Selection for postweaning weight did not influence preweaning mortality.
Anita Schmidek, Mateus José Rodrigues Paranhos da Costa, Maria Eugênia Zerlotti Mercadante,Luciandra Macedo de Toledo, Joslaine Noely dos Santos Gonçalves Cyrillo, Renata HelenaBranco 2013, 'Genetic and non-genetic effects on calf vigor at birth and preweaning mortality inNellore calves', Revista Brasileira de Zootecniahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600006. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Male calves presented less vigor and higher preweaning mortality than female calves.
Anita Schmidek, Mateus José Rodrigues Paranhos da Costa, Maria Eugênia Zerlotti Mercadante,Luciandra Macedo de Toledo, Joslaine Noely dos Santos Gonçalves Cyrillo, Renata HelenaBranco 2013, 'Genetic and non-genetic effects on calf vigor at birth and preweaning mortality inNellore calves', Revista Brasileira de Zootecniahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600006. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The parameters were birth weight, preweaning growth and mortality.
RA Mege, W Manalu, N Kusumorini, SH Nasution 2006, 'Effect of Superovulation on Piglet Production', Animal Productionhttp://animalproduction.net/index.php/JAP/article/view/260. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The highest preweaning lamb mortality was 15% with the average 8.9%.
Akhmad Sodiq 2010, 'Identifikasi Sistim Produksi dan Keragaan Produktivitas Domba Ekor Gemuk di KabupatenBrebes Propinsi Jawa-Tengah', Jurnal Agripethttp://jurnal.unsyiah.ac.id/agripet/article/view/634. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Few interaction effects were found between preweaning and postweaning treatment, and no effects of postweaning treatment.
Marije Oostindjer, J. Elizabeth Bolhuis, Kristina Simon, Henry van den Brand, BasKemp 2011, 'Perinatal Flavour Learning and Adaptation to Being Weaned: All the Pig Needs Is Smell',PLoS ONE10.1371/journal.pone.0025318. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The results reveal that considerable improvements in productivity for these species could be achieved with a reduction in preweaning mortality.
Dafem, R., Zango, P., Niba, AT., Tchoumboue, J., Téguia, A. 2002, 'Reproductive and Growth Performance of the Cricetoma (Crycetomys gambianus) underCaptivity', Tropiculturahttp://www.tropicultura.org/text/v20n3/130.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)