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Correlations between production and economic variables in dairy cows on a tropical pasture Animal Sciences
Figueiredo, Cibelle Borges; Santana Júnior, Hermógenes Almeida de; Bezerra, Leilson Rocha; Mendes, Fabrício Bacelar Lima; Cardoso-Santana, Elizângela Oliveira; Abreu Filho, George.
The objective of this study was to evaluate correlations between production and economic variables of lactating cows on a tropical pasture. The experiment involved ten ¾ Holstein × ¼ Dairy Gyr cows in the middle third of lactation at an average age of 70 ± 4.6 months and an average body weight of 400 ± 55.2 kg. Cows were supplemented with a concentrate feed with different supplement compositions aiming to promote alterations in the animal performance and economic responses. Data were analyzed statistically by Pearson correlations at the 0.95 probability level. No correlations were observed for fat and total solids with economic variables (p > 0.05). Milk yield was positively correlated with (p < 0.05), but had no correlation with FC or MRR (p >...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.05.00-4 composition; Interaction; Milk; Pasture; Relationship; Ruminant..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39737
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Performance, digestibility, microbial production and carcass characteristics of feedlot young bulls fed diets containing propolis - doi: 10.4025/actascianimsci.v34i4.15167 Animal Sciences
Aguiar, Sílvia Cristina de; Universidade Estadual de Maringá; Zeoula, Lúcia Maria; Universidade Estadual de Maringá; Moura, Lucimar Pontara Peres de; Universidade Estadual de Maringá; Prado, Ivanor Nunes do; Universidade Estadual de Maringá; Paula, Eduardo Marostegan de; Universidade Estadual de Maringá; Samensari, Rafael Barreiros; Universidade Estadual de Maringá.
The objective was to evaluate the effect of propolis-based products (PBP) on performance, digestibility, microbial production and carcass characteristics of feedlot young bulls. Twenty-seven crossbred young bulls were used, with 353 ± 28 kg of body weight in a completely randomized experimental design, divided in three treatments: two diets with PBP with different dosages (PBP1= 0.018 mg g-1 and PBP2= 0.036 mg g-1 of total flavonoids in chrysin) and control diet (CON). To determine total digestibility, the indigestible dry matter was used as an internal marker, while microbial production was estimated from purine derivatives in urine, collected by the spot method. The evaluated carcass characteristics were: hot carcass weight, dressing percentage,...
Palavras-chave: 5.04.00.00-2 additive; Flavonoids; Meat quality; Microbial efficiency; Ruminant additive; Flavonoids; Meat quality; Microbial efficiency; Ruminant..
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/15167
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Performance of beef cattle bulls in feed lots and fed on diets containing enzymatic complex Animal Sciences
Oliveira, Leonardo Guimarães de; Ferreira, Reginaldo Nassar; Padua, João Teodoro; Ulhoa, Cirano José; Cysneiros, Cristine dos Santos Settimi; Arnhold, Emmanuel.
Current paper evaluates the performance of confined beef cattle supplemented with amylolytic enzyme complex produced by fungus Aspergillus awamori and a commercial product containing multienzyme complex, yeast and MOS. Treatments comprised control (basal diet composed of 16% Mombasa grass silage, 66% ground corn, 3% vitamin nuclear mineral and 15% cottonseed meal), amylase treatment (control diet with the addition of 48.7 saccharifying units kg-1 diet) and compound treatment (control diet with the addition of enzymatic complex composed of 83.2 saccharifying units, 8.8 fibrolytic units, 0.05 g of mannan oligosaccharides and 0.2 g of inactivated yeast Kg-1 of the dry matter diet). The addition of products did not significantly increase daily weight gain,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.03.02-8 starch; Biotechnology; Feedlot; Ruminant..
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/26446
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