Spray‐dried porcine plasma improves feed intake of weaned piglets subjected to heat stress

Abstract

The objective of this study was to evaluate the effects of spray‐dried porcine plasma (SDPP) on performance, measurement of thyroid hormones triiodothyronine (T3) and thyroxine (T4), body temperature and relative organ weights of weaned piglets exposed to a heat stress or a thermoneutral environment. One hundred and forty‐four piglets with initial BW of 5.82 ± 0.33 kg (28 d old) were used. The experimental design was a 4 x 2 factorial arrangement, four plasma levels (0.0, 2.5, 5.0 and 7.5%) and two environments (34º [heat stress (HS)] and 24°C [thermoneutral (TN)]). SDPP was fed from weaning (28 d of age) to the end of the trial (piglets were weighed at the beginning, 7, 21 and 35 days of trial). Rectal, neck, shoulder and leg temperatures were measured every seven days. At 21 days of trial, one piglet per pen was slaughtered to determine the weight of the carcass and organs. Blood samples were collected at 18 and 35 days of trial to determine levels T3 and T4. The rectal, neck, shoulder and leg temperatures were increased (p < 0.05) 0.4, 1.5, 1.0 and 1.3ºC, respectively, and relative weight of the lungs (p < 0.05) and total T3 (p < 0.05) were decreased 0.001 kg/kg and 0.19 ng/dl, respectively, for pigs in the HS environment. The estimated inclusion of 5.1% of SDPP had the greatest (p < 0.05) weight gain during the first week, and throughout the nursery phase, the 5% of inclusion had a tendency of improvement (p = 0.075), regardless of ambient temperature. For the entire period, pigs reared in the HS environment had the greatest (p < 0.05) estimated feed intake by the quadratic regression with the inclusion of 4.3% of SDPP.

Effects of spray-dried animal plasma on growth performance, survival, feed utilization, immune responses, and resistance to Vibrio parahaemolyticus infection of Pacific white shrimp (Litopenaeus vannamei)

“…The present study demonstrated that the shrimp feed supplemented with porcine SDP, especially at 3-6% of the diet, could improve the growth performance, survival, feed utilization, immune responses, and reduce the mortality caused by V. parahaemolyticus infection. The effective dose of SDP for improving the overall health status of the Pacific white shrimp was mainly in agreement with those reported in the pig studies (5-8% SDP) [7][8][9][10][11]. Multiple modes of action of SDP have been proposed.…”

“…This includes enhancing growth performance, nutrient utilization, and feed intake, suppressing inflammation and disease incidence, and influencing gut microbiota in a positive manner [3,4,6]. Supplementation of SDP in the feed at 5-8% of the diet (50-80 g/kg diet) for 14-35 days was reported to significantly enhance the body weight and feed intake of weaned pigs with or without bacterial challenge [7][8][9][10][11]. Thus, it has been proposed for use as a growth promoter in the livestock industry.…”

Spray-Dried Plasma Improves Body Weight, Intestinal Barrier Function, and Tibia Strength during Experimental Constant Heat Stress Conditions

“…The improvement of intestinal barrier function has also been reported with the dietary supplementation of spray-dried chicken plasma in weaning piglets [ 25 ]. In another study, the significant physiological and performance parameters observed in pigs supplemented with SDP and subjected to heat stress were linked to the enhancement of gut barrier integrity, antioxidant activity, and immune modulation [ 26 ]. This is the first study confirming the reduction of FITC-d in the serum of SDP-supplemented heat stress chickens.…”

Análise Econômica E De Rendimento De Carcaça De Frangos De Corte Descongelados E Desossados

“…Foi observado que dietas suplementadas com proteínas plasmáticas, como plasma sanguíneo ou concentrado de imunoglobulinas, podem prevenir alterações na estrutura do epitélio durante o processo inflamatório e melhorar a função de barreira da mucosa intestinal (Cerqueira et al, 2019).…”