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Abstract

This article involved a broad search of applied sciences for milestone technologies we deem to be the most significant innovations applied by the North American pork industry, during the past 10 to 12 years. Several innovations shifted the trajectory of improvement or resolved significant...

Author(s)
Boyd, R. D.; Zier-Rush, C. E.; Moeser, A. J.; Culbertson, M.; Stewart, K. R.; Rosero, D. S.; Patience, J. F.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2019, 13, 12, pp 2951-2966
Abstract

Holsteins are the most numerous dairy cattle breed in North America and the breed has undergone intensive selection for improving milk production and conformation. Theoretically, this intensive selection could lead to a reduction of the effective population size and reduced genetic diversity. The...

Author(s)
Yue, X. P.; Dechow, C.; Liu, W. S.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 4, pp 2738-2745
Abstract

The main objective of the implementation of artificial insemination (AI) in cattle is to produce a sustained genetic progress in the herd. Although AI is an old reproductive biotechnology, its widespread implementation is very recent and is mainly because of the use of protocols that allows AI...

Author(s)
Bó, G. A.; Baruselli, P. S.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2014, 8, s1, pp 144-150
Abstract

In dairy cattle, 4 important recessive hereditary diseases exist: complex vertebral malformation (CVM), bovine leukocyte adhesion deficiency (BLAD), citrullinemia (CTLN), and deficiency of uridine monophosphate synthase (DUMPS). Holstein Associations in developed countries have established...

Author(s)
Sun, D. X.; Fan, X. H.; Xie, Y.; Chu, Q.; Sun, Y.; Zhang, Y.; Zhang, S. L.; Gong, W. J.; Chen, S. H.; Li, Y. H.; Shi, W. H.; Zhang, Y.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2011, 94, 11, pp 5695-5698
AbstractFull Text

The Pan American Agricultural School (Zamorano) has contributed to the region pig production since its founding, importing improved pure breeds and distributing them to the producers. Has contributed through its applied research programs in nutrition, reproduction and swine production systems...

Author(s)
Castillo, R.
Publisher
Zamorano Academic Press, Tegucigalpa, Honduras
Citation
CEIBA, 2011, 52, 1, pp 90-98
Abstract

Reyna Creole cattle originated from Bos taurus cattle brought to Latin America during the Spanish colonization in the fifteenth century and are the only remaining local breed in Nicaragua. However, the current genetic status of this breed is unknown. Therefore, the population structure of three...

Author(s)
Corrales, R.; Näsholm, A.; Malmfors, B.; Philipsson, J.
Publisher
Springer, Amsterdam, The Netherlands
Citation
Tropical Animal Health and Production, 2010, 42, 7, pp 1427-1434
Abstract

Sex allocation theories predict equal offspring number of both sexes unless differential investment is required or some competition exists. Left undisturbed, elephants reproduce well and in approximately even numbers in the wild. We report an excess of males are born and substantial juvenile...

Author(s)
Saragusty, J.; Hermes, R.; Göritz, F.; Schmitt, D. L.; Hildebrandt, T. B.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2009, 115, 1/4, pp 247-254
Abstract

As in Mexico as in Latin America, the familiar dairy production has become an important strategy to reduce poverty and to increase food security in the families. It is that, because is a very stable economic activity with periodic income (every week or day). Also it is a refuge activity, where...

Author(s)
Cervantes Escoto, F.; Cesin Vargas, A.
Publisher
Universidad Nacional Experimental de los Llanos Occidentales Ezequiel Zamora (UNELLEZ), Guanare, Venezuela
Citation
Revista Unellez de Ciencia y Tecnología, Producción Agrícola, 2007, 25, pp 72-85
AbstractFull Text

The situation of emerging genetic programs for small dairy ruminants in Europe and America has been reviewed. There are two different situations with respect to genetic breeding programs. One is referred to those well implemented and established programs (especially in Mediterranean areas) in which ...

Author(s)
Serradilla, J. M.; Ugarte, E.
Publisher
Instituto Prociência, Minas Gerais, Brazil
Citation
Proceedings of the 8th World Congress on Genetics Applied to Livestock Production, Belo Horizonte, Minas Gerais, Brazil, 13-18 August, 2006, 2006, pp 02-05
Abstract

Effects of environmental correlations among the records of ancestors of bulls in artificial breeding were evaluated with data from the Holstein-Friesian Association of America. Formulae developed for the variances and covariances of means of records and progeny group means included the effects of...

Author(s)
Thomson, G. M.; Freeman, A. E.
Citation
Journal of Dairy Science, 1970, 53, 9, pp 1259-65

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