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1. Production, reproduction performance and cost economics of nellore brown lambs reared under different systems of rearing

Author:
B. Rangamma; A. Sarat Chandra; N. Rajanna; M. Gnana Prakash; M. Venkateswarlu; Ch. Hari Krishna
Source:
Indian journal of animal research 2022 v.56 no.3 pp. 369-374
ISSN:
0976-0555
Subject:
Nellore,   etc   ; animal research; body weight; ewes; farmers; income; liveweight gain; puberty; reproductive performance;     Show all 9 Subjects
Abstract:
... To know the production and reproductive performance of Nellore brown lambs under three systems i.e. intensive, semi-intensive and extensive system of rearing and which system of rearing was beneficial for the farmer community in terms of cost economics. 36 Nellore brown lambs of 3 months age from Livestock Research Station, Mamnoor, Warangal district were randomly allotted to three rearing systems ...
DOI:
10.18805/IJAR.B-4510

2. Bos taurus haplotypes segregating in Nellore (Bos indicus) cattle

Author:
Y. T. Utsunomiya; A. A. A. D. Fortunato; M. Milanesi; B. B. Trigo; N. F. Alves; T. S. Sonstegard; J. F. Garcia
Source:
Animal genetics 2022 v.53 no.1 pp. 58-67
ISSN:
0268-9146
Subject:
Nellore,   etc   ; animal genetics; backcrossing; beef; body size; haplotypes; immunity; maternal lineage; taurine; zebu; Brazil; India;     Show all 12 Subjects
Abstract:
... Brazil is the largest exporter of beef in the world, and most of that beef derives from Nellore cattle. Although considered a zebu breed (Bos indicus), the history of Nellore cattle in Brazil is marked by the importation of bulls from India, the use of a Creole taurine (Bos taurus) maternal lineage to quickly expand the herds and backcrossing to Nellore bulls to recover zebu ancestry. As a consequ ...
DOI:
10.1111/age.13164

3. Influence of Elective Cesarean Calving (with and without Dexamethasone Induction) on the Erythrogram and Iron Serum Profiles in Nellore Calves

Author:
Luan Ricci Silva; Renan Braga Paiano; Mariana Guimarães de Oliveira Diogo; Melina Marie Yasuoka; Ana Claúdia Birali; Mayara Berto Massuda; Maria Luiza Kuhne Celestino; Daniela Becker Birgel; Flávio José Minieri Marchese; Paulo Fantinato Neto; Vanessa Martins Storillo; Eduardo Harry Birgel Junior
Source:
Animals 2022 v.12 no.12 pp. -
ISSN:
2076-2615
Subject:
Nellore,   etc   ; anemia; blood serum; cesarean section; dexamethasone; erythrocyte count; erythrocytes; hematocrit; hemoglobin; iron; neonates; transferrin;     Show all 12 Subjects
Abstract:
... The aim of the present study is to evaluate the erythrogram and iron serum profiles of neonatal calves born spontaneously or born by elective cesarean section with or without dexamethasone induction. The research was performed on 38 newborn Nellore calves. Three groups of calves were assigned according to the type of birth: calves born by spontaneous vaginal calving (n = 10), calves born by electi ...
DOI:
10.3390/ani12121561

4. Performance and economic analysis of Nellore cattle finished in feedlot during dry and rainy seasons

Author:
Andressa S. Santos; Severino DJ Villela; Fernando de Paula Leonel; Lucas L. Verardo; Josimari ReginaPaschoaloto; Pedro VR Paulino; Éllem Maria de Almeida Matos; Paulo Gustavo M de Almeida Martins; Gabriel Machado Dallago; Patrícia Monteiro Costa
Source:
Livestock science 2022 v.260 pp. 104903
ISSN:
1871-1413
Subject:
Nellore,   etc   ; animal performance; body weight; cattle; diet; dry season; economic sustainability; feedlots; opportunity costs; profitability; wet season;     Show all 11 Subjects
Abstract:
... We aimed at evaluating the animal performance and economic variables of Nellore cattle finished in feedlot during the dry and rainy seasons. A total of 1,908 Nellore animals with an average age of 24 months were used. These animals were separated into two groups: 1,021 animals, with an average body weight of 400 kg, wereconfined for 100 days in the dry season and 887 animals, with an average body ...
DOI:
10.1016/j.livsci.2022.104903

