scholarly journals Dietary Supplementation of Leucine in Premating Diet Improves the Within-Litter Birth Weight Uniformity, Antioxidative Capability, and Immune Function of Primiparous SD Rats

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Ting Liu ◽  
Bin Zuo ◽  
Wei Wang ◽  
Shilan Wang ◽  
Junjun Wang

The high within-litter birth weight variation has become a big issue in multiparous animals. The present study was conducted to investigate the effects of leucine supplementation in premating diet on the reproductive performance, maternal antioxidative capability, and immune function in primiparous rats. Six-week-old female SD rats were assigned to basal diet or 0.6% leucine supplemented diet for two weeks. After mating during the eighth week of age, the rats were fed with regular gestation diet. Maternal blood samples were collected on the day before mating (day −1) and day 7 and day 20 of pregnancy, while ovaries and uteruses were obtained on day −1 and on day 7, respectively. The results indicate that, compared with control group, within-litter birth weight variation was significantly decreased, while birth weights were significantly increased in the leucine group (P<0.01). Also, leucine improved the embryo distribution uniformity and the number of implantation sites in uterine. The ovarian gene expressions of LHR, CYP19A1, and VEGFA were upregulated, while Mucin-1 was decreased significantly (P<0.05). Leucine also increased the maternal antioxidant capacity and immune function. Conclusively, leucine supplementation in premating diet could improve the reproductive performance, which could be attributed to the improved oxidative and immune status.

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Cuiping Feng ◽  
Taolin Yuan ◽  
Shilan Wang ◽  
Ting Liu ◽  
Shiyu Tao ◽  
...  

Within-litter birth weight variation in multiparous animals has become a big issue due to high incidence of low birth weight neonates, which gives rise to high preweaning mortality and morbidity. Foetus with various birth weights is the outcome of diverse embryos competence which is affected by oocyte quality. Glucosamine (GlcN) has been reported to be involved in oocyte maturation; however, its effect on pregnant outcomes remains unknown. The present study was conducted to investigate the effects of premating GlcN supplementation via drinking water on within-litter birth weight variation and its underlying mechanism. Fifty eight Sprague-Dawley female rats were randomly assigned to one of two groups with normal drinking water or drinking water supplemented with 0.5 mM GlcN from six to eight weeks old. Variation of within-litter birth weight in the GlcN group was 5.55%, significantly lower compared with 8.17% in the control group. Birth weight was significantly increased in the GlcN group (2.27 ± 0.06) compared with the control group (2.08 ± 0.04). Both absolute and relative weights of the ovary at the end of GlcN treatment were higher in the GlcN group than in the control group (P<0.05). In the GlcN group, there were more successfully implanted blastocysts (13.38 ± 0.63 and 15.75 ± 0.59 in the control and treatment group, respectively) with more uniform distribution along the two uterine horns compared with the control group. Besides, gene expressions of Alk3 and Bmp2 were increased in the implantation sites, while IGF-1 and Mucin-1 were decreased significantly in rats administrated with GlcN. Maternal progesterone, estradiol, and IGF-1 concentrations on D 19.5 were significantly increased, while insulin and total cholesterol levels were significantly decreased in contrast with control dams. In summary, the administration of 0.5 mM GlcN solution before mating reduced within-litter birth weight variation, accompanied with increased fetal weight. Further investigation indicated that the improved outcome of pregnancy results at least partly from the increased ovary weights of the rats, the homogeneous embryo developmental competence, the enhanced receptivity of the uterine environment, and the adjusted maternal hormone levels.


