in estrus after weaning. When females are pen-mated, the producer needs to use management procedures to prevent an excessive number of estrous females from expressing the standing response at the same time, try to manage estrous females so that they are bred at the proper time, try to manage boars so they maintain an adequate level of fertility, evaluate boars for level of sexual behavior before and …
Ec97-274 Management Of Replacement Gilts For Efficient Reproduction, Donald G. Levis
Ec97-274 Management Of Replacement Gilts For Efficient Reproduction, Donald G. Levis
University of Nebraska-Lincoln Extension: Historical Materials
Successfully introducing replacement gilts into the breeding herd is an important aspect of breeding herd efficiency. To attain herd efficiency, females must ovulate adequate numbers of viable ova, express estrus, show willingness to mate and conceive in a regular manner. If these qualities are properly developed, pregnancy rate and litter size will be maximized. A gilt development and management program needs to be designed for gilts from birth to farrowing their first litter.
G97-1315 Composting Manure And Other Organic Residues, Bahman Eghball
G97-1315 Composting Manure And Other Organic Residues, Bahman Eghball
University of Nebraska-Lincoln Extension: Historical Materials
Composting is becoming more common in Nebraska because of the many advantages it offers. This NebGuide provides information on the composting process and its management and related issues.
The Composting Process
Composting is the aerobic decomposition of manure or other organic materials in the thermophilic temperature range (104-149°F). The composted material is odorless, fine-textured, and low-moisture and can be bagged and sold for use in gardens, or nurseries or used as fertilizer on cropland with little odor or fly breeding potential. Composting improves the handling characteristics of any organic residue by reducing its volume and weight. Composting can kill pathogens …
Nf97-341 A Profit Sharing Approach To Pricing 50 Pound Feeder Pigs, Larry L. Bitney
Nf97-341 A Profit Sharing Approach To Pricing 50 Pound Feeder Pigs, Larry L. Bitney
University of Nebraska-Lincoln Extension: Historical Materials
This NebFact contains a feeder pig pricing scheme which adjusts for profit and loss.
1997 Nebraska Swine Report, Duane E. Reese
1997 Nebraska Swine Report, Duane E. Reese
University of Nebraska-Lincoln Extension: Historical Materials
This publication was prepared by the staff in Animal Science and cooperating Departments for use in Extension, Teaching and Research programs. It deals with the results that were done in reproduction, breeding, health, nutrition, seconomics and housing of swine.
Study Of Livestock Production Levels In Three Communities Near The City Of Riobamba, Raul Rolando Nuñez Lopez
Study Of Livestock Production Levels In Three Communities Near The City Of Riobamba, Raul Rolando Nuñez Lopez
Theses and Dissertations
This study was done by administering household surveys to 50% of the families in the three communities. Families were selected through stratified random sampling. This allowed us to determine how much families are exploiting species that have a significant level of production as well as whether they use them for a commercial activity or subsistence. With regard to cows, 60.40 ± 4.72% of families use them. Each family has an average of 1.68 ± 0.21 cows. Productive cows make up 36.9% of the above percentage, which is a majority. The measured rate of production was 6.48 ± 0.25 L/cow/day. Overall, …