5. Physicochemical composition and sensory attributes of manufactured beef burger patties obtained from young Nellore bulls supplied with lauric acid

Author:
Sergiane A. Araújo; Rebeca Dantas X. Ribeiro; Anny Graycy V. O. Lima; Thiago Vinicius C. Nascimento; Jarbas Miguel Silva Júnior; Thadeu M. Silva; Paulo Roberto S. Pimentel; Neiri Jean A. Santos; Dante P. D. Lanna; Leilson R. Bezerra; Ronaldo L. Oliveira
Source:
Journal of food processing and preservation 2022 v.46 no.1 pp. e16126
ISSN:
0145-8892
Subject:
Nellore,   etc   ; beef; color; conjugated linoleic acid; diet; dodecanoic acid; hardness; lipid peroxidation; pH; raw meat; water activity;     Show all 11 Subjects
Abstract:
... This research evaluates beef burger patties made with meat from animals fed with the addition of 0.0%, 0.5%, 1.0%, and 1.5% lauric acid as a diet supplement. Beef burger patties showed no change (p > .05) in most physicochemical characteristics (centesimal composition, cooking loss, water activity, color parameters), lipid oxidation, and fatty acid (FA) concentrations. The pH, C12:0 and conjugated ...
DOI:
10.1111/jfpp.16126

6. The effect of subclinical endometritis on reproductive performance in postpartum Bos indicus multiparous beef cows

Author:
R.V. Oliveira Filho; R.F. Cooke; G.A. de Mello; V.M. Pereira; J.L.M. Vasconcelos; K.G. Pohler
Source:
Animal reproduction science 2022 v.237 pp. 106928
ISSN:
0378-4320
Subject:
Nellore,   etc   ; beef; cell biology; embryonic mortality; endometritis; endometrium; estrus; estrus synchronization; insemination; pregnancy diagnosis; reproductive performance; zebu;     Show all 12 Subjects
Abstract:
... The objective was to investigate the prevalence of subclinical endometritis (SE) in postpartum Bos indicus multiparous beef cows using different polymorphonuclear cells (PMN) threshold ratios, and to evaluate the impacts of SE on their reproductive performance. A total of 689 postpartum Nellore cows (45.2 ± 7.8 days postpartum) were submitted to an estrus synchronization protocol + timed-artificia ...
DOI:
10.1016/j.anireprosci.2022.106928

7. Standardization of loop-mediated isothermal amplification for detection of D. nodosus and F. necrophorum causing footrot in sheep and goats

Author:
M. Kavitha; N. Vinod Kumar; B. Sreedevi
Source:
Tropical animal health and production 2022 v.54 no.1 pp. 57
ISSN:
0049-4747
Subject:
Nellore,   etc   ; Dichelobacter nodosus; Fusobacterium necrophorum; animal health; detection limit; footrot; genes; loop-mediated isothermal amplification; rapid methods; sheep;     Show all 10 Subjects
Abstract:
... The loop-mediated isothermal amplification (LAMP) was standardized for rapid detection of Dichelobacter nodosus and Fusobacterium necrophorum. A total of 250 foot swabs were screened from sheep (200) and goats (50) from different districts of Rayalaseema, viz., Chittoor, Nellore, Kadapa, and Anantapur. Out of 250 samples 75 (30.0%) and 85 (34.0%) were positive for D. nodosus and F. necrophorum, re ...
DOI:
10.1007/s11250-022-03064-3

8. Impacts of body condition score at beginning of fixed-timed AI protocol and subsequent energy balance on ovarian structures, estrus expression, pregnancy rate and embryo size of Bos indicus beef cows

