The effect of dietary supplementation with globin and spray-dried porcine plasma on performance, digestibility and histomorphological traits in broiler chickens

Chemical Composition and Functional Properties of Spray-Dried Animal Plasma and Its Contributions to Livestock and Pet Health: A Review

Spray-dried animal plasma (SDAP) is a functional ingredient derived from healthy animal blood, used as a nutritional additive in livestock and pet nutrition. SDAP is rich in macronutrients, micronutrients, and bioactive compounds such as immunoglobulins, albumin, growth factors, peptides, transferrin, and enzymes. This review focuses on the chemical composition of SDAP from porcine, bovine, and poultry sources, including protein quality and mineral profile. SDAP enhances performance and health in monogastric farm animals, aquaculture, and pets. It promotes growth rates and feed intake due to its high digestibility and superior amino acid profile compared to other protein sources. In pigs, SDAP's positive effects stem from tissue-specific actions in the gastrointestinal tract, impacting digestion, immunity, and barrier function. For poultry, SDAP shows promise as a substitute for antibiotic growth promoters, particularly in chick starter diets. SDAP contains functional proteins that regulate immune response, enhance intestinal health, and aid in stress conditions. It is also used as a binder in pet food, providing high protein content and other desirable properties. SDAP meets the dietary requirements of carnivorous pets, appealing to owners seeking animal-derived protein sources. Additionally, SDAP may help prevent cognitive impairment in senior dogs and cats.

Effects of feeding spray-dried plasma to broiler breeders and their progeny on broiler performance under stressful rearing conditions of coccidial challenge and heat stress

A total of 216 Cobb 500 broiler breeder hens were randomly distributed across 2 dietary treatments with 0 or 1% spray-dried plasma (SDP) resulting in 27 replications/treatment and 4 birds/replication. In addition, 36 roosters were divided between the same treatments and housed, in individual pens, being each bird considered a replicate. Experimental diets were fed from 26 wk until 65 wk of age. At 29, 45, and 63 wk of age, broiler breeder hens were inseminated, and eggs were incubated. Three progeny studies were performed and hatched birds were allocated in a randomized 2 × 2 factorial design (maternal diet: with or without inclusion of 1% SDP × progeny diet: with or without the inclusion of 2% SDP from 1 to 7 d of age). After 7 d of age, all birds received the same diet until 42 d. In all trials, birds were challenged with coccidiosis vaccine at 7 d of age. Furthermore, in the second experiment, heat stress was also included for 6 h a day during the whole trial. At 42-days posthatch in the first experiment, greater FI, BW, and BWG in chicks hatched from breeders fed 1% dietary SDP was observed. This effect did not extend to the other hatches. In the second trial, a decreased FCR in broilers fed the control diet from breeder hens fed 1 % of SDP was observed, as well as an interaction between the SDP groups, since broilers supplemented with SDP and originated from breeders fed SDP showed higher BW and BWG in comparison to other groups at 42 d. In the third trial, contrary to what was observed in the first study, SDP supplementation did not affect any of the performance indexes. In the 3 studies, no differences were found in carcass characteristics. SDP did not affect hen BW, egg production, fertility, or hatch of fertile. These results suggest that providing dietary SDP to broilers has some beneficial effects on broiler chickens.

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)

Spray-dried animal plasma (SDP) in feed for several animal species provides health benefits, but research about use of SDP in shrimp feed is very limited. The objectives of the present study were to investigate the effects of dietary SDP on growth performance, feed utilization, immune responses, and prevention of Vibrio parahaemolyticus infection in Pacific white shrimp (Litopenaeus vannamei). In Experiment 1, the post-larvae were divided into five groups (four tank/group and 80 shrimp/tank) and fed four times daily diets with porcine SDP at 0, 1.5, 3, 4.5, and 6% of the diet for 45 days. In Experiment 2, the surviving shrimp from Experiment 1 were redistributed into six groups: four SDP groups as in Experiment 1 plus the positive and negative controls (four tank/group and 30 shrimp/tank). They were then challenged with V. parahaemolyticus by immersion at 10⁵ colony-forming units (CFU)/mL and were fed with the same diets for another 4 days. In Experiment 1, shrimp fed 4.5% or 6% SDP diets had significantly higher body weight, survival rate, and improved feed conversion ratio. The immune parameters (total hemocyte count and phagocytic, phenoloxidase, and superoxide dismutase activities) of the shrimp fed 3–6% SDP diets also showed significant enhancement compared to the control. In Experiment 2, the survival rates of the 3–6% SDP groups were significantly higher than the positive control at day 4 after the immersion challenge. Likewise, the histopathological study revealed milder signs of bacterial infection in the hepatopancreas of the 3–6% SDP groups compared to the challenged positive control and 1.5% SDP groups. In conclusion, shrimp fed diets with SDP, especially at 4.5–6% of the diet, showed significant improvement in overall health conditions and better resistance to V. parahaemolyticus infection.