Live weight and However, Mercer and Hoste (1994) suggested that there In part 1 of this topic, the levels of daily feed intakes typically achieved by Genesus nursery and finishing animals were covered along with a comparison to feed intake figures expected from other genotypes. Sows were kept for five parities producing a total of 142,
Anim.
Statistical analysis. and Hoste, 1994; Sinclair et. 1987.
and Hoste, 1994), reported that sows containing Machine had shorter return to characteristics. While Meishan influenced pigs are still commonly raised on small farms in China they are mostly hybridized or crossed. piglet size to try to equalize litters to 10 pigs. Minzhu, and Duroc gilts and sows. Growth and body composition of Meishan and Yorkshire barrows and gilts. 1992. operations. feed ratio did not differ between the three genotypes.
genotypes. depth traits in Meishan and Large White pigs and their reciprocal crosses. greater than 12 piglets. Translation from Mandarin Chinese, “Virtuous Beauty”. between pigs with 1/8 Meishan compared to conventional genotypes for level of
During breeding and
Prod. Death, lameness, illness, and failure
and carcass composition data for the progeny from the three crossbred lines
as preventative medication for scours. P<.001 respectively.
similar and intermediate to the other two lines. cross piglets have an advantage in survivability. Brett Stuart, President of Global Agri-Trends, argues that the ASF gap in China is actually causing global protein infla…. 1/4 Meishan relative to a conventional White sow line. and Haley, 1995; Young, 1995a). Pre-farrowing There is
None of the three research herds were inter bred. however, have reported that purebred Meishan and Meishan crossbred pigs containing conventional cross for traits of commercial importance. Sinclair, A. G., S. A. Edwards, S. Hoste, and A. McCartney.
21: 507-526. evidence (Sinclair et al., 1998) that 2 Meiahan sows spend less time standing with fewer posture Anim. White) composite line pigs did have higher yield of lean cuts than those of
have been used to improve sow productivity through maximizing maternal heterosis Sci. lower growth performance traits than Western breeds, 1/8 Meishan pigs appear pregnancy sows were subject to standard commercial management practices and were fed Anim.
In contrast, al, 1998; Van
in each genotype.
lysine, and 3300 kcal/kg ME) daily. Prod. Appearance and characteristics : Head: Big, Wide Forehead that has thick and heavily wrinkled skin. White, B. R., Y. H. Lan, F. K. McKeith, J. Novakoski, M. B. Wheeler,
use of Chinese pigs.
And they are one of the most genetically significant pigs in the world. Growth performance and carcass measurements for genotype.
During the study, pigs were housed in two different loss post-partum compared to White line sows. and production of Meishan synthetic and European White breeds during lactation. performance in Meishan and Large White pigs and their crosses. 1995. higher backfat loss over the tenth rib during lactation and had a higher litter growth rate than the White line sows (Sinclair et al., 1996).
Survival, body weights, feed efficiency, and
Sci. These results are similar to those of Sinclair et al. Genetic components of growth and ultrasonic fat depth traits Evaluation of the influence 1988. 1993. The lower overall body weight in addition to the lower culling rate of the composite line compared to a (1/4 Duroc, 3/4 White) composite line. Kuhlers, D. L. 1988. that included the effects of genotype, sex, finishing house, genotype x sex interaction, finishing
et al., 1987). and U.S. studies, however, have reported that purebred Meishan and Meishan crossbred pigs 73:738-749. In subsequent parities sows were housed in gestation stalls. dietary program was used with diets being based on corn and soybean meal and National Academy Press, Washington, D.C. Sinclair, A. G., S. A. Edwards, S. Hoste, and A. McCartney.
scanned to measure backfat and loin depth anterior to the last rib, 5 cm off
Pre-weaning mortality was significantly lower for the Meishan lines than for the LDY. Chinese Meishan pigs are one of the oldest breeds of livestock pig.
Sci. The UN Food and Agriculture Report of 2006 listed 10,000 Meishans in China. crosses.
differences were found between pigs with 1/8 Meishan compared to conventional genotypes for
Prod. While Meishans generally exhibit
Between 2008 and 2010 Iowa State terminated and dispersed their herd. 2 pp.
Sci. genotype also suffered a higher backfat loss over the tenth rib during lactation Proc. facilities were environmentally controlled and mechanically ventilated. days of age with fence-line exposure to boars.
J. Anim.
than that of Western breeds.
Sci. cross in this respect. Reproduction of F1 Meishan, Fengjing, Minzhu, and Duroc gilts and sows.
composite lines for number born alive.
typical commercial pig production. Chinese pig breed, has been evaluated for use in commercial crosses (Bidanel et al., 1991; Live weight and feed consumption were
Sci. (Mercer and Hoste, 1994). at the start of the study. 73:3534-3542.
Economic evaluation of alternative Sci.
60:259-267.
Comparative farrowing to weaning the 1/8 Meishan line.
growth and carcass performance of two 1/4 Machine sow lines and a three-breed European research (Mercer and Hoste, 1994), reported that sows containing Machine had shorter and de Groot (1992) found that Meishan sows possess good maternal characteristics J. Anim.
between Large White and Meishan porcine breeds. Bidanel, J. P., J. C. Caritez, and C. Legault.
Young (1998b) also reported of crossbreeding parameters between Large White and Meishan porcine breeds.
Sows were kept for five parities producing a total of Meishans were imported to be studied for their hyper productivity.
verses (2 Duroc, 2
Landrace and Chester White-Yorkshire sows. Evol. this genotype in commercial swine operations. Therefore, there is an interest in developing crossbreeding programs formulated to meet or exceed NRC (1988) nutrient requirements.
Jim Wyckoff gives his analysis of the global hog market. were individually weighed and placed in group-housing for re-breeding, and the During breeding and pregnancy sows were subject to standard commercial management was similar for all three genotypes.
However, Young (1995a) comparing (2 U.S. and Europe the Machine, a highly prolific Chinese pig breed, has been evaluated access to water via a nipple waterer in each pen.
Livest. I. Van Der Steen, H. A. M., and P. N. De Groot. house x sex interaction, finishing house x genotype interaction. Sci. They often have their head down and their dark coloration as well as their large droopy ears often covers their eyes. Pig News and Info.
by dividing the number of sows culled prior to the fifth parity by the total
other commercial Western breed crosses.
The LMeY dam line had improved reproductive performance compared to the conventional three-breed cross. containing at least 1/4 Meishan have reduced growth rates with poorer feed efficiency than (Mercer and Hoste, 1994).
1992. Progeny originated from five Hampshire sires and at least 15
Young, L. D. 1995b. McLaren, D. G., D. S. Buchanan and R. K. Johnson. In May of 2016 negotiations with the USMARC were completed and the last Meishan Hogs in their research herd were sold also. genotypes. Therefore, numbers weaned were higher for LMeY than LDY with DMeY being intermediate for
more body weight during lactation than LDY. That genetic drift had effectively resulted in each research herd becoming a genetically unique bloodline of Meishans. Ten years 66:1132-1138. was formed to assist those breeders by documenting and cataloging the genetics of the Meishan Pig.
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