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Managing sows and gilts during breeding and gestation for efficient reproduction by J.R. Diehl

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Published by U.S. Dept. of Agriculture in [Washington, D.C.] .
Written in English

Subjects:

  • Animal reproduction

Book details:

Edition Notes

1981.

SeriesFact sheet -- AFS-3-8-21, Fact sheet (United States. Department of Agriculture) -- AFS-3-8-21.
ContributionsDanion, J.R., Speer, V.C., United States. Department of Agriculture
The Physical Object
Pagination4 p.
ID Numbers
Open LibraryOL26388498M

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Jan 31,  · In addition, gilts reared in individual pens have more silent heats and irregular estrous cycles than gilts reared in group pens. However, gilts reared in groups of 50 or more also had a lower conception rate than those in smaller groups. In North America, 90% of farms house breeding and gestation sows in standard gestation judybwolfman.com by: A simulation model for a swine breeding unit producing feeder pigs Managing sows and gilts during breeding and gestation for efficient reproduction. Pork Industry Hand- book, Cooperative Extension Service, Purdue University, West Lafayette, IN, England, D. C. Jones, H. W. & Younkin, D. E. (). Cited by: Jan 31,  · Current strategies for reproductive management of gilts and sows in North America 90% of farms house breeding and gestation sows in standard gestation stalls. In which are fearful of humans during gestation are more likely to savage their piglets and repeated aversive handling of sows during late gestation results in increased piglet Cited by: Group housing of sows during gestation is mandatory in the EU since Compared to housing in individual crates, group housing allows the animals to express normal activity and behavior.

Managing highly prolific sows. are to optimize the intrauterine environment via supplementing the sow during gestation. In the second part of this review, the interventions at the piglet level. In week 3, while 12 sows are bred, 12 sows are pregnant at 28 days of gestation; one sow is selected for culling. At least one gilt is required. In week 4, only 10 breeding females are bred, so even in week 1 it is known that extra gilts will be required. Two additional sows return and only 8 breeding females are found in-pig at 28 days. Minimum Breeding Ages for Boars and Gilts 24 Reproduction is seasonal, and the birth peak coincides with the monsoon in late April and May. Gestation is approximately These breeds produce lean meat combined with efficient feed conversion (3 kg of good feed is needed to produce 1 kg of pork). Compared to local pig. His book 'Animal Breeding Plans' that was published in greatly dairy cows and sows started to show reduced fertility during the high production period. This is illustrated in figure 6, where the trends in calving interval, body food producing species reproduction capacity is .

A handbook for organic pig farmers. given to breeding gilts to accustom them to the presence of humans. This handbook does not attempt to diagnose any diseases. and during gestation: • Identity of female • Dates of heat. 11 Housing Fertility Problems – Sows Check Measures. The farrowing crate was first introduced in the s (Robertson et al., ) with the primary aim of reducing live-born piglet mortality by affording greater control over sow posture changes and allowing more efficient managerial inputs to improve piglet survival (e.g., targeted heat source at the birth site) and safety for stockworkers Cited by: 6. Learn about the veterinary topic of Overview of Health-Management Interaction: Pigs. gilts and sows are vaccinated before breeding to protect from reproductive failure caused by Leptospira sp, Erysipelothrix rhusiopathiae, and parvovirus infection. It is also common practice on many farms to vaccinate sows during gestation with an. Managing replacement gilts for early puberty and efficient reproduction. Presented at Producers Workshop, Chengdu, China. Establishing and maintaining pregnancies. Presented at Producers Workshop, Chengdu, China. Comparison of U.S. and Chinese swine reproductive management: opportunities and challenges for the Chinese industry.