Effect of substitution of corn for molasses in diet on growth performance, nutrient digestibility, blood characteristics, fecal noxious gas emission, and meat quality in finishing pigs

Abstract

-The objective of this experiment was to evaluate the effect of molasses as a substitute for corn in diet on growth performance, nutrient digestibility, blood characteristics, fecal noxious gas emission, and meat quality in finishing pigs. A total of 120 [(Landrace × Yorkshire) × Duroc] pigs with an average initial body weight (BW) of 54.21±2.62 kg were used in this experiment. Pigs were randomly assigned to 1 of the 3 dietary treatments on the basis of BW and sex (10 replicate pens per treatment with four pigs per pen: two gilts and two barrows in each pen). The experiment was divided into two phases: 0-5 weeks and 6-10 weeks. Dietary treatments were as follows: control, basal diet; control + 2.5% cane molasses; and control + 5% cane molasses. No significant differences were observed in terms of growth performance, nutrient digestibility, red blood cells, and white blood cells in blood characteristics, fecal noxious gas emission, and meat quality in this study. However, blood lymphocytes were higher with control + 2.5% cane molasses than with control at the end of the 10th week. Molasses can be considered an alternative for corn at the level of 2.5% without any negative influence in finishing pigs.

THE PROXIMATE COMPOSITION AND METABOLITE PROFILING OF SUGARCANE (Saccharum officinarum) MOLASSES

“…While analyzing the crude protein content, the result showed that sugarcane molasses had a low value presented at only 2.00±0.0%. is the protein content of sugarcane molasses found by this study seems to be the lowest when compared to the previous studies by Ogunwole et al (2020) and Sureshkumar et al (2016), which documented the value of crude proteins of 4.38% and 3%, respectively. According to Curtin (1983), molasses contains a low amount of nitrogen which consists of non-protein nitrogen compounds including amides, albuminoids, and amino acids.…”

Effect of partially replacing corn with sugar cane molasses on blood parameters and composition of the M. longissimus thoracis of growing pigs

“…The samples were then centrifuged at 7,000 g for 5 min. The resulting serum was frozen at -20°C in microtubes (Eppendorf, Hamburg, Germany) for further blood parameter analysis (7,14) . The levels of high-density cholesterol (HDL), total cholesterol, triglycerides, urea, albumin, and gamma-glutamyl transferase (GGT) in the serum were analyzed in duplicate using a colorimetric method with commercial kits (Labtest, Lagoa Santa, MG, Brazil).…”

“…In addition, the difficulty of mixing limits the use of high levels of molasses in the diet (6) . A previous study showed that sugar cane molasses can be used to replace corn in the diet of finishing pigs up to 5% without affecting performance, nutrient digestibility, blood metabolites, fecal noxious gas emission, and meat quality (7).…”

“…The conversion of glucose into triglycerides, called lypogenisys, provides at least 80% of the fatty acids deposited in pigs (11) . However, one of the main factors influencing the deposition of fatty acids, as well as their profiles, is the nutrition that animals receive during the rearing process (7) ; consequently, changes in the nutrition of pre-slaughtered animals can modify this scenario, thereby changing the fatty acid composition of the meat (9) .…”

Efeito da substituição parcial do milho por melaço de cana-de-açúcar sobre parâmetros sanguíneos e a composição do músculo longissimus thoracis de suínos em crescimento

“…Além disso, a dificuldade de mistura limita a utilização de níveis elevados de melaço na dieta (6) . Um estudo anterior mostrou que o melaço de cana-de-açúcar pode ser utilizado a´te o nível de 5% para substituir o milho na dieta de terminação de suínos sem afectar o desempenho, a digestibilidade dos nutrientes, os metabólitos do sangue, a emissão de gases nocivos fecais e a qualidade da carne (7) . Os produtos de carne suína têm sido associados a uma imagem pouco saudável devido às proporções relativas dos ácidos graxos polinsaturados e saturados (8) .…”