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| Kuwahara, Frank Akiyoshi; Souza, Gustavo Maia; Guidorizi, Kezia Aparecida; Costa, Ciniro; Meirelles, Paulo Roberto de Lima. |
| Water deficiency during the dry seasons influences the relationship between water and gas exchange in tropical grasses, reducing their productive potential. In addition, the phosphorus (P) deficiency Brazilian soils adds to the set of factors limiting crop production. In this context, the objective of this study was to evaluate the responses of different tropical forage species to phosphorus supplementation as mitigating the damage caused by water stress. Seeds of Urochloa brizantha cv. MG-4, Urochloa decumbens cv. Basilisk, Panicum maximum cv. Áries, Panicum maximum cv. Tanzânia and Paspalum atratum cv. Pojuca were germinated in pots containing 10 liters of red-yellow podzolic type soil. Experiments were conducted by combining levels of phosphorus, 8,0... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grasses; Leaf gas exchanges; Fertilization; Water deficit pasture; Leaf gas exchanges; Fertilization; Water deficit. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28454 |
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| Kuwahara, Frank Akiyoshi; Souza, Gilberto Batista de; Ferreira, Reinaldo de Paula; Costa, Ciniro; Meirelles, Paulo Roberto de Lima. |
| Indigestible fractions of dry matter (iDM) and neutral detergent fiber (iNDF) in the feed of ruminants are mainly estimated by in situ incubation time with regard to particle size and textile types. Samples of alfafa, ground into three particle sizes, were analyzed. Samples, processed in a Willey mill with 1.0; 2.0 and 3.0 mm sieve pores, were conditioned in F57 (Ankon®), nonwoven (100 g m-2) and polyester textile bags measuring 4 x 5 cm. Material was divided into 13 incubation periods and 8 replications, and incubated in the rumen of two multiparous cows adapted to a 70:30 diet, roughage:concentrate, respectively, for 288h. iDM and iNDF rates were evaluated sequentially for non-digested percentage and data underwent analysis of variance (ANOVA p <... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestion; Neutral detergent fiber; F57; Nonwoven textile; Polyester textile. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/28867 |
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| Kuwahara, Frank Akiyoshi; Souza, Gilberto Batista de; Soares, Viviane Faria; Ferreira, Reinaldo de Paula; Costa, Ciniro; Meirelles, Paulo Roberto de Lima. |
| Current paper assesses the relationship between in situ incubation time, particle size and types of materials on estimates of indigestible fractions of dry matter (iDM) and neutral detergent fiber (iNDF) in cattle feed and feces. Samples of soybean meal, alfalfa and feces of cattle fed on high concentrated diets were analyzed. The samples were processed in a Wiley mill, with 0.5 and 1.5 mm porosity for food and 1.5 mm for feces, which were packed in 4 × 5 cm F57 bags (Ankon®) and nonwoven fabric (100 g m-2) of two brands. The material was divided into two groups, with and without treatment with acetone, and five replications. Samples of each group were incubated in the rumen of a multiparous cow adapted to a 70:30 diet, forage:concentrate diet, for 240... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zootecnia; Nutrição de ruminantes; Digestibilidade digestion; Neutral detergent fiber; Nonwoven fabric; F57. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24980 |
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