Christhian Borges de Souza, Andrea Gondo, Simone Eliza Facioni Guimarães, Gabrielle Lemes Andrade, Gilberto Romeiro de Oliveira Menezes
{"title":"携带光滑毛基因的塞内普尔牛初生性状的定量分析。","authors":"Christhian Borges de Souza, Andrea Gondo, Simone Eliza Facioni Guimarães, Gabrielle Lemes Andrade, Gilberto Romeiro de Oliveira Menezes","doi":"10.1007/s11250-025-04542-0","DOIUrl":null,"url":null,"abstract":"<p><p>Senepol cattle carrying the slick hair gene are phenotypically characterized by short and sleek hair, which increases resistance to heat stress. To assess the impact of the slick hair genotype on growth, carcass, precocity, and feed efficiency traits, records from 5,176 purebred Senepol cattle undergoing commercial performance tests in Brazil were used. The animals were classified as homozygous for slick hair (SS) and heterozygous (Ss) and non-carriers (ss). The phenotypic results showed that heterozygous individuals were superior (P < 0.05) for yearling weight compared to others. When the results were expressed as expected progeny difference, Ss individuals were superior to SS individuals (P < 0.05) for yearling weight. While for ribeye area, SS individuals were superior (P < 0.05) compared to ss. In conclusion, genetic improvement programs for the Senepol breed should focus on strategies that promote the slick hair phenotype, to improve adaptability to tropical conditions without compromising progress in other traits.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"57 6","pages":"294"},"PeriodicalIF":1.7000,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quantitative analysis of yearling traits in Senepol cattle carrying the slick hair gene.\",\"authors\":\"Christhian Borges de Souza, Andrea Gondo, Simone Eliza Facioni Guimarães, Gabrielle Lemes Andrade, Gilberto Romeiro de Oliveira Menezes\",\"doi\":\"10.1007/s11250-025-04542-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Senepol cattle carrying the slick hair gene are phenotypically characterized by short and sleek hair, which increases resistance to heat stress. To assess the impact of the slick hair genotype on growth, carcass, precocity, and feed efficiency traits, records from 5,176 purebred Senepol cattle undergoing commercial performance tests in Brazil were used. The animals were classified as homozygous for slick hair (SS) and heterozygous (Ss) and non-carriers (ss). The phenotypic results showed that heterozygous individuals were superior (P < 0.05) for yearling weight compared to others. When the results were expressed as expected progeny difference, Ss individuals were superior to SS individuals (P < 0.05) for yearling weight. While for ribeye area, SS individuals were superior (P < 0.05) compared to ss. In conclusion, genetic improvement programs for the Senepol breed should focus on strategies that promote the slick hair phenotype, to improve adaptability to tropical conditions without compromising progress in other traits.</p>\",\"PeriodicalId\":23329,\"journal\":{\"name\":\"Tropical animal health and production\",\"volume\":\"57 6\",\"pages\":\"294\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2025-07-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tropical animal health and production\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1007/s11250-025-04542-0\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"AGRICULTURE, DAIRY & ANIMAL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tropical animal health and production","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s11250-025-04542-0","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
Quantitative analysis of yearling traits in Senepol cattle carrying the slick hair gene.
Senepol cattle carrying the slick hair gene are phenotypically characterized by short and sleek hair, which increases resistance to heat stress. To assess the impact of the slick hair genotype on growth, carcass, precocity, and feed efficiency traits, records from 5,176 purebred Senepol cattle undergoing commercial performance tests in Brazil were used. The animals were classified as homozygous for slick hair (SS) and heterozygous (Ss) and non-carriers (ss). The phenotypic results showed that heterozygous individuals were superior (P < 0.05) for yearling weight compared to others. When the results were expressed as expected progeny difference, Ss individuals were superior to SS individuals (P < 0.05) for yearling weight. While for ribeye area, SS individuals were superior (P < 0.05) compared to ss. In conclusion, genetic improvement programs for the Senepol breed should focus on strategies that promote the slick hair phenotype, to improve adaptability to tropical conditions without compromising progress in other traits.
期刊介绍：
Tropical Animal Health and Production is an international journal publishing the results of original research in any field of animal health, welfare, and production with the aim of improving health and productivity of livestock, and better utilisation of animal resources, including wildlife in tropical, subtropical and similar agro-ecological environments.
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