Crude glycerine in diets for piglets

Abstract

-Two experiments were carried out to determine the nutritional value and to evaluate performance of piglets fed two types of crude glycerine (CG), which were made from vegetable oil (CGS) and a mix of animal fat + % soybean oil (CGA). In experiment I, a digestibility assay was conducted using 32 crossbred piglets (19.20±1.52 kg). The experimental unit consisted of one pig, with a total of four experimental units per diet. The glycerine levels used in the digestibility assay were 4, 8, and 12% of the basal diet (corn + soybean based). The digestible (DE) and metabolizable energy (ME) values of glycerine were estimated by regression of DE and ME intake (kcal/kg) vs. glycerine intake (kg). The values (as-fed basis) of DE and ME (kcal/kg) obtained were: CGS = 5,070 and 4,556; CGA = 5,143 and 4,488, respectively. The results indicate that these two types of glycerine are a highly-available energy source for the feeding of piglets (15-30 kg). In experiment II, 90 piglets (BW = 15.18±0.67 to 30.28±1.68 kg), were allotted in a completely randomized design in 2 × 4 factorial arrangement, with of two types of crude glycerine (CGS and CGA) and four inclusion levels (3, 6, 9, and 12%). Five experimental units (pens with two pigs) were used for each level of crude glycerine, resulting in five replicates per treatment in the diet. Additionally, a control diet containing no glycerine (0%) was formulated. There was no interaction between levels of CG and types of crude glycerine, and the regression analysis indicates no effects of crude glycerine inclusion on performance and plasma variables. The results suggest that it is feasible to use up to 12% of both tyes of crude glycerine (obtained from soybean oil and mixed) in the diet for piglets without impairing performance, in addition to promoting a reduction of about 11% in the cost with feeding.

Neutralized semi-purified glycerin in pre-starting piglet feeding (6 To 15 kg)

“…This can be observed in the studies conducted by Carvalho et al (2012), who studied two kinds of crude glycerin (a vegetable source as well as a mixed source of animal and vegetable sources) and obtained 5247 and 5242 kcal kg -1 gross energy, 55.95 and 55.45% glycerol, respectively. Likewise, studied two types of semi-purified glycerin (vegetable and mixed sources) and found 3760 and 3217 kcal kg -1 gross energy and 74.94 and 68.66% glycerol, respectively.…”

“…In another study on the inclusion levels of two kinds of crude glycerin (vegetal and mixed sources) in pigs (15-30 kg), Carvalho et al (2012) observed no effect on pig performance. Similar results were obtained by , who evaluated the inclusion levels of semi-purified glycerin (vegetal and mixed sources) in pig diets during the growing and finishing phases, and observed that this co-product can be included at levels up to 16% without impairing the pigs performance.…”

Glicerina Bruta Nas Rações Para Leitões Na Fase De Creche

“…São estabelecidos níveis de até 10% para glicerina bruta (5) , 12% de glicerina semipurificada (22) e 14% de glicerina semipurificada neutralizada (23) , sem prejuízo ao desempenho dos leitões de 15 a 30 kg. Portanto, o processo de separação do biodiesel, a purificação da glicerina bruta, bem como o tipo de ração (granulada ou peletizada) serão determinantes para se estabelecerem os níveis de inclusão.…”

Glicerina bruta para codornas de corte, de um a 14 e de 15 a 35 dias de idade

“…4). Carvalho et al (2012) De acordo com Min et al (2010), o glicerol possui sabor adocicado e, por isso, promoveu aumento no consumo de ração pelos suínos (Kijora et al, 1997). É importante considerar que as aves, em comparação aos suínos, possuem menor quantidade de papilas gustativas, e pode ser que, no presente estudo, o aumento linear no CR em ambos os períodos não esteja relacionado ao seu sabor, e sim a outros fatores, como, por exemplo, à estrutura, à textura ou à consistência que a glicerina proporcionou à ração.…”