The effect of feed intake containing whole cottonseed on blood parameters of Nellore bulls

Gomes, V. S; Mano, Sérgio Borges; Freitas, Mônica Q.; Santos, Marcelo Diniz dos; Azeredo, Vilma Blondet de; Silva, J. M; Santos, Érica Barbosa; Conté-Júnior, Carlos Adam

doi:10.1590/1678-4162-9005

Cited by 2 publications

(3 citation statements)

References 8 publications

(5 reference statements)

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“…It has been reported that the moisture content during extrusion helps the destruction of some aflatoxins, in addition to a high moisture concentration in the extruded product increases the loss of toxic factors [6]. According to Gomes et al [4], cotton flour contains 0.1-0.4% free gossypol. The processing of cotton flour, especially at high temperatures, favors the reduction of gossypol and it has been suggested that diets containing up to 200 mg of free gossypol are safe for ruminants, while 400 mg is the limit for considering it toxic, and, at levels greater than 800 mg, causes death [4].…”

Section: Gossypolmentioning

confidence: 99%

“…According to Gomes et al [4], cotton flour contains 0.1-0.4% free gossypol. The processing of cotton flour, especially at high temperatures, favors the reduction of gossypol and it has been suggested that diets containing up to 200 mg of free gossypol are safe for ruminants, while 400 mg is the limit for considering it toxic, and, at levels greater than 800 mg, causes death [4].…”

Section: Gossypolmentioning

confidence: 99%

“…In addition to animal toxicity, it has been reported to have anticancer, antiviral, and male infertility effects [2]. Ruminants can digest gossypol better than monogastric animals, so cottonseed meal is only used up to 23% in ruminant feed, due to the presence of gossypol, resulting in limited use [4]. Preventive procedures to limit the toxicity of gossypol involve the treatment of the cottonseed product to reduce the concentration of free gossypol with the most common treatment: thermal processing.…”

Section: Introductionmentioning

confidence: 99%

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Development and Evaluation of an Extruded Balanced Food for Sheep Based on Cottonseed Meal (Gossypium hirsutum)

Ortiz-Romero¹,

Delgado²,

Pámanes-Carrasco³

et al. 2022

Cotton

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The objective of this research was to evaluate the effect of the content of cottonseed meal (Gossypium hirsutum) and the processing variables on the functional properties and the content of gossypol of an extruded feed for sheep (Ovis aries). The diet was balanced according to the requirements of fattening Dorper sheep breed under 1 year. The extrusion process was optimized using a surface response methodