{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,28]],"date-time":"2025-12-28T02:27:52Z","timestamp":1766888872392},"reference-count":30,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2015,3,16]],"date-time":"2015-03-16T00:00:00Z","timestamp":1426464000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Reprod Domestic Animals"],"published-print":{"date-parts":[[2015,6]]},"abstract":"<jats:title>Contents<\/jats:title><jats:p>The objective of the present research was to evaluate the effect of a calf's genetic group on the productive and reproductive efficiency of its Nellore dam. Fixed\u2010time artificial insemination was applied to 800 cows using semen extracted from Nellore, Simmental and Angus Red bulls. Four hundred eleven cows calved, producing 119 Nellore, 103 \u00bdSimmental\u2013\u00bdNellore and 189 \u00bdNellore\u2013\u00bdAngus Red calves. The second mating period, which paired Nellore cows with Simmental bulls, was initiated 10\u00a0days after parturitions began and lasted for 5\u00a0months. Based on the two successive parturitions, the cumulative parturition rate for calving periods of 3, 4 and 5\u00a0months was calculated. Although no significant difference was observed for birth weight among the genetic groups, cross\u2010bred calves weighed, on average, 10% more than did pure\u2010bred calves at the age of 205\u00a0days. Nellore dams experienced a gestation period that was 7\u00a0days longer than did the cross\u2010bred dams, and the former showed a higher parturition rate at 90 and 120\u00a0days of the calving season, but not at 150\u00a0days (calving rates of 80.6, 76.4 and 76.2% for mothers of Nellore, \u00bdNellore\u2013\u00bdAngus Red and \u00bdNellore\u2013\u00bdSimmental, respectively, p\u00a0&gt;\u00a00.05). At 90 and 120\u00a0days, Nellore dams produced more kg of calf per mated dam. In conclusion, in a short breeding season, Nellore dams nursing pure\u2010bred Nellore calves were found to have a higher biological efficiency compared with Nellore dams nursing cross\u2010bred calves.<\/jats:p>","DOI":"10.1111\/rda.12509","type":"journal-article","created":{"date-parts":[[2015,3,17]],"date-time":"2015-03-17T05:35:28Z","timestamp":1426570528000},"page":"431-436","source":"Crossref","is-referenced-by-count":4,"title":["Reproductive Performance and Reconception of <scp>N<\/scp>ellore Cows According to Their Pure\u2010 or Cross\u2010Bred Calves"],"prefix":"10.1111","volume":"50","author":[{"given":"WB","family":"Rodrigues","sequence":"first","affiliation":[{"name":"Department of Animal Production UNESP Botucatu SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"FS","family":"Wechsler","sequence":"additional","affiliation":[{"name":"Department of Animal Production UNESP Botucatu SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E","family":"Nogueira","sequence":"additional","affiliation":[{"name":"Brazilian Agricultural Research Corporation EMBRAPA Pantanal Corumb\u00e1 MS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,3,16]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1516-35981999000500009"},{"key":"e_1_2_8_3_1","volume-title":"Proceedings of Meeting of the Sociedade Brasileira de Zootecnia","author":"Barbosa PF","year":"1995"},{"key":"e_1_2_8_4_1","first-page":"205","article-title":"Fisiologia reprodutiva de f\u00eameas taurinas e zebu\u00ednas","volume":"31","author":"Baruselli PS","year":"2007","journal-title":"Rev Bras Reprod Anim"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1590\/S0102-09352005000400014"},{"key":"e_1_2_8_6_1","first-page":"475","article-title":"Idade da vaca e m\u00eas de nascimento sobre o peso ao desmame de bezerros Nelore nas diferentes regi\u00f5es brasileiras","volume":"26","author":"Bocchi AL","year":"2004","journal-title":"Acta Scient Anim Sci"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.2527\/1995.7392558x"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0739-7240(96)00088-4"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1516-35982001000600010"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1516-35982001000300013"},{"key":"e_1_2_8_11_1","first-page":"5","article-title":"Postweaning growth and early reproductive traits of different biological types of heifers","volume":"3","author":"Doornbos DE","year":"1986","journal-title":"Montana Ag Res"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1516-35982003000500011"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.2527\/jas.2006-606"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1590\/S1516-35982006000500023"},{"key":"e_1_2_8_15_1","first-page":"45","article-title":"Idade ao primeiro parto, per\u00edodo de gesta\u00e7\u00e3o e peso ao nascimento em vacas Nellore","volume":"32","author":"Gunsky RR","year":"2001","journal-title":"Rev Ci\u00eancia Agron"},{"key":"e_1_2_8_16_1","doi-asserted-by":"crossref","first-page":"1215","DOI":"10.2527\/jas1980.5061215x","article-title":"Effective crossbreeding systems utilizing zebu cattle","volume":"50","author":"Koger M","year":"1980","journal-title":"J Anim Sci"},{"key":"e_1_2_8_17_1","first-page":"633","volume-title":"SAS\u00ae System for Mixed Models","author":"Littell RC","year":"1996"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.anireprosci.2003.11.001"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2009-2045"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.2527\/1991.6962395x"},{"key":"e_1_2_8_21_1","first-page":"530","volume-title":"Manual de controle da sa\u00fade e produ\u00e7\u00e3o dos animais","author":"Radostits OM","year":"1986"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1590\/S0102-09352005000600013"},{"key":"e_1_2_8_23_1","unstructured":"RodriguesWB 2009:Desempenho e comportamento de vacas Nelore e suas crias puras ou mesti\u00e7as no Brasil Central. 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