2019 ◽  
Vol 41 (4) ◽  
Author(s):  
Hoang Nghia Son

This study aimed to evaluate the effects of nano mineral-supplemented diet on sow productivity. The data were estimated by several parameters consisting of piglet live ratio at newborn stage and weaning stage, piglet weight at newborn stage and weaning stage, metal content in piglet livers. The results showed that live ratio of newborn piglets in group III was highest (93.44 ± 2.83%) comparing with other groups. However, there was no significant difference of live ratio in piglets at weaning stage between nano mineral-supplemented groups with control. The birth weight of piglets in nano mineral-supplemented groups was similar to control group. The birth weight of piglets in nano mineral-supplemented groups was ranged from 1,361.61 ± 47.37 grams (group II) to 1,410.48 ± 44.28 grams (group I). However, the average weight of weaned pigs in groups III and IV was higher than other groups (6,772.92 ± 105.47 grams and 6,818.87 ± 89.59 grams). Moreover, the amount of Fe, Cu, Zn, Mn in piglet liver from nano mineral-supplemented groups have been found to be lower than those in control group. These results revealed that the supplement of nano minerals for sows promoted the reproductive performance of sows and reduced mineral content in the liver of piglets. 


2014 ◽  
Vol 997 ◽  
pp. 178-184
Author(s):  
Hong Ling Wang ◽  
Yu Hong Yang ◽  
Jia Qing Wang ◽  
Zhuo Wang ◽  
Shuang Ma

This study aimed to investigate the efficacy of compound probiotics on broiler performance, intestinal microflora, immune function and serum biochemical indicators. Four hundred one-d-old female broiler chickens were randomly divided into 4 groups with 4 replicates in each group and 25 chickens per replication. The chickens in groupI(control group) were fed a basal diet, experimental groups II, III and IVwere fed the basal diet supplemented with 0.1%, 0.2% and 0.4% compound probiotics. The results of this work were as follows: (1) during the experimental period, compared with control group, the average daily in group III was significantly increased (P<0.05), the feed/gain and average daily feed intake were significantly lower (P<0.05); (2) at the age of 14 and 28 days, the number of cecal Lactic acid in group II and III were significantly higher than the control (P<0.05) and the content of E.coli has the opposite results. (3) the anti-body titer in group III was the highest, and significantly higher compared to the control (P<0.05), but there were no significantly differences between group IV and control group (P>0.05). (4) serum biochemical indexes of broilers in group III and IVwere significantly increased than that in control group (P<0.05). In conclusion, the supplementation of 0.2% compound probiotics could promote the growth performance, improve the cecal mico-ecosystem, enhance the anti-body titer and biochemical indexes in serum.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Mingxin Li ◽  
Lidong Zhai ◽  
Wanfu Wei

Rheumatoid arthritis, a synthesized form of adjuvant arthritis exhibited throughout many animal species, inhibits liver function and circulation of IGF-I and contributes to the degradation of skeletal muscle mass. One of the primary goals of the present study is determining whether a high-Methionine (high-Met) diet is capable of reducing the adverse effects of arthritis, namely, loss of body mass. Following adjuvant injection, forty arthritic rats were randomly assigned to either a control group with a basal diet or a high-Met group with the same basal diet + 0.5% Methionine. After 14 days all rats were terminated. The high-Met group exhibited an increase in body weight and food intake in comparison with the control group (P<0.05). High-Met diet debilitated arthritis-induced surges in the gastrocnemius in both atrogin-1 and the MuRF1 expressions; however, it was observed to have little to no effect on atrogin-1 and MuRF1 gene expression in soleus. At the same time, high-Met diet rats experienced a rise in IGF-I, with lowering of IGFBP-3 gene expression in the gastrocnemius and the soleus. These data suggest that arthritis severity can be partly attenuated by high-Met diet.


2021 ◽  
Author(s):  
Chunnuan Zhang ◽  
Yuheng Wang ◽  
Hongtao Ren ◽  
Junhui Wang ◽  
Dongxue Jiang ◽  
...  