Author:
Marcelo Vedovatto; Renan Barbosa Lecciolli; Eduardo de Assis Lima; Raizza Fátima Abadia Tulux Rocha; Rafaela Nunes Coelho; Philipe Moriel; Luana Gomes da Silva; Luiz Carlos Louzada Ferreira; Aldair Félix da Silva; Willian Vaniel Alves dos Reis; Dalton Mendes de Oliveira; Gumercindo Loriano Franco
Source:
Livestock science 2022 v.256 pp. 104823
ISSN:
1871-1413
Subject:
Nellore,   etc   ; artificial insemination; beef; body condition; body weight; corpus luteum; energy balance; estrus; ovarian follicles; pregnancy rate; progesterone; zebu;     Show all 12 Subjects
Abstract:
... These two studies evaluated the effects of body condition score (BCS) at beginning of fixed-timed artificial insemination (FTAI) protocol and subsequent BCS change on ovarian structures, estrus expression, pregnancy rate and embryo size of multiparous Nellore beef cows. In Experiment 1, 240 cows, distributed over four years (n = 40, 20, 82 and 98 cows, for years 1, 2, 3 and 4, respectively) were a ...
DOI:
10.1016/j.livsci.2022.104823

9. Selection effect for growth traits on energy requirements in beef Nelore steers

Author:
Iara Del Pilar Solar Diaz; Luis Antonio Framartino Bezerra; Raysildo Barbosa Lôbo; Francisco Ribeiro de Araújo Neto; Gregório Miguel Ferreira de Camargo; Valdecy Aparecida Rocha da Cruz; Raphael Bermal Costa; Henrique Nunes de Oliveira
Source:
Tropical animal health and production 2022 v.54 no.4 pp. 213
ISSN:
0049-4747
Subject:
Nellore,   etc   ; Urochloa decumbens; animal age; animal health; beef; beef production; body weight; energy; pastures; regression analysis; slaughter; weight gain;     Show all 12 Subjects
Abstract:
... Growth data of 77,372 Nelore steers were used to estimate the selection effect on energy requirements considering two beef production systems: cow-calf and slaughter cycles. All the animals had measures from 120 days to 7 years old. The parameters necessary to evaluate the selection effect on energy requirements were obtained by random regression analysis using Legendre polynomials. The models inc ...
DOI:
10.1007/s11250-022-03210-x

10. Signatures of selection in Nelore cattle revealed by whole-genome sequencing data

Author:
Amanda Marchi Maiorano; Diercles Francisco Cardoso; Roberto Carvalheiro; Gerardo Alves Fernandes Júnior; Lúcia Galvão de Albuquerque; Henrique Nunes de Oliveira
Source:
Genomics 2022 v.114 no.2 pp. 110304
ISSN:
0888-7543
Subject:
Nellore,   etc   ; beef; cattle; chromosomes; computer software; domestication; feed conversion; genomics; haplotypes; immune response; major histocompatibility complex; markets; purebreds; Brazil;     Show all 14 Subjects
Abstract:
... Nelore cattle breed was farmed worldwide due to its economic importance in the beef market and adaptation to the tropics. In Brazil, purebred Nelore animals (PO) receive a certificate from the breeders' association based on the animal's genealogy and morphological characterization. The top 20 to 30% of the superior animals are eligible to receive the Special Certificate of Identification and Produ ...
DOI:
10.1016/j.ygeno.2022.110304

11. Sperm function and oxidative status: Effect on fertility in Bos taurus and Bos indicus bulls when semen is used for fixed-time artificial insemination

