Substituição do milho pela glicerina em suplementos múltiplos para novilhos Nelore em pastejo

The objective was to evaluate the performance and production costs of Nellore steers growing on Brachiaria brizantha cv. Marandu during the dry season receiving mineral supplements with partial replacement of corn by residual glycerin. 40 Nellore steers with initial body weight of 203.12 +/- 20.10 kg and average initial age of 12 months, distributed into eight paddocks of 1.6 ha each, were used. The experimental design was completely randomized with five replicates and eight supplements. Supplements with levels of partial replacement of corn by glycerin were evaluated: 0% (G0), 10% (G10), 20% (G20), 30% (G30), 40% (G40), 50% (G50) and 60% (G60) provided on the amount of 1 kg/animal/day in the natural matter, and a mineral supplement (MS). The average daily gain (ADG) was higher (P<0.05) in animals receiving supplements G30 (0.609 kg), G40 (0.588 kg) and G60 (0.611 kg) in relation to supplements G0 (0.546 kg), G10 (0.509 kg), G50 (0.561 kg) and MS (0.223 kg). There were differences (P <0.10) in ADG in supplemented animals when compared to MS. The supplemented animals showed higher ADG (P<0.05) compared to MS. The different levels provided positive financial return. It is concluded that the supply of multiple supplements replacing the corn by glycerol in production systems of steers in the dry period provides higher productive performance levels of 30, 40 and 60% and positive financial return to levels of 60% of replacement, demonstrating thus, its potential use for intensive systems of beef production on pasture.

Source and frequency of dry season lipid supplementation of grazing, finishing cattle

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Effect of starch-based supplementation level combined with oil on intake, performance, and methane emissions of growing Nellore bulls on pasture

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Genetic associations between temperament and performance traits in Nellore beef cattle

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Mineral requirements for growth and maintenance of F-1 Boer x Saanen male kids

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relative bioavailability of iron from organic sources for weanling piglets

Some authors consider minerals from organic sources more bioavailable for pig nutrition in comparison with inorganic sources. To evaluate the relative iron bioavailability from the organic source iron carbo-amino-phospho-chelate (ICAPC) to weanling piglets, it was conducted an experiment with 126 commercial piglets, using iron sulfate monohydrate (S) as standard. The experiment had a randomized block design with seven treatments (diet without adding specific source of iron, diet with 50, 100 and 150 ppm iron from S and diet with 50, 100 and 150 ppm iron from ICAPC), six replications and three animals per experimental unit. Performance parameters (average daily gain - ADG, feed: gain ratio - F:G) and blood variables (hemoglobin - Hb, hematocrit - Ht, transferrin - TR, latent iron-binding capacity - LIBC, total iron-binding capacity - TIBC, serum iron - Fe and transferrin saturation index - TSI) were evaluated. At the end of the experiment a piglet from each experimental unit was slaughtered and its liver and spleen removed for assessment of iron concentration by flame atomic absorption spectrometry (FAAS). The evaluated sources of iron yielded similar results for the variables of interest, but the increase in iron intake was followed by a linear increase in ADG, Hb, Ht, Fe and TSI as well as a linear decrease in the values of F:G, TR, LIBC and TIBC. Iron bioavailabilities from both ICAPC and S sources are similar for weanling piglets.

Boas práticas de manejo de bezerras leiteiras na fase de cria e potenciais efeitos na recria

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Suplementação no período das águas de bovinos e bubalinos recriados em pastagem de capim-xaraés (Urochloa brizantha Syn. Brachiaria brizantha cv. Xaraés)

Pós-graduação em Zootecnia - FMVZ

Macromineral requirements in male and female Saanen goats

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Altura do pasto e suplementação na recria de tourinhos e efeitos sobre a terminação

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Virginiamycin via mineral supplementation and sward height in growing Nelore young bulls

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Protocolos experimentais de confinamento para bovinos Nelore alimentados com dietas contendo glicerina bruta

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Energy sources in the supplementation of beef cattle grazing Brachiaria brizantha cv. Xaraés

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Seleção genômica e estudo de associação em um rebanho experimental da raça Nelore

Pós-graduação em Genética e Melhoramento Animal - FCAV

Association among residual feed intake, residual body weight gain, residual intake and body weight gain and temperament of Nellore cattle

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)