In Exp. 1 two groups of 18 sows were used to evaluate the effects of supplemental dietary fat on sow and litter performance and milk production and composition. Sows were provided ad libitum access to either a corn-soybean meal (control) diet or a similar diet containing 10% tallow. Feed intake, ME intake, and milk yield did not differ (P > .10) between treatments. The percentage of solids in milk was greater (P < .05) for sows fed the tallow diet, due to an increase (P < .05) in the fat and ash content. Compared with percentages of fatty acids in milk of sows fed the control diet, the percentages of C10:0, C14:0, C16:0, C16:1, and C18:3 fatty acids were lower (P < .05) and the percentages of C18:0 and C18:1 fatty acids were higher in milk of sows fed tallow diets (P < .05). In Exp. 2, 30 sows were fed diets similar to those fed in Exp. 1, and the effects of a tallow diet on pig carcass composition at weaning were determined. Litter size was standardized to 10 pigs. There were no differences (P > .10) in ADFI of sows. Daily ME intake was greater for sows fed tallow than for control sows during wk 2 (P < .05), wk 3 (P < .10), and the entire lactation (P < .05) period. Litter weaning weight was greater (P < .05) for pigs from sows fed tallow diets than for pigs from control sows. Pigs from tallow-fed sows had greater carcass fat weight and fat percentages (P < .05) and lower water and protein percentages (P < .05). These data indicate that the increased fat content of milk from sows fed tallow diets resulted in an increased weight gain for litters nursing these sows. The composition of the increased weight gain is almost exclusively fat.

Research was conducted to determine the effect of genetic line on hormonally induced puberty. Two studies were conducted, the first to evaluate estrus response (n = 120 gilts) and the second to evaluate follicular development (n = 24 gilts). Gilts were allotted to treatments in a 2 x 2 factorial arrangement. Gilts from two genetic lines (Age at Puberty x Yorkshire [APY] and Relaxed Selection x Yorkshire [RSY] received either P.G. 600 [symbol: see text] (P) or no injection (C). The percentage in estrus within 5 d after treatment was greater (P < .05) for P than for C gilts. However, no difference was detected for the percentage of P or C gilts that had ovulated within 14 d. For the APY line, P gilts had greater (P < .05) ovulation rates than C gilts. However, for the RSY line, P and C gilts did not differ in ovulation rate. More P gilts than C gilts had follicular cysts (P < .05). At 48 h after onset of estrus, plasma progesterone concentration tended to be greater (P = .13) for P gilts than for C gilts. In Exp. 2, gilts were ovariectomized 18 h after the onset of estrus. Ova were dissected from follicles on one ovary, and follicular fluid was aspirated from the other ovary. No differences were detected for the percentages of ova in various stages of meiosis. For APY gilts, follicular fluid estradiol concentration for P gilts tended to be lower (P = .12) than that for C gilts; however, no differences were detected for RSY gilts. Progesterone concentration in follicular fluid tended (P = .14) to be greater in P gilts than in C gilts. These results indicate that the effect of genetic line on age at puberty should be considered when inducing puberty.

An 8‐week growth trial was conducted to evaluate the use of a high protein distiller's dried grain (HPDDG, NexPro®, Flint Hills Resources, LP, Wichita, KS) on the growth performance of juvenile Pacific white shrimp Litopenaeus vannamei. In the growth trial, graded levels of HPDDG (0.00, 10.00, 15.00, and 20.00%) were used to replace corn protein concentrate (CPC: 12.60, 6.30, 3.15, and 0.00%) or fishmeal (FM: 17.40, 9.79, 6.00, and 2.21%). A commercially produced open‐feed formulation was also included in the trial as a reference. Each diet was randomly assigned to four replicate groups of 30 shrimp stocked in 0.8 m3 culture tanks. Under green water conditions, in the presence of natural foods, the results indicated that growth performance and feed conversion ratio were not statistically influenced by increasing levels of HPDDG when used to replace CPC. The FM replacement series trial results showed that shrimp fed a diet with 20% HPDDG exhibited significantly decreased trend of biomass. Results of this study demonstrate that HPDDG is a good protein source, and 20% HPDDG can be used to replace CPC in shrimp diets, or up to 15% when replacing FM.

Four experiments were conducted to determine the effects of dietary fat on lipolysis in lactating sows. In Exp. 1, a 6 x 6 Latin square was used to determine the optimal dosage of epinephrine for use in a subsequent epinephrine challenge. Peak concentrations of plasma glucose and response area increased linearly (P < .10) with epinephrine dosage. However, plasma NEFA peak and response area were quadratically affected (P < .05 and .06, respectively) by epinephrine dosage, with a minimum NEFA peak concentration observed at .4 microg/kg and a maximum at 1.6 microg/kg. In Exp. 2, the effect of dietary tallow on the response to epinephrine infusion (1.6 microg/kg BW) was examined. No differences (P > .10) between treatments were observed in NEFA, glycerol, or peak concentrations of plasma glucose following epinephrine administration. In Exp. 3, the effect of dietary fat on hormone-sensitive lipase activity was examined. Sows (n = 36) were fed diets containing either 0 or 10% added tallow. Hormone-sensitive lipase activity on d 28 of lactation was increased by the addition of tallow to the diet (P = .06). No effect of dietary tallow was observed on hormone-sensitive lipase activity of adipose tissue on d 21 of lactation (P > .10) in Exp. 3 (n = 16 sows) and Exp. 4 (n = 30 sows). In summary, diets containing 10% added tallow did not alter the rate of lipolysis, as measured by exogenous epinephrine challenge, in adipose tissue of lactating sows.

We present a 58-year-old female with a past history of a pituitary adenoma resected two years prior to admission who developed polymorphic ventricular tachycardia and cardiogenic shock requiring veno-arterial extracorporeal membrane oxygenation (VA-ECMO). We noted that the patient had stopped taking all of her medications six months prior to presentation. An extensive workup revealed acute panhypopituitarism with secondary hypothyroidism, secondary adrenal insufficiency, and central diabetes insipidus. She was immediately initiated on thyroid and adrenal hormone replacement therapy as well as fluid replacement. Within five days of her medical treatment, the patient’s cardiac function improved and she was successfully weaned from VA-ECMO and subsequently discharged home with appropriate hormone replacement therapy.