Author:
Roberta Ferreira Leite; João Diego de Agostini Losano; Giulia Kiyomi Vechiato Kawai; Bruno Rogério Rui; Ken Kawaoka Nagai; Vivian Cardoso Castiglioni; Adriano Felipe Perez Siqueira; Mayra Elena Ortiz D'Avila Assumpção; Pietro Sampaio Baruselli; Marcilio Nichi
Source:
Animal reproduction science 2022 v.237 pp. 106922
ISSN:
0378-4320
Subject:
Nellore,   etc   ; Angus; DNA; animal reproduction; artificial insemination; cryopreservation; membrane potential; mitochondria; mitochondrial membrane; oxidative stress; semen quality; sperm quality; zebu;     Show all 13 Subjects
Abstract:
... Semen quality is one of the criteria used for the selection of bulls with relatively greater fertility. In addition, bull fertility depends on the integrity and function of all sperm structures. The aim of this study, therefore, was to determine associations when there was conducting of conventional and functional techniques for the evaluation of sperm samples from bulls with known fertility histo ...
DOI:
10.1016/j.anireprosci.2022.106922

12. Progesterone release profile and follicular development in Nelore cows receiving intravaginal progesterone devices

Author:
Lucas Oliveira e Silva; Alessio Valenza; Rodrigo Lemos Olivieri Rodrigues Alves; Mayara Silvestri; Mariana Costa Contini; Jéssica Cristina Lemos Motta; Jéssica Nora Drum; Alexandre Hênryli de Souza; Roberto Sartori
Source:
Theriogenology 2022 v.178 pp. 77-84
ISSN:
0093-691X
Subject:
Nellore,   etc   ; animal reproduction; beef cattle; blood; cloprostenol; ears; estradiol; experimental design; follicular development; norgestomet; ovarian follicles; progesterone; surface area; ultrasonics; zebu;     Show all 15 Subjects
Abstract:
... This study aimed to evaluate the progesterone (P4) release profile provided by four commercially available intravaginal P4 devices, as well as the effect of circulating P4 concentrations exclusively from these devices on the development of the dominant follicle (DF) in Nelore (Bos indicus) cows. Therefore, non-lactating multiparous Nelore cows were enrolled in an experimental design, over three re ...
DOI:
10.1016/j.theriogenology.2021.11.005

13. Investigating potential causal relationships among carcass and meat quality traits using structural equation model in Nellore cattle

Author:
Tiago Bresolin; Tiago Luciano Passafaro; Camila Urbano Braz; Anderson Antonio Carvalho Alves; Roberto Carvalheiro; Luiz Artur Loyola Chardulo; Guilherme Jordão de Magalhães Rosa; Lucia Galvão de Albuquerque
Source:
Meat science 2022 v.187 pp. 108771
ISSN:
0309-1740
Subject:
Nellore,   etc   ; backfat; carcass weight; cattle; equations; genetic selection; lipid content; longissimus muscle; marbling; meat tenderness; shear stress; standard deviation; structural equation modeling;     Show all 13 Subjects
Abstract:
... The objective of this study was to investigate potential causal relationships among hot carcass weight (HCW), longissimus muscle area (LMA), backfat thickness (BF), Warner-Bratzler shear force (WBSF), and marbling score (MB) traits in Nellore cattle using structural equation models (SEM). The SEM fitted comprises the following links between traits: WBSF → LMA, WBSF → HCW, HCW → LMA, BF → HCW, and ...
DOI:
10.1016/j.meatsci.2022.108771

14. The influence of protected fat in supplements on the performance and carcass characteristics of Nellore beef bulls in tropical pasture

Author:
Ana Paula Viscardi da Silva; Alexandre Menezes Dias; Luís Carlos Vinhas Ítavo; Camila Celeste Brandão Ferreira Ítavo; Marina de Nadai Bonin Gomes; Ériklis Nogueira; Gelson dos Santos Difante; Eva Nara Oliveira Gomes; Luciana Junges
Source:
Tropical animal health and production 2022 v.54 no.2 pp. 86
ISSN:
0049-4747
Subject:
Nellore,   etc   ; animal health; average daily gain; beef; body weight; diet; fat thickness; protected fat; rump; subcutaneous fat; tropical pastures; weight gain; wet season;     Show all 13 Subjects
Abstract:
... The finishing stages for uncastrated Nellore beef cattle on tropical pasture often produce high yielding carcasses with minimal fat cover. This study aimed to evaluate the performance and carcass characteristics of uncastrated Nellore beef bulls fed a diet containing rumen-protected fat during the rainy period for 210 days. Eighty Nellore beef bulls with 28 months of age, and an initial live weigh ...
DOI:
10.1007/s11250-022-03072-3

