Co-supplementation of colostrum powder on performance, intestinal morphology, blood biochemical parameters and antioxidant status of broilers in heat stress

Abstract

This experiment was conducted to investigate the effects of different levels of colostrum powder on performance, intestinal morphology, blood biochemical parameters and antioxidant status of broilers in heat stress. In this experiment 224 Ross-308 broiler chicks were used from 1 to 42 days in 5 treatments and 4 replicates (12 birds per replicate) in a completely randomized design. Treatments included: 1) control (without using colostrum), 2) 0.5% of colostrum, 3) 1% of colostrum, 4) 1.5% of colostrum, and 5) 2% of colostrum powder. Colostrum powder was added in first 10 days of broilers breeding period in their diets. Colostrum powder had significant effects on performance, carcass traits and intestinal cells morphology of broilers in heat stress (P < 0.05). In grower period the highest amounts of final body weight and body weight gain were obtained with 2% of colostrum powder. Colostrum powder in contrast to control improved the percentages of gizzard, liver, bursa of fabricious, thighs and breast (P > 0.05). The highest villies, the lowest crypts and the highest ratio of villies/crypts were obtained with colostrum powder adding (P > 0.05). Colostrum powder had no significant effects on blood biochemical parameters and antioxidant status of broilers. The overall resulted showed that in broilers in heat stress condition using colostrum powder up to 2% in starter period has beneficial effects on performance, carcass traits and intestinal morphology of broilers.

The Effect of Using Bovine Colostrum and Probiotics on Performance, Egg Traits, Blood Biochemical and Antioxidant Status of Laying Japanese Quails

“…The increased egg albumin is due to the high percentage of colostrum protein, improvement in eggshell traits is related to the richness of bovine colostrum in terms of calcium, egg yolk is more colorful due to the high content of vitamin A and other useful pigments in colostrum as xanthophyll or carotene [67]. The increase in qualitative traits in this research is consistent with the findings of the report [27,55] on colostrum use in broiler chickens.…”

“…The positive effects of using cow colostrum in the diet on broiler chicken performance are consistent with the findings of other research [25,27]. In another report, it was determined that the use of colostrum powder up to 5% in the diet of laying quails improved feed consumption, egg production, egg weight, and feed conversion ratio [48].…”

“…Since the amount of colostrum produced by dairy cows is more than their calves' needs, it could be used as feed additive [24]. Many authors reported the positive effects of its dietary inclusion in poultry, observing improved final body weight, carcass yield, feed efficiency, oxidative status, and positive changes in their intestinal cells' morphology [25][26][27]. In addition, probiotic microflora-based food products are essential components of the diet.…”

Bovine Colostrum: Its Constituents and Uses

“…Similarly, BC supplementation to young broilers (1-10 days old) under heat stress showed benefits on thigh and breast size compared to the control group [163].…”

“…A trial of BC supplementation (5% by weight) into the feed of broiler chicks for the first two weeks after hatching showed greater feed conversion efficiency in the BC group [ 162 ]. Similarly, BC supplementation to young broilers (1–10 days old) under heat stress showed benefits on thigh and breast size compared to the control group [ 163 ].…”