Investigating the effects of replacing lactose with rice syrup on piglet growth, hormone levels, and insulin-like growth factor axis.

This article aims to study the effects of rice syrup replacing lactose on the production performance and insulin-like growth factor axis of early weaning piglets. Thirty-two binary crossbred piglets (Landrace The dietary ingredients were the same except for the lactose level (43.5% in the lactose group and 0% in the rice syrup group). During the 14th day of the test, the test pigs were weighed on the 7th, 14th and 21st days after fasting for 8 hours. The daily weight gain and daily food consumption during the test period were calculated, and each group was randomized on the 7th and 14th days of the test respectively. Five heads were extracted, blood was collected from the jugular vein, and the liver and longissimus dorsi muscle tissue were quickly harvested after slaughter. The results showed that replacing lactose with rice syrup had no significant effect on the daily weight gain and meat-to-feed ratio of piglets (ª«P>ª«0.05). There was no significant difference in serum GH levels between the 14-day rice syrup group and the lactose group (ª«P>ª«0.05). , the 21d serum GH level of the rice syrup group was extremely significantly lower than that of the lactose group (ª«P<ª«0.01); however, the 14d and 21d serum IGF-I levels of the rice syrup group, and the relative expression of IGFª²ImRNA in the liver and longissimus dorsi muscle were significantly different from those of the lactose group (ª«P<ª«0.01). There were no significant differences among the lactose groups (ª«P>ª«0.05). Comprehensive analysis shows that replacing lactose with rice syrup has no effect on the growth performance and insulin-like growth factor axis of early weaned piglets. ª£

Introduction:

This article presents a comprehensive investigation into the impact of substituting lactose with rice syrup in the diets of early weaning piglets on their growth performance and the insulin-like growth factor (IGF) axis. Conducted with thirty-two binary crossbred piglets (Landrace), this study is pivotal for understanding dietary modifications and their repercussions on livestock development and hormonal balances. The primary distinction between the control and experimental groups was the substitution of lactose (43.5%) with rice syrup (0%) in their diets. To evaluate the effects of this dietary change, the piglets were monitored over a 21-day period with assessments on the 7th, 14th, and 21st days following an 8-hour fasting period. These assessments included measurements of daily weight gain and food intake.

Experimental Design:

The study meticulously recorded the physiological responses to the dietary switch by collecting blood samples from the jugular vein and extracting liver and longissimus dorsi muscle tissues post-slaughter at designated intervals. This approach allowed for a detailed analysis of growth hormone (GH) levels and the expression of insulin-like growth factor I (IGF-I) and its mRNA in the tissues examined.

Growth and Hormonal Analysis:

Interestingly, the findings revealed that the substitution of lactose with rice syrup did not significantly influence the daily weight gain or the feed-to-meat ratio of the piglets, suggesting that rice syrup can serve as an effective dietary carbohydrate source without adversely affecting growth performance. Furthermore, the study found no significant difference in serum GH levels between the groups on the 14th day. However, a noteworthy observation was the significantly lower serum GH levels in the rice syrup group compared to the lactose group on the 21st day, indicating a potential long-term impact of dietary sugars on GH regulation.

Dietary Impact on Growth:

Moreover, while the 14th and 21st-day serum levels of IGF-I and the relative expression of IGF-II mRNA in both liver and longissimus dorsi muscle tissues exhibited significant differences compared to the lactose group, these changes did not translate into differences in growth performance among the groups. This suggests that while the insulin-like growth factor axis may be influenced by the type of dietary carbohydrate, this does not necessarily correlate with noticeable changes in physical growth or feed efficiency in early weaned piglets.

Findings and Future Directions:

In conclusion, this study provides valuable insights into the nutritional management of weaning piglets, indicating that rice syrup could be a viable alternative to lactose without compromising growth performance or overall health. It also highlights the complex interactions between diet, growth hormones, and the IGF axis, underscoring the need for further research to fully understand the implications of dietary modifications on the physiological development of livestock. The findings contribute significantly to the fields of animal nutrition and agricultural science, offering practical applications and directions for future studies.

For futher details of this article and research, feel free to contact our team for assistance.

About ETprotein:

ETprotein, a reputable plant protein vegan protein Chinese factory manufacturer and supplier, is renowned for producing, stocking, exporting, and delivering the highest quality organic bulk vegan protein and plant proteins. They include Organic rice protein, clear rice protein, pea protein, clear pea protein, oat protein, watermelon seed protein, pumpkin seed protein, sunflower seed protein, mung bean protein, peanut protein, various of plant peptides etc. Their offerings, characterized by a neutral taste, non-GMO, allergen-free attributes, cater to a diverse range of industries. They serve nutraceutical, pharmaceutical, cosmeceutical, veterinary, as well as food and beverage finished product distributors, traders, and manufacturers across Europe, USA, Canada, Australia, Thailand, Japan, Korea, Brazil, and Chile, among others.

ETprotein specialization includes exporting and delivering tailor-made protein powder and finished nutritional supplements. Their extensive product range covers sectors like Food and Beverage, Sports Nutrition, Weight Management, Dietary Supplements, Health and Wellness Products, and Infant Formula, ensuring comprehensive solutions to meet all your protein needs.

As a trusted company by leading global food and beverage brands and Fortune 500 companies, ETprotein reinforces China’s reputation in the global arena. For more information or to get a free sample of their protein products, please contact them and email sales(at)ETprotein.com today.