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繁殖、育种与人工授精 专题文章
显示繁殖、育种与人工授精 当中的136-149号文章
Performance of 1/4 Chinese (Meishan) and three-breed conventional crosses for sow productivity and growth and carcass characteristcs ofthe progeny
By Bradley Wolter, Daniel Hamilton, and Mike Ellis Department of Animal Sciences, University of Illinois - The study was conducted at the Moorman Swine Research Farm at the University of Illinois - Three dam lines were produced for this study; namely...
By Bradley Wolter, Daniel Hamilton, and Mike Ellis Department of Animal Sciences, University of Illinois - The study was conducted at the Moorman Swine Research Farm at the University of Illinois - Three dam lines were produced for this study; namely...
Targeting Sow Productivity
By Tyler Kelley, Pork Magazine - Maximizing efficiencies is a constant business goal, but deciding which numbers best reflect those efficiencies ??“ particularly in the sow herd ??“ can be a challenge.
By Tyler Kelley, Pork Magazine - Maximizing efficiencies is a constant business goal, but deciding which numbers best reflect those efficiencies ??“ particularly in the sow herd ??“ can be a challenge.
Reducing reproductive loss due to PRRS
By Boehringer Ingelheim Vetmedica - PRRS is now endemic in the UK. The disease infects all herd types including those with a high health status and both indoor and outdoor units, irrespective of size. It can enter the herd by various routes, e.g. movement...
By Boehringer Ingelheim Vetmedica - PRRS is now endemic in the UK. The disease infects all herd types including those with a high health status and both indoor and outdoor units, irrespective of size. It can enter the herd by various routes, e.g. movement...
Genetic Selection for AI Stud Traits
By Dr Todd See, Swine Genetics Specialist, North Carolina State University - This article is a review of the genetic control of male reproductive traits with discussion of how boars might be selected to optimize semen production and quality, as well...
By Dr Todd See, Swine Genetics Specialist, North Carolina State University - This article is a review of the genetic control of male reproductive traits with discussion of how boars might be selected to optimize semen production and quality, as well...
US Gilt Management: A Summary
By USDA NAHMS - Proper management of the young breeding female herd is essential to the health and efficiency of any swine operation. For example, different management strategies may be used to prevent disease entry into herds and to maximize reproductive...
By USDA NAHMS - Proper management of the young breeding female herd is essential to the health and efficiency of any swine operation. For example, different management strategies may be used to prevent disease entry into herds and to maximize reproductive...
Genetic Improvement of the Pig to Satisfy the Consumer
By Dr Todd See, Swine Genetics Specialist, North Carolina State University - Quality is consumer defined and consumer driven. This has led to a whole new way of thinking about pork production. For instance, what bundle of quality attributes can be supplied...
By Dr Todd See, Swine Genetics Specialist, North Carolina State University - Quality is consumer defined and consumer driven. This has led to a whole new way of thinking about pork production. For instance, what bundle of quality attributes can be supplied...
Launching Gilts for Longevity
By Bill Raufer, Pork Magazine - Special attention to the replacement gilt offers immediate and long-term benefits, says R. Dean Boyd, technology director for the Hanor Company, which has 100,000 sows in several states.
By Bill Raufer, Pork Magazine - Special attention to the replacement gilt offers immediate and long-term benefits, says R. Dean Boyd, technology director for the Hanor Company, which has 100,000 sows in several states.
Turning Up the Heat on Heat Detection
By Tyler Kelley, Pork Magazine - The higher your breeding herd's farrowing rate, the higher your profits. But faulty heat detection can cut into your farrowing rate and rob you of profits.
By Tyler Kelley, Pork Magazine - The higher your breeding herd's farrowing rate, the higher your profits. But faulty heat detection can cut into your farrowing rate and rob you of profits.
Techniques for Training Boars for Semen Collection
By Mark Estienne, Swine Research Physiologist, and Allen Harper, Extension Animal Scientist-Swine, Tidewater AREC - This article focuses training boars for collection of semen off of a "dummy sow".
By Mark Estienne, Swine Research Physiologist, and Allen Harper, Extension Animal Scientist-Swine, Tidewater AREC - This article focuses training boars for collection of semen off of a "dummy sow".
Artificial Insemination in Swine: Breeding the Female
By Jodi Sterle and Tim Safranski,Department of Animal Sciences, University of Missouri-Columbia Artificial insemination (AI) in swine is not a new technique. There are reports as early as the 1930s of collecting semen for insemination. However, use...
By Jodi Sterle and Tim Safranski,Department of Animal Sciences, University of Missouri-Columbia Artificial insemination (AI) in swine is not a new technique. There are reports as early as the 1930s of collecting semen for insemination. However, use...
An investigation of intrauterine insemination with reduced sperm number in gilts and sows
Dissertation by Claudia Kr??ger, School of Veterinary Medicine, Hannover (English Abstract); The goal of this study was to determine the minimal number of sperm which can be used without reduction in either the pregnancy rate or the mean litter size,...
Dissertation by Claudia Kr??ger, School of Veterinary Medicine, Hannover (English Abstract); The goal of this study was to determine the minimal number of sperm which can be used without reduction in either the pregnancy rate or the mean litter size,...
Dealing with Litter Size Problems
by John Gadd, Dorset, England. Litter size ??“ particularly piglets born alive/litter ??“ does not seem to be much of a headache for European pork producers. But farther afield from Europe...
by John Gadd, Dorset, England. Litter size ??“ particularly piglets born alive/litter ??“ does not seem to be much of a headache for European pork producers. But farther afield from Europe...
Comfortable sows make more pigs.
By Tim Safranski, MU extension swine reproduction specialist. This article presents a number of sow-care techniques to increase litter size. Reducing stress in the first 14 days of gestation is the key.
By Tim Safranski, MU extension swine reproduction specialist. This article presents a number of sow-care techniques to increase litter size. Reducing stress in the first 14 days of gestation is the key.
Coping with seasonal infertility in the sow herd.
By NCSU Extension Swine Husbandry specialists. During summer and early fall, many sow farms experience a variety of reproductive problems. These problems can be, but are not limited to, anestrus, extended or no weaning-to-estrus intervals, poor conception...
By NCSU Extension Swine Husbandry specialists. During summer and early fall, many sow farms experience a variety of reproductive problems. These problems can be, but are not limited to, anestrus, extended or no weaning-to-estrus intervals, poor conception...