Abstract The objective of this study was to determine the effects of quercetin on oxidative stress and apoptosis induced by TPT in zebrafish. 240 fish were divided into 4 groups with three repeats. D1: fish fed with the basal diet as the control group. D2: fish fed with basal diet and exposed in 10 ng/L TPT. D3: fish fed diets containing 100 mg/Kg quercetin and exposed in 10ng/L TPT. D4: fish fed diets containing 100 mg/Kg quercetin. The results showed that quercetin could ameliorate oxidative stress, which decreased MDA, NO levels and improved antioxidant enzyme activities. The key apoptotic gene expressions, including caspase3, Bax and caspase9 mRNA expression were significantly induced by TPT exposure as compared with the control group, while notably decreased the Bcl-2 gene. However, dietary quercetin prevented a significant increase in Bax, caspase3 and caspase9 mRNA levels induced by TPT exposure, but increased Bcl-2 mRNA levels. The results of our study also demonstrated that 10 ng/L TPT significantly up-regulated TNF-α, IL-1β, IL-8, and NF-kB p65 gene expression and down-regulated IL-10 and IkB expression compared to the control group. However, TPT-induced inflammation was significantly mitigated in the quercetin treatment group. In conclusion, our findings suggested that quercetin might alleviate hepatic oxidative damage and apoptosis induced by TPT.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 476-477
Author(s):  
Shenfei Long ◽  
Tengfei He ◽  
Di Wu ◽  
Xiangshu Piao

Abstract Lactating sows face various stresses, leading to poor reproductive performance and high mortality in piglets. Previous studies have demonstrated Forsythia suspensa extract (FSE) has antioxidant and antibacterial functions in broilers and piglets. However, rare researches focus on the effect of FSE in lactating sows. Therefore, this experiment was conducted to investigate dietary FSE supplementation on performance, antioxidant status and immunity in sows and piglets. 24 healthy Yorkshire × Landrace sows (average body weight of 234 ± 6.81 kg; average parity of 3.38 ± 0.61) were allotted into 2 dietary treatments with 12 sows per treatment based on parity, back fat thickness and body weight. Sows were fed a corn-soybean meal basal diet (CON), or a FSE diet (basal diet+100 mg/kg FSE) from d 107 of gestation until d 21 of lactation. Compared with CON, sows fed FSE showed decreased (P &lt; 0.05) estrus interval, body weight loss from farrowing to weaning, and increased (P &lt; 0.05) average daily gain from d 7 to 21 in piglet, as well as enhanced (P &lt; 0.05) lactose, fat and protein contents on d 14, and IgA level on d 7 in milk. These sows also had increased (P &lt; 0.05) T-AOC content, reduced (P &lt; 0.05) MDA content in placenta, and improved (P &lt; 0.05) serum T-AOC, GSH-Px and CAT contents at farrowing and weaning. Their piglets behaved higher (P &lt; 0.05) SOD content and lower (P &lt; 0.05) MDA content in serum on d 0, 7, 14, as well as increased (P &lt; 0.05) serum T-AOC and GSH-Px contents on d 21. These piglets also had higher villus height and villus height to crypt depth ratio in jejunum on d 21 compared with CON. In conclusion, dietary FSE supplementation improved performance, antioxidant status and immune function in lactating sows and suckling piglets.


2019 ◽  
Vol 97 (10) ◽  
pp. 4256-4267 ◽  
Author(s):  
Jinchao Chen ◽  
Qingqing Xu ◽  
Yunxia Li ◽  
Zhiru Tang ◽  
Weizhong Sun ◽  
...  

Abstract This study was conducted to compare the effects of adding sodium butyrate (SB), medium-chain fatty acids (MCFAs), or n-3 polyunsaturated fatty acids (n-3 PUFAs) to the diet of sows during late gestation and lactation on the reproductive performance of sows and the growth performance and intestinal health of suckling piglets. Twenty-four sows (Landrace × Large-White hybrid; third parity; 200 ± 15 kg) were randomly assigned to receive 1 of 4 diets: basal diet (control group), basal diet + 1 g SB/kg (SB group), basal diet + 7.75 g MCFA/kg (MCFA group), or basal diet + 68.2 g n-3 PUFA/kg (n-3 PUFA group). The experiment began on day 85 of gestation and ended day 22 of lactation. Colostrum samples were collected from each sow. After the experiment, blood and tissue samples were collected from 1 randomly selected piglet. The results showed that the weaning-to-estrus interval of sows in the SB, MCFA, and n-3 PUFA groups was shorter than that of sows in the control group (P < 0.05). The incidence of diarrhea in suckling piglets in the SB, MCFA, and n-3 PUFA groups was lower than that of piglets in the control group (P < 0.05). The fat, protein, IgA, IgG, and IgM concentration in colostrum from sows increased following dietary supplementation with SB, MCFA, or n-3 PUFA (P < 0.05). Comparison with the control group, the mRNA expression of claudin-1, zona occludens 1, and interleukin-10 increased in the jejunum mucosa of suckling piglets in the SB, MCFA, and n-3 PUFA groups, while that of TLR4 decreased (P < 0.05). Compared with the control group, the Chao1 and ACE indexes of microbial flora in the colon contents of piglets in the SB, MCFA, and MCFA groups increased (P < 0.05), while the relative abundance of Firmicutes, Actinobacteria, and Synergistetes decreased at the phylum level (P < 0.05). In conclusion, during late pregnancy and lactation, dietary SB supplementation had a greater effect on intestinal health and caused a greater decrease in preweaning mortality of suckling piglets than did dietary MCFA or n-3 PUFA supplementation; dietary MCFA supplementation shortened the weaning-to-estrus interval of sows to a greater extent than did dietary SB or n-3 PUFA supplementation; and dietary n-3 PUFA supplementation increased the fat and protein content in the colostrum to the greatest extent.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 219-220
Author(s):  
Xin Gao ◽  
Qiong Hu ◽  
Lawrence Chan ◽  
Cally Ma ◽  
Junmei Zhao

Abstract The beneficial effects of dietary fiber on sows performance have been widely studied, but it’s still unclear how fermentable fiber affects sows glucose metabolism and reproduction. The present study aimed to investigate the effects of late gestational inulin supplementation on sows pre-farrowing glucose metabolism and reproductive performance. A total of 106 sows were allotted randomly to 2 groups, receiving either a control diet with 4% wheat flour, or a diet with 4% inulin, from gestation day 85 to 110, both diets met nutrient requirements expressed by NRC. On day 111, sows blood glucose was tested before a common lactation diet meal, then subsequent glucose levels were measured at 1, 2 and 3 hour after meal. Sows were weighed on initial, entry and weaning days. The numbers of live-born and stillborn piglets as well as mortality were recorded. Inulin supplementation didn’t affect sows average daily intake during lactation, and also no significant difference was observed in weaning bodyweight and backfat thickness between two groups. However, the relative wean to entry BW loss was significantly lower in inulin fed sows than control (11.3% vs 13.5%) (P&lt; 0.05). Moreover, postprandial glucose response was less steep in inulin group compared with control, especially glucose concentration at 1h after meal was 10.2% higher in the control group sows. Although the sows farrowing duration was similar in two groups, inulin significantly increased (P&lt; 0.05) proportion of born alive from 90.1% to 93.0% and reduced (P=0.10) still born from 7.3% to 5.4%. Post-foster mortality and livability did not differ between treatments, litter birth weight and average birth weight were not different either. In conclusion, Sows fed 4% inulin diet at late gestation tended to have lower weight loss, slower rate of postprandial blood glucose response and higher born alive and lower stillborn.


2021 ◽  
Vol 99 (10) ◽  
Author(s):  
Xiaorong Yu ◽  
Chunsheng Fu ◽  
Zhenchuan Cui ◽  
Guangyong Chen ◽  
Yinglei Xu ◽  
...  