15. Current applications and perspectives of genomic selection in Bos indicus (Nellore) cattle

Author:
Gerardo Alves Fernandes Júnior; Elisa Peripolli; Patrícia Iana Schmidt; Gabriel Soares Campos; Lucio Flavio Macedo Mota; Maria Eugênia Zerlotti Mercadante; Fernando Baldi; Roberto Carvalheiro; Lucia Galvão de Albuquerque
Source:
Livestock science 2022 v.263 pp. 105001
ISSN:
1871-1413
Subject:
Nellore,   etc   ; beef; beef cattle; cost effectiveness; embryo transfer; evolutionary adaptation; feed conversion; genomics; genotyping; marker-assisted selection; meat quality; nucleotide sequences; ticks; variance; zebu;     Show all 15 Subjects
Abstract:
... Bos indicus cattle acquired very particular traits to thrive in distinct environments based on the evolutionary adaptation process they have undergone, becoming particularly relevant for tropical production systems. In this review we present and discuss the current status of the application of genomic selection (GS) for Bos indicus (Nellore) breed, also quoting GS applications in other Bos indicus ...
DOI:
10.1016/j.livsci.2022.105001

16. Effect of supplementation strategies and the use of exogenous xylanase enzyme on ruminal fermentation, digestibility, animal performance, and carcass characteristics of Nellore bulls grazing during dry season

Author:
R.L. Miorin; L.H.C. Batista; F.A. Nascimento; L.F Costa e Silva; A. Koontz; J.E. Pettigrew; F.D. Resende; G.R. Siqueira
Source:
Animal feed science and technology 2022 pp. 115373
ISSN:
0377-8401
Subject:
Nellore,   etc   ; acetates; animal performance; body weight; carcass weight; diet; digestibility; dry season; feed conversion; feeds; forage; nutrient intake; pH; propionic acid; rumen fermentation; technology; xylanases;     Show all 17 Subjects
Abstract:
... Two experiments were conducted to assess the effects of two different supplementation strategies and the use of xylanase enzyme (Enz) on ruminal fermentation, total tract digestibility, animal performance, and carcass characteristics of Nellore bulls grazing during the dry season. In the experiment 1, animal performance was evaluated in a 2-yr study, 28 Nellore bulls (442 ± 39kg of body weight (BW ...
DOI:
10.1016/j.anifeedsci.2022.115373

17. Genetic parameters for traditional and novel ultrasound carcass traits in Nellore cattle

Author:
B. S. Marestone; R. A. A. Torres Junior; L. O. C. Silva; G. R. O. Menezes; C. A. S. D. Muniz; E. L. A. Ribeiro
Source:
Tropical animal health and production 2022 v.54 no.1 pp. 34
ISSN:
0049-4747
Subject:
Nellore,   etc   ; animal health; animal models; body weight; carcass quality; cattle; fat thickness; genetic improvement; heritability; intramuscular fat; rump; slaughter; steaks; subcutaneous fat; ultrasonics; variance; yearlings;     Show all 17 Subjects
Abstract:
... The objective of this study was to contribute to genetic improvement for carcass quality in Nellore cattle by estimating genetic parameters for carcass characteristics measured by traditional and novel ultrasound adjusted for body weight. Records of 19,910 Nellore breed animals born between 2001 and 2015 as part of a genetic improvement program were evaluated for this purpose. The (co)variance com ...
DOI:
10.1007/s11250-021-03028-z

