Live Cattle
Mostrando 1-12 de 110 artigos, teses e dissertações.
-
1. Interação genótipo x ambiente sobre o desempenho ponderal de animais da raça Nelore na região Centro-Oeste
RESUMO Utilizaram-se registros de pesos corporais padronizados aos 120, 210, 365 e 450 dias de idade, provenientes de 30.481 animais da raça Nelore, progênies de 211 reprodutores acasalados com 19.229 matrizes, oriundos de rebanhos dos estados de Mato Grosso, Mato Grosso do Sul e Goiás, com o objetivo de avaliar a presença de interação genótipo x ambi
Arq. Bras. Med. Vet. Zootec.. Publicado em: 28/10/2019
-
2. Do live or inactive yeasts improve cattle ruminal environment?
ABSTRACT This research was conducted to investigate the effect of live and inactive sugarcane yeast on beef cattle voluntary intake, apparent digestibility of nutrients, ruminal pH, volatile fatty acids (VFA) concentrations, and ruminal ammonia. Five rumen-cannulated Nellore heifers were distributed in a 5×5 Latin square design, with five experimental perio
R. Bras. Zootec.. Publicado em: 22/07/2019
-
3. Heritability estimation and genetic correlations for mature weight, visual scores, and growth traits in Nellore cattle
ABSTRACT This study was intended to estimate the genetic associations between growth traits and visual scores with possible changes in mature weight (MW) in 397,900 Nellore animals. A bi-character analysis was performed to estimate the (co)variances and genetic parameters for MW, which comprises the following traits: conformation, finishing precocity, muscul
R. Bras. Zootec.. Publicado em: 10/06/2019
-
4. Experimental reproduction of cyanogenic poisoning by star grass (Cynodon nlemfuensis Vanderyst var. nlemfuensis cv. “Florico”) in cattle
RESUMO: Descreve-se a reprodução experimental da intoxicação cianogênica por grama estrela (Cynodon nlemfuensis vanderyst var. nlemfuensis cv. ‘Florico’) em bovinos. A grama estrela foi plantada em quatro piquetes em área sombreada (1, 2, 3 e 4) e em três piquetes em área ensolarada (5, 6 e 7) e foram adubados com o equivalente a 0, 750, 200 ou 1
Pesq. Vet. Bras.. Publicado em: 02/05/2019
-
5. Farm animals against open borders: uncovering discrepancies between narratives and evidence regarding actors and motives in the animal trade
RESUMO: O artigo examina os discursos dominantes no debate sobre o transporte e comércio de animais vivos antes de analisar os dados do comércio da base de dados da ONU Comtrade. Entre 1998 e 2015, o comércio de bovinos aumentou ligeiramente, o comércio de suínos aumentou 76%, enquanto o comércio de aves mais do que duplicou. Demonstra-se que há uma
Cienc. Rural. Publicado em: 21/03/2019
-
6. PRODUCTIVE PERFORMANCE OF PRE-WEANED CALVES REARED IN THE PANTANAL
Resumo A desmama precoce (DP) vem sendo adotada nas fazendas de cria do Pantanal como alternativa para o aumento dos índices de concepção das vacas. A principal receita dessas propriedades são os bezerros (as), sendo o seu valor dependente dos seus respectivos pesos. Assim é necessário que os bezerros submetidos à DP, apresentem pesos semelhantes ou a
Ciênc. anim. bras.. Publicado em: 04/02/2019
-
7. Beef cattle performance in response to Ipyporã and Marandu brachiariagrass cultivars under rotational stocking management
ABSTRACT The objective of this two-year study was to evaluate live weight gain per animal and per area and their relationships with the characteristics of BRS Ipyporã (Brachiaria ruziziensis × Brachiaria brizantha) and Marandu (Brachiaria brizantha) pastures. A completely randomized block design was used with two treatments and four replicates. The grazing
R. Bras. Zootec.. Publicado em: 29/11/2018
-
8. Challenges of beef cattle production from tropical pastures
ABSTRACT The live weight gain of cattle on tropical pastures is reviewed and found to be low and dependent on the length of the growing season. Supplements may be added to address the primary limiting nutrient, which, in the dry season, is crude protein. The response relationships of live weight gain to level of supplement (protein or energy) that have been
R. Bras. Zootec.. Publicado em: 25/06/2018
-
9. Dry matter intake, performance and carcass characteristics of hair sheep reared under different grazing systems
ABSTRACT The aim of this study was to evaluate the effect of three different grazing systems: isolated, alternate and simultaneous, on feed intake, performance and carcass characteristics of sheep. About 5.2 ha area of Tanzania grass (Panicum maximun Jacq cultivate Tanzania) was divided into 13 paddocks. This area was used as a stocking rate of two animal un
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-12
-
10. Factors affecting the selling prices of calves in auctions in Santa Catarina State, Brazil
ABSTRACT The objective of this study was to investigate the effects of genetic group and calf sex on selling prices in auctions in the state of Santa Catarina (SC), Brazil. We evaluated 33,143 animals, representing 3,587 lots in 47 auctions from 2009 to 2014. The calves were classified according to genetic groups: British breed or crossbreed (BX); Continenta
R. Bras. Zootec.. Publicado em: 2016-10
-
11. Performance and digestibility of steers fed by-product of fresh passion fruit or sorghum silage, with and without concentrate supplementation
ABSTRACTThe objective of this study was to evaluate the nutritive value of passion fruit by-product for cattle, contrasting the results with those found with sorghum silage. Four treatments were then constituted, comprising the combinations of the two roughages and the two levels of supplementation (with or without), in a completely randomized design with fo
R. Bras. Zootec.. Publicado em: 2015-09
-
12. Live weight and metabolic hormone profile in steers moved in drives
The objective was to determine the effects of driving on the growth of steers during 55 days of moving by drive and 84 days after the arrival. Twenty-five steers were randomly chosen from a herd of 1,000 Nellore cattle, which were evaluated in two periods: the driving period, in which animals were moved a distance of 700 km on foot for 55 d; and the post-dri
R. Bras. Zootec.. Publicado em: 2014-10