Tesis
Utilização de DDG e torta de girassol na alimentação de bovinos e ovinos confinados
Fecha
2017-10-27Registro en:
RUFINO JUNIOR, João. Utilização de DDG e torta de girassol na alimentação de bovinos e ovinos confinados. 2017. 65 f. Tese (Doutorado em Agricultura Tropical) - Universidade Federal de Mato Grosso, Faculdade de Agronomia e Zootecnia, Cuiabá, 2017.
Autor
Cabral, Luciano da Silva
Paula, Nelcino Francisco de
http://lattes.cnpq.br/9430306792139455
http://lattes.cnpq.br/8009596890587747
Cabral, Luciano da Silva
019.711.357-55
http://lattes.cnpq.br/8009596890587747
Silva, Janaina Januário da
214.550.458-37
http://lattes.cnpq.br/2721813981218018
019.711.357-55
004.568.941-52
Carvalho, Daniel Marino Guedes de
000.539.041-92
http://lattes.cnpq.br/5385501627964797
Romero, Jakeline Vieira
958.061.131-91
http://lattes.cnpq.br/6713502312936538
Oliveira, André Alves de
006.066.391-01
http://lattes.cnpq.br/3222415816796725
Institución
Resumen
In this research two experiments were carried out to evaluate the use of by products
in confined ruminant feed. In the experiment 1, the objective of this study was to evaluate
increasing levels of inclusion of DDG in soybean meal replacement (zero, 25, 50, 75 and 100%)
in the diet of beef cattle in confinement. For this experiment 25 animals were used Nelore,
uncastrated males with average initial weight of 30.84 kg +364.08 distributed in five treatments
in a completely randomized design. We evaluated the intake and digestibility of dry matter and
nutrients. The performance of the animals was also evaluated through the following variables:
carcass yield; total weight gain; average daily gain; carcass gain; gain yield; feed conversion;
feed efficiency and economic viability .The substitution of soybean meal by DDG not
significant (P> 0.05) in mean daily dry matter intake, with an average of 9.15 kg. The soybean
meal replacement DDG promoted by a linear decrease (P <0.035) in the non-fibrous
carbohydrate consumption. However, they resulted in a linear increase (P <0.05) for the
digestible neutral detergent fiber. When contrasted with treatments include DDG and DDG no
significant differences (P> 0.03) for the GC variable, having a higher gain for the treatment
without adding DDG. The treatment with greater substitution of soybean meal, 100%, presented
greater economic viability. In the experiment 2, the objective was to evaluate the intake,
digestibility and ingestive behavior of sheep submitted to diets with increasing levels of
sunflower cake. For this experiment we used four lambs in a desing in latin square 4x4, which
were submitted to the sunflower cake levels of zero, 10, 20 and 30% in the diet. The inclusion
levels of sunflower cake didn’t influence (P> 0.05) the values of dry matter intake (CMS) in
absolute values and in percentage of body weight (% PC). The inclusion of sunflower cake in
the confined sheep feed did not influence (P> 0.05) the apparent digestibility of dry matter,
organic matter and mineral matter. The average time of rumination and idle differ linearly (P
<0.05) increased with the inclusion of sunflower cake. But the time spent fedding was not
affected. With the increase of the inclusion of sunflower cake increased the rumination time
and decreased the idle time of the animals. The inclusion of sunflower cake in the sheep diet
has been shown to be a good alternative to include in the diet.