ABSTRACT
This study aimed to explore the effects of light-emitting diode (LED) light colors on growth, intestinal morphology, and cecal microbiota in broilers. A total of 360 healthy male Arbor Acres (AA) broilers with similar weights were selected and divided into four groups with six replicates in each group and 15 broilers in each replicate: LED white light (W), LED green light (G), LED blue light (B), and LED blue-green composite light (BG). The experimental period was 42 d, the light cycle of each treatment group was 23L:1D (23 h of light, one hour of darkness) from 1 to 3 d, and the light cycle from 4 to 42 d was 16L:8D; light intensity was 20 Lux. The results showed that the average daily feed intake and final weight of broilers receiving the B group were the highest in 21 d and 42 d compared with other groups. The average daily feed intake of the BG group was lower than that of the B group. In the same light color, small intestine villus height grows with age. On days 21 and 42, compared with other groups, the ileal villus height was higher, the crypt depth was lower, and the V/C ratio (villus to crypt ratio) was higher in the BG group. The combination of blue-green composite light was beneficial to increase the content of propionate, isobutyrate, butyrate, isovalerate, and valerate in the cecum of 21-day-old broilers and the content of isobutyrate in the cecum of 42-day-old broilers, and a decrease in cecal short-chain fatty acid concentrations with age. The B group and the BG group had higher abundances of Bacteroidetes at day 21 of age and lower abundances of Phascolarctobacterium at day 42. However, no cecal microbiota differences were detected by the Bonferroni-corrected test. In general, our research results showed that light color could promote the growth of broilers by affecting intestinal morphology, microbiota abundance (needs to be validated by further experiments), and cecal short-chain fatty acid concentrations. And blue and blue-green composite lights are more suitable for broiler growth.
ABSTRACT
In this study, we aimed to investigate the effects of Macleaya cordata extract (MCE) supplementation on performance, nutrient apparent digestibilities, plasma metabolites, and milk quality in dairy goats. Twenty-four lactating Guanzhong dairy goats (n = 24) were randomly divided into two groups (each containing 12 goats) in a 52-day trial: the CON group was fed a basal diet; the MCE group was fed a basal diet supplemented with 400 mg/kg MCE. The results indicated that the 4% fat corrected milk yield (4% FCM); uncorrected milk yield; milk-fat concentration; content of C4:0, C18:0, and C18:1n9c fatty acids in milk; and apparent digestibility of neutral detergent fiber (NDF) and acid detergent fiber (ADF) in the MCE group were significantly higher (p < 0.05). Furthermore, the lactoferrin (LTF), alpha-lactalbumin (α-La), and beta-lactoglobulin (ß-Lg) of the milk and feed conversion rate (FCR) of the goats were significantly greater (p < 0.01) in the MCE group than in the CON group. In contrast, the somatic cell count (SCC) (p < 0.01), content of C14:0 fatty acids (p < 0.01) of milk, and blood urea nitrogen (BUN) concentrations (p < 0.05) were significantly lower in the in the MCE goats. These results show that the feeding of MCE can increase the performance and apparent nutrient digestibility of fiber in dairy goats, improving the quality of goat milk.
ABSTRACT
Background: Cardiac arrest (CA) caused by peripartum cardiomyopathy (PPCM) is a catastrophic disease that can lead to a high mortality rate in young women. Cardiopulmonary resuscitation (CPR) is the initial first aid measure to be taken and unfortunately, does not always lead to the restoration of spontaneous circulation (ROSC). We shared a rare successful case of extracorporeal cardiopulmonary oxygenation-assisted resuscitation (ECPR) in a patient with CA for up to 5.5 hours due to PPCM. Case Description: A previously healthy 31-year-old woman at 34 weeks of gestation was admitted to the emergency department with fever and arrhythmia. Two days later, the patient had postpartum CA. She underwent CPR for up to 5 hours before receiving V-A extracorporeal membrane oxygenation (ECMO) support and eventually regained spontaneous circulation after half an hour. Based on the clinical manifestations, the patient was diagnosed with PPCM and received treatment. The patient was successfully removed from ECMO after 9 days. The patient experienced ECMO-related complications, including thrombocytopenia and intracranial hemorrhage (ICH). Although treatment was difficult, the patient was discharged after 2 months without any neurological complications. We followed up for 1 year and the patient was able to work normally as a teacher. In our mini-review, we found that the success rate of ECPR in perinatal CA was high, and ECPR is worthy of promotion and application. Conclusions: As an advanced life support method, ECPR can save patients undergoing postpartum CA. However, effective CPR and avoidance of ICH are necessary for the recovery of brain function.
