Tomato pulp baled silage for feeding game
Main Article Content
Abstract
The aim of the study was to determine the nutrient content, fermentation quality and microbial status of wet
tomato pulp silage after applying different treatments in two consecutive years. In the first year, dried whole
seed wheat (20% based FM) was applied in order to reduce the hazard of effluent production and undesirable
fermentation processes and to increase energy content of tomato pulp. Ensiling was carried out in metal
barrels/treatment with a capacity of 150-180 kg/barrel. In the second year, dried ground corn (20%) was
applied for the same reasons as before and to increase nutritive value of the by-product. In the first year, the
applied dried whole seed wheat (used at 20%) increased the net energy content for maintenance of tomato
pulp, which has an important role in game feeding during the winter (roe deer and red deer, wild boar). The
calculated lactation net energy content was similar to a maize silage harvested with approx. 25-30% starch
content. Mixing of 20% dried whole seed wheat reduced significantly the acetic acid (P≤0.05), the volatile
fatty acid (P≤0.05) concentration, while increased the lactic: acetic acid ratio in the core of the silages as
compared to T2 (T2: 1.72±0.07 vs T3: 3.25±0.09). A lower fermentation intensity was found in combination
with a better organic acid profile, presumably due to a higher DM content in 20% wheat treatment as
compared to tomato pulp. However, it is not recommended to add whole seed to the wet by-product due to
the negative effect on the top 1-20 cm layer. In the second year, low fermentation intensity was found in the
control tomato pulp (20% corn) baled silage, as well as an undesirable fermentation process was found in the
case of 0,5% salt treatment in the mixed tomato pulp baled silage. Therefore, application of salt is not
recommended. Inoculation effectively inhibited the production of butyric acid and reduced the protein loss by
6 % as compared to the control, therefore it is highly recommended to apply as silage inoculant during the
ensilage of the wet by-product. In summary, it was confirmed that the new baling system was able to form
well-shaped and stable bales. High density, quick wrapping (within 120 sec after bale-forming), had a
beneficial effect on fermentation quality. The study showed that wet tomato pulp had a limited fermentation
capacity, but under anaerobic conditions it was possible to store for long term (100 days) with a good
microbial status. It is recommended to use dried ground cereal as an additive (20%) to increase dry matter
and energy content, moreover to improve volatile fatty acid composition of the wet tomato pulp silage.
tomato pulp silage after applying different treatments in two consecutive years. In the first year, dried whole
seed wheat (20% based FM) was applied in order to reduce the hazard of effluent production and undesirable
fermentation processes and to increase energy content of tomato pulp. Ensiling was carried out in metal
barrels/treatment with a capacity of 150-180 kg/barrel. In the second year, dried ground corn (20%) was
applied for the same reasons as before and to increase nutritive value of the by-product. In the first year, the
applied dried whole seed wheat (used at 20%) increased the net energy content for maintenance of tomato
pulp, which has an important role in game feeding during the winter (roe deer and red deer, wild boar). The
calculated lactation net energy content was similar to a maize silage harvested with approx. 25-30% starch
content. Mixing of 20% dried whole seed wheat reduced significantly the acetic acid (P≤0.05), the volatile
fatty acid (P≤0.05) concentration, while increased the lactic: acetic acid ratio in the core of the silages as
compared to T2 (T2: 1.72±0.07 vs T3: 3.25±0.09). A lower fermentation intensity was found in combination
with a better organic acid profile, presumably due to a higher DM content in 20% wheat treatment as
compared to tomato pulp. However, it is not recommended to add whole seed to the wet by-product due to
the negative effect on the top 1-20 cm layer. In the second year, low fermentation intensity was found in the
control tomato pulp (20% corn) baled silage, as well as an undesirable fermentation process was found in the
case of 0,5% salt treatment in the mixed tomato pulp baled silage. Therefore, application of salt is not
recommended. Inoculation effectively inhibited the production of butyric acid and reduced the protein loss by
6 % as compared to the control, therefore it is highly recommended to apply as silage inoculant during the
ensilage of the wet by-product. In summary, it was confirmed that the new baling system was able to form
well-shaped and stable bales. High density, quick wrapping (within 120 sec after bale-forming), had a
beneficial effect on fermentation quality. The study showed that wet tomato pulp had a limited fermentation
capacity, but under anaerobic conditions it was possible to store for long term (100 days) with a good
microbial status. It is recommended to use dried ground cereal as an additive (20%) to increase dry matter
and energy content, moreover to improve volatile fatty acid composition of the wet tomato pulp silage.
Article Details
How to Cite
Galló, Judit, Szilvia Orosz, László Szemethy, Zsolt Szabó, and Szilveszter Kazinczy. 2012. “Tomato Pulp Baled Silage for Feeding Game”. Review on Agriculture and Rural Development 1 (1. suppl.):238-43. https://ojs.bibl.u-szeged.hu/index.php/rard/article/view/13212.
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