Reproduction

Videos

Biosecurity & Hygiene in the Semen Collection Process

Publish Date: 09/23/2015

The objectives of this video are to: 1) describe and demonstrate the process of semen collection from boars, 2) describe and demonstrate various methods to improve hygiene during the collection process, and 3) describe characteristics of semen at collection which would be considered normal. this video will demonstrate the two-glove technique for collecting semen as well as describe and show normal ejaculate characteristics that each technician should be aware of during collecting.


Read More
Videos

Lactation

Publish Date: 10/07/2015

This video outlines swine lactation, which is one of the most critical factors in the husbandry and health of both sows and piglets. The lactating sow or gilt is the sole source of neonatal piglet nutrition and immunity. Proper lactation is essential for providing baby piglets the ability to grow, thrive, and be successfully weaned. Several management and biological factors play a role in swine lactation. This video will: - describe basic lactational physiology - troubleshoot any issues that may occur during lactation - briefly detail milk collection from the sow


Read More
Videos

Don Levis on the National Swine Reproduction Guide, U.S. Pork Center of Excellence

Publish Date: 08/20/2015

Don Levis, retired professor from the University of Nebraska, discusses the value and importance of the National Swine Reproduction Guide. He and a team of reproduction experts are working hard on the National Swine Reproduction Guide, which is being produced by the U.S. Pork Center of Excellence.


Read More
References

NC State University Final Report: Development of Real-Time, On-Farm Semen Quality Tests based on Reactive Oxygen Species

Publish Date: 07/02/2012

At the present time, insemination doses are produced in boar studs and delivered to farms at regular intervals during the week. Typically, boar studs keep a test sample from each batch of extended semen which is evaluated daily. If the quality of the test sample decreases significantly, then the boar stud instructs farms to immediately…


Read More
References

Univ. of NE-Lincoln: An Economic Analysis of Energy Restriction During Pre-Pubescence in Gilts

Publish Date: 07/02/2012

This report evaluates the economic costs of production and profits for energy-restricted and conventional gilt development programs. Production and performance data and input and output prices were used to construct enterprise budgets for both groups. Results indicate that restricting feed intake during gilt development lowered breakeven selling prices for market pigs by an average of…


Read More
References

Univ. of NE-Lincoln Report: Hand-Mating Pigs on Small and Medium Sized Pork Operations

Publish Date: 07/02/2012

Most small and medium sized swine operations have a diversified farm; thus, they cannot devote total time and management to the swine enterprise. The use of hand-mating helps to increase reproductive performance of the sow herd. Hand-mating involves the placement of an individual estrous female in a small pen where she is mated to an…


Read More
References

IA State Univ. Report 2012: Heat Stress during Pig Oocyte In Vitro Maturation Impacts Embryonic Development and Gene Expression

Publish Date: 07/02/2012

Gene expression of heat stressed oocytes matured in vitro was evaluated for potential markers which could be used to characterize the effects of heat stress on developing oocytes in the pig. Three heat stress scenarios were administered during in vitro oocyte maturation. Heat stressed oocytes had reduced maturation rates, decreased developmental competency, and altered expression…


Read More
References

IA State Univ. Report 2012: Gestational Thermal Environment Alters Postnatal Response

Publish Date: 07/02/2012

Pigs were exposed to heat stress (HS) and thermoneutral (TN) conditions in-utero. Post-weaning, they were exposed to acute heat-stress for a 24-hour period, and differences in physiological response between in-utero treatment groups were determined. Our results indicated that in-utero heat-stress had no effect on core body temperature; however the HS group had a larger cumulative…


Read More
References

IA State Univ. Report 2012: Effects of Heat Stress on Ovarian Physiology in Growing Pigs

Publish Date: 07/02/2012

Ovaries were obtained from growing pigs that had been heat-stressed and were evaluated for alterations in a signaling pathway known to play a critical role in ovarian physiology. Our results indicate that hyperthermia alters this pathway in a short space of time (after 7 days). Identifying how and why heat stress alters ovarian physiology are…


Read More
References

IA State Univ. Report 2012: Relationship Between Purebred and Crossbred Performance for Number Born Alive and Number Born Dead

Publish Date: 07/02/2012

The purpose of this study was to estimate the relationship between purebred and crossbred sow reproductive performance.


Read More Download PDF

Type

Category