Apparent digestibility of dry matter, organic matter, protein and energy of native Peruvian feedstuffs in juvenile rainbow trout (Oncorhynchus mykiss)

Abstract

Trout production is a growing activity in recent years but requires new alternative sources of feed to be sustainable over time. The objective of this research was to determine the apparent digestibility coefficient (ADC) of dry matter (DM), organic matter (OM), crude protein (CP) and digestible energy (DE) of kañiwa (Chenopodium pallidicaule Aellen), kiwicha (Amaranthus caudatus L), quinoa (Chenopodium quinoa Willd), beans (Phaseolus vulgaris L.), sacha inchi, (Plukenetia volubilis L) and jumbo squid (Dosidicus gigas) meal in juvenile rainbow trout. The experimental diets were composed of a 70% basal diet and 30% of any raw materials. The ADC was determined by the indirect method using insoluble ash as a non-digestible marker. Jumbo squid, sacha inchi and quinoa showed the highest values of ADC (%) of DM (84.5, 73.5 and 69.7), OM (89.1, 78.4 and 72.9), CP (93.2, 98.0 and 90.3), and DE (4.57, 4.15 and 2.95 Mcal/kg DM), respectively. The ADC values for kañiwa, kiwicha and bean were significantly lower. In conclusion, quinoa meal and jumbo squid meal have an acceptable digestibility but sacha inchi meal is a potential alternative for rainbow trout feeding in the future.

Can Yucca schidigera Be Used to Enhance the Growth Performance, Nutrient Digestibility, Gut Histomorphology, Cecal Microflora, Carcass Characteristic, and Meat Quality of Commercial Broilers Raised under Tropical Conditions?

“…Conversely, the inclusion of Y. schidigera in broiler diets showed significantly lower digestibility of DM and ash in the present study. The lower DM digestibility of phytogenic ingredients can be due to the higher composition of fiber in the diet [ 20 ].…”

Comparative estimation of the lysine requirements in two generations of improved strain of Nile tilapia (Oreochromis niloticus) at the grow-out stage

“…There were limited information limited information on how dietary lysine affects ADC of dry matter but a study by Ref. [ 49 ] suggested that a lower value of ADC nutrients might be due to the high fibre content in the diet which decreased the digestibility. Nutritional values of a diet will depend on how efficient its nutrient can be digested, and since there may be interactions amongst the ingredients, the additivity of each ingredient's digestibility should be addressed.…”

Isolation and identification of dipeptidyl peptidase‐IV inhibitory peptides from Sacha inchi meal

“…SIM has an obvious bitter taste and is difficult to process directly into food 5 . Currently, SIM is mainly used as a feed ingredient for aquatic animals 6,7 . Protein hydrolysates are defined as a complex mixture of peptides and free amino acids produced by enzymatic hydrolysis, which increases the bioavailability of proteins and reduces the immunoreactivity of native proteins 8 .…”

“…5 Currently, SIM is mainly used as a feed ingredient for aquatic animals. 6,7 Protein hydrolysates are defined as a complex mixture of peptides and free amino acids produced by enzymatic hydrolysis, which increases the bioavailability of proteins and reduces the immunoreactivity of native proteins. 8 Studies reported that enzymatically hydrolyzed Sacha inchi protein has antioxidant, antihypertensive, enzyme inhibition (⊍-amylase, ⊍-glucosidase and pancreatic lipase) activities.…”