Comparative assessment of soybean meal with high and low glucosinolate rapeseed–mustard cake as protein supplement on performance of growing crossbred calves

Abstract

BACKGROUND: Feeding of high glucosinolate rapeseed-mustard cakes (RMCs) imparts adverse effects on dry matter (DM) intake, health and overall performance of animals. Recently, plant breeding efforts have resulted in many cultivars of RMCs containing low to moderate levels of glucosinolate in India. The feeding value of RMC cultivars with high and low glucosinolate was evaluated relative to commonly used soybean meal as a protein supplement in growing crossbred calves.

Comparison between the effects of feeding copper sulphate‐treated and untreated rapeseed cake containing high glucosinolates on rumen fermentation, nutrient digestion and nitrogen metabolism in steers

“…Similarly, Ravichandiran et al (2008) (Ward et al, 1993). Supplementing Cu from 0 to 30 mg kg −1 DM to a basal ration (7.5 mg Cu kg −1 DM) increased NDF digestibility in dairy cows (Zhang et al, 2007).…”

“…Many studies showed that the end products of GLS in vivo negatively affected growth performance of animals by reducing feed intake, affecting thyroid function and damaging the liver and kidneys (Dillard et al, 2018;Ravichandiran et al, 2008). Ruminants are comparatively less sensitive to dietary GLS than monogastric animals (Tripathi & Mishra, 2007).…”

“…It was reported that growing calves received high dietary GLS (50.4 µmol g −1 DM) had 34% lower average daily gain (ADG) than low GLS treatment (4.4 µmol g −1 DM) (Ravichandiran et al, 2008). Diets containing higher than 10 µmol GLS g −1 DM depressed fertility and caused thyroid disturbance in dairy cows (Emanuelson et al, 1993).…”

Invited Review: Glucosinolates Might Result in Low Methane Emissions From Ruminants Fed Brassica Forages

“…acephala DC) to fattening lambs can increase the concentrations of T 3 and T 4 in serum (76). Feeding a diet containing a high content of GSLs to calves resulted in a quadratically increased serum T 4 concentration, although T 3 concentration remained within the normal physiological range (79). Diets contained GSLs affect thyroid function in many animal species (56), including pigs (80), mares (81), turkeys (82), hens (83), and turbots (84), suggesting that effects of GSLs on thyroid function are not unique to ruminants, but universal in a wide range of animal species.…”

“…Feeding brassica forages or diets containing GSLs and their breakdown products can affect animal thyroid function and alter thyroid hormone secretion (56,(75)(76)(77)(78)(79). For example, feeding turnip (Brassica rapa L.) and kale (B. oleracea L. var.…”