Heat production in growing pigs fed rapeseed
meal with various glucosinolate contents

Thirty six Landrace pigs from 60 to 110 kg liveweight were given diets of similar available lysine and metabolizable energy contents. The feed mixtures contained an average of 16% soya bean meal (SBM) or 21 % rapeseed meal (RSM) of a double-low variety (8.7 moles glucosinolates per g fat-free dry matter). Energy retention in the body was measured by the comparative slaughter technique. The weight of the internal organs and thyroid gland and T 3 and T 4 hormone concentrations in blood samples taken at slaughter were also determined.The weight of the thyroid and liver were 55 % (P ^ 0.001) and 16% (P ^ 0.001) higher, respectively, in the animals fed RSM. The RSM diet caused no significant difference in the chemical composition of the body gain, blood T 3 and T 4 levels as in the weight of the kidneys. The maintenance requirement and energy cost of protein deposition in the body of pigs did not differ between the groups (511 kJ/kg 0 75 /d and 68 kJ/g, respectively).

show abstract

“…We previously found similar changes in our own studies (Fandrejewski et al, 1994;Raj et al, 1990) as have others (e.g. Thomke, 1984).…”

Section: Resultssupporting

confidence: 92%

“…A study of the use of rapeseed meal (RSM) in the feeding of pigs (Fandrejewski et al, 1994) showed that animals fed a diet containing RSM had a tendency to increased heat production.…”

Section: Introductionmentioning

confidence: 99%

Energy metabolism in growing-finishing pigs fed rapeseed meal

Chabiera¹,

Fandrejewski²,

Kotrabińska³

et al. 1994

J. Anim. Feed Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In pigs fed RSM together with RS, the increase in thyroid, liver and kidney weight and decrease in secretion of T 3 and T 4 were not, however, directly proportional to GL intake. In comparison with the results of our previous experiments (Chabiera et al, 1994;Fandrejewski et al, 1994) on feeding RSM to fattening pigs, a weaker goitrogenic response to an increase of the GL level in the ration was found (from 2.1 to 7.3 mM/d). This was all the more surprising since along with the seeds, myrosinase (Bille et al, 1983a) was probably also introduced into the digestive tract of the animals.…”

Section: Discussionsupporting

confidence: 60%

“…This was accompanied by hypertrophy of the thyroid gland, liver and kidneys in all animals, even those in group RS-0. In spite of the lack of the control group fed on rape-free diet in this experiment, this statement can be based on previous experiments by Fandrejewski et al (1994) carried out on pigs from the same herd, in which a high dependence between thyroid and internal organ size and glucosinolate intake of animals was found. It was calculated that the weight of the pigs in group RS-0, receiving the least GL (2.1 mM/d) was also elevated (by about 30% in comparison to animals that did not receive glucosinolates).…”

Section: Discussionmentioning

confidence: 84%

See 1 more Smart Citation

The efficiency of energy and protein utilization by growing pigs fed diets containing both full-fat rape seeds and rapeseed meal

Raj¹,

Kotarbinska²,

Fandrejewski³

et al. 1995

J. Anim. Feed Sci.

Self Cite

View full text Add to dashboard Cite

Twenty-four Polish Landrace pigs (12 gilts and 12 barrows) fattened from 30 to 95 kg body weight were fed diets containing 18% rapeseed meal (RSM) and full-fat rape seeds (RS) in the following amounts: 0 (group RS-0), 10 (group RS-10) or 20% (group RS-20). The pigs were fed on an individual basis with rations having equal energy, protein and lysine contents. Nitrogen balance was determined at 40, 60 and 80 kg liveweight. Metabolizable energy and protein utilization were determined by the slaughter technique. The thyroid gland, liver and kidneys were weighed and plasma T 3 and T 4 levels assayed. Nitrogen retention was on average 12 and 17% lower (P< 0.01) in groups RS-10 and RS-20 than in RS-0; the negative effect of rape seeds on nitrogen utilization intensified as fattening progressed. Metabolizable energy utilization in pigs receiving 20% RS was 2.5 and 3.4% worse (P <0.05) than in groups RS-10 and RS-0, respectively. As glucosinolates intake increased, the weight of the internal organs rose and T 3 and T 4 levels declined. These changes were not, however, proportional to the amount of glucosinolates intake. The combined use of RSM and RS in the diets of growing pigs had an unfavourable effect on protein and energy utilization.

show abstract

Increasing levels of rapeseed expeller meal in diets for pigs: effects on protein and energy metabolism

Nanclares

Marcussen

Tauson

et al. 2019

animal

View full text Add to dashboard Cite

The heavy reliance on imported soybean meal (SBM) as a protein source makes it necessary for the European pig industry to search for alternatives and to develop pigs that perform efficiently when fed such ingredients. Digestion and metabolism are major physiological processes contributing to variation in feed efficiency. Therefore, an experiment was conducted to assess the effects of replacing SBM with increasing levels of rapeseed meal (RSM) in diets for young pigs on apparent total tract digestibility (ATTD) of energy and nutrients, nitrogen (N) balance, energy metabolism and carbohydrate, protein and fat oxidation. Four diets were fed to 32 pigs (22.7±4.1 kg initial BW) for three weeks. The diets consisted of a control cereal grain-SBM basal diet and three test diets where SBM and wheat were partially replaced with 10%, 20%, and 30% of expeller RSM. Increasing level of RSM in the diets linearly reduced ATTD of organic matter, CP, total carbohydrates, dietary fiber and energy. Utilization of digested nitrogen (DN) for N retention and total N excretion were not affected by RSM inclusion, however, RSM inclusion induced a shift in N excretion from urine to feces. Despite a linear increase in liver to metabolic BW ratio, heat production and utilization of metabolizable energy (ME) for retention were not affected by increasing RSM inclusion. In conclusion, replacing SBM with up to 30% of expeller RSM in nutritionally balanced diets for young pigs reduced the ATTD of most nutrients and energy, but did not affect N and energy retention in the body or efficiency of utilization of DN or ME for retention.

show abstract

Heat production in growing pigs fed rapeseed meal with various glucosinolate contents

Cited by 3 publications

References 13 publications

Energy metabolism in growing-finishing pigs fed rapeseed meal

Energy metabolism in growing-finishing pigs fed rapeseed meal

The efficiency of energy and protein utilization by growing pigs fed diets containing both full-fat rape seeds and rapeseed meal

Increasing levels of rapeseed expeller meal in diets for pigs: effects on protein and energy metabolism

Contact Info

Product

Resources

About