18. Sustainable Intensification of Beef Production in the Tropics: The Role of Genetically Improving Sexual Precocity of Heifers

Author:
Gerardo Alves Fernandes Júnior; Delvan Alves Silva; Lucio Flavio Macedo Mota; Thaise Pinto de Melo; Larissa Fernanda Simielli Fonseca; Danielly Beraldo dos Santos Silva; Roberto Carvalheiro; Lucia Galvão Albuquerque
Source:
Animals 2022 v.12 no.2 pp. -
ISSN:
2076-2615
Subject:
Nellore,   etc   ; beef cattle; beef production; case studies; early development; genetic improvement; genetic trend; genomics; genotype-environment interaction; heifers; herds; marker-assisted selection; phenotype; pregnancy; zebu;     Show all 15 Subjects
Abstract:
... Increasing productivity through continued animal genetic improvement is a crucial part of implementing sustainable livestock intensification programs. In Zebu cattle, the lack of sexual precocity is one of the main obstacles to improving beef production efficiency. Puberty-related traits are complex, but large-scale data sets from different “omics” have provided information on specific genes and b ...
DOI:
10.3390/ani12020174

19. Whole-Genome Sequencing and Comparative Genomic Analysis of Antimicrobial Producing Streptococcus lutetiensis from the Rumen

Author:
Isabela Maria Fernandes de Oliveira; Fernanda Godoy-Santos; Linda Boniface Oyama; Sofia Magalhães Moreira; Rodrigo Gonçalves Dias; Sharon Ann Huws; Christopher J. Creevey; Hilário Cuquetto Mantovani
Source:
Microorganisms 2022 v.10 no.3 pp. -
ISSN:
2076-2607
Subject:
Nellore,   etc   ; CRISPR-Cas systems; Streptococcus bovis; Streptococcus lutetiensis; antimicrobial peptides; antimicrobial properties; bacteriocins; biosynthesis; computer simulation; genome; genomics; livestock production; molecular weight; polyacrylamide gel electrophoresis;     Show all 14 Subjects
Abstract:
... Antimicrobial peptides (AMPs) can efficiently control different microbial pathogens and show the potential to be applied in clinical practice and livestock production. In this work, the aim was to isolate AMP-producing ruminal streptococci and to characterize their genetic features through whole-genome sequencing. We cultured 463 bacterial isolates from the rumen of Nelore bulls, 81 of which were ...
DOI:
10.3390/microorganisms10030551

20. Chronological characterization of sperm morpho-functional damage and recovery after testicular heat stress in Nellore bulls

Author:
Laura Nataly Garcia-Oliveros; Rubens Paes de Arruda; Leonardo Batissaco; Vitor Hugo Guilger Gonzaga; Vinícius José Moreira Nogueira; Shirley Andrea Florez-Rodriguez; Flávia dos Santos Almeida; Maíra Bianchi Rodrigues Alves; Sâmara Cristine Costa Pinto; Marcilio Nichi; João Diego de Agostini Losano; Giulia Kiyomi Vechiato Kawai; Eneiva Carla Carvalho Celeghini
Source:
Journal of thermal biology 2022 v.106 pp. 103237
ISSN:
0306-4565
Subject:
Nellore,   etc   ; DNA fragmentation; acrosome; epididymis; head; heat stress; lipid peroxidation; meiosis; membrane potential; mitochondria; mitochondrial membrane; mitosis; plasma membrane; seminiferous epithelium; sperm motility; sperm quality; spermiogenesis;     Show all 17 Subjects
Abstract:
... Heat stress (HS) affects spermatogenesis and sperm maturation, decreasing sperm quality. Yet sperm morpho-functional changes caused by HS in Nellore bulls are not fully elucidated. This study aimed to show the chronological effects on sperm quality of HS during spermatogenesis and sperm maturation until recovery of the seminiferous epithelium in Nellore bulls. Nine Nellore bulls were distributed i ...
DOI:
10.1016/j.jtherbio.2022.103237