Abstract Constipation in gestating and lactating sows is common and the inclusion of dietary fiber may help to alleviate this problem. We investigated the effects of inulin (INU) and isomalto-oligosaccharide (IMO), two sources of soluble dietary fiber, on gastrointestinal motility-related hormones, short-chain fatty acids (SCFA), fecal microflora, and reproductive performance in pregnant sows. On day 64 of gestation, 30 sows were randomly divided into three groups and fed as follows: a basal diet, a basal diet with 0.5% INU, and a basal diet with 0.5% IMO. We found that INU and IMO significantly modulated the levels of gastrointestinal motility-related hormones, as evidenced by an increase in substance P (P &lt; 0.05), and a decrease in the vasoactive intestinal peptide concentrations (P &lt; 0.05), indicating the capacity of INU and IMO to alleviate constipation. Furthermore, IMO enhanced the concentrations of acetic, propionic, isobutyric, butyric, isovaleric, and valeric acids in the feces (P &lt; 0.05). High-throughput sequencing showed that IMO and INU increased the fecal microflora α- and β-diversity (P &lt; 0.05). Methanobrevibacter was more abundant (P &lt; 0.05), whereas the richness of Turicibacter was lower in the INU and IMO groups than in the control group (P &lt; 0.05). In addition, IMO significantly increased litter size (P &lt; 0.05). Overall, our findings indicate that INU and IMO can relieve constipation, optimize intestinal flora, and promote reproductive performance in pregnant sows.


2020 ◽  
Vol 98 (12) ◽  
Author(s):  
Daolin Mou ◽  
Dajiang Ding ◽  
Shuang Li ◽  
Hui Yan ◽  
Binting Qin ◽  
...  

Abstract Selenium (Se) is an essential trace element for animals and exists in nature in both inorganic and organic forms. Although organic Se is more bioavailable than inorganic Se, there are inconsistent reports on the effect of organic Se on the reproductive performance of sows. This study was conducted to investigate the effect of maternal organic Se (2-hydroxy-4-methylselenobutanoic [HMSeBA]) supplementation on reproductive performance and antioxidant capacity of sows, and the long-term effect on the growth performance and antioxidant capacity of their offspring with or without lipopolysaccharide (LPS) challenge. The experimental design used in this study was a completely randomized design; 45 Landrace × Yorkshire sows were randomly allocated to receive one of the following three diets during gestation: control diet (Control, basal diet, n = 15), sodium selenite (Na2SeO3)-supplemented diet (Na2SeO3, basal diet + 0.3 mg Se/kg Na2SeO3, n = 15), and HMSeBA-supplemented diet (HMSeBA, basal diet + 0.3 mg Se/kg HMSeBA, n = 15). On day 21 of age, male offspring from each group were injected with LPS or saline (n = 6). As compared with the control group, maternal HMSeBA supplementation increased the number of total born piglets, while decreased birth weight (P &lt; 0.05). In the first week of lactation, maternal HMSeBA supplementation increased litter weight gain compared with the Na2SeO3 group (P &lt; 0.05) and increased the average daily gain of piglets compared with the control group and Na2SeO3 group (P &lt; 0.05). Meanwhile, maternal HMSeBA supplementation decreased piglet birth interval as compared with the control group and Na2SeO3 group (P &lt; 0.05). Besides, plasma glutathione peroxidase (GSH-Px) activity was higher in the HMSeBA group on farrowing 0 min and 90 min, while malondialdehyde (MDA) concentration was lower on farrowing 0, 90, and 135 min than those in the control group (P &lt; 0.05). In addition, maternal HMSeBA supplementation increased the concentration of selenoprotein P (SELENOP) in colostrum compared with the control group (P &lt; 0.05). Further study revealed that the LPS-challenged HMSeBA group had higher GSH-Px and total antioxidant capacity and lower MDA in weaning piglets compared with the LPS-challenged control group (P &lt; 0.05). Taken together, maternal HMSeBA supplementation increased the number of total born piglets, shortened the duration of farrowing, improved the antioxidant capacities of sows and their offspring, and improved the growth performance of suckling pigs at the first week of lactation. Thus, HMSeBA supplementation during gestation has the potentiality to produce more kilogram of meat.


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