Bengbu Heping Dairy Industry Co.

Bengbu, China

Bengbu Heping Dairy Industry Co.

Bengbu, China
SEARCH FILTERS
Time filter
Source Type

Liu D.-Y.,Anhui Science and Technology University | He S.-J.,Anhui Science and Technology University | Liu S.-Q.,Bengbu Heping Dairy Industry Co. | Tang Y.-G.,Bengbu Heping Dairy Industry Co. | And 4 more authors.
Animal Science Journal | Year: 2014

Heat stress decreases natural immunity making cows more vulnerable to diseases. A previous study reported that daidzein can enhance animal resistance to heat stress and regulate animal immunocompetence. However, it is unclear whether daidzein regulates the immune performance of late lactation cows under heat stress. In this study, late lactation cows in four groups were raised in hot weather and fed with basic diet, basic diet plus 200, 300, 400mg/day daidzein, respectively, and the experimental period was 60 days. Blood was collected to examine the changes of serum total protein (TP), albumin (ALB), immunoglobulin G (IgG), interferon alpha (IFN-α), and interleukin-2 (IL-2). We found the levels of serum IgG and INF-α were significantly higher in late lactation cows after 300 and 400mg/day daidzein treatment compared to those in the control group and 200mg/day daidzein treatment (P<0.05 or P<0.01). Moreover, 300 and 400mg/day daidzein treatment markedly increased serum IL-2 (P<0.01), while the levels of serum TP and ALB were not changed by any concentration of daidzein treatment (P>0.05). Daidzein can enhance the immunocompetence of late lactation cows and strengthen cow resistance to heat stress. © 2013 Japanese Society of Animal Science.


Liu D.-Y.,Anhui Science and Technology University | He S.-J.,Anhui Science and Technology University | Jin E.-H.,Anhui Science and Technology University | Liu S.-Q.,Bengbu Heping Dairy Industry Co. | And 3 more authors.
Livestock Science | Year: 2013

Forty Chinese Holstein cows were randomly divided into 4 groups according to birth, milk yield, and close lactation. The cows in 4 groups were fed with basic diet, basic diet plus 200, 300, 400. mg/day daidzein, respectively; and the experimental period was 60 days. The milk yield in all cows was monitored everyday and the quality of milk was examined regularly. Blood was collected on days 0, 10, 30, 60 of experiment to isolate serum, and the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT), malondialdehyde (MDA) content, and total antioxidant capacity (TAC) in the serum were measured. Results showed that the milk yield and the percentage of milk fat were significantly higher after feeding daidzein (. P<0.01), and the percentage of milk protein was significantly elevated on day 60 in three daidzein groups (. P<0.05 or P<0.01), especially in 400. mg/day daidzein group (. P<0.01). Compared with the control group (basic diet), the TAC and activities of SOD, GSH-Px and CAT were markedly elevated in three daidzein groups (. P<0.05 or P<0.01), while the MDA content was significantly reduced in three daidzein groups (. P<0.05 or P<0.01). All data suggest that daidzein has positive effects on increasing the production performance and antioxidative activity in late lactation cows, and enhancing the body adaptability and resistance to heat stress. © 2012 .

Loading Bengbu Heping Dairy Industry Co. collaborators
Loading Bengbu Heping Dairy Industry Co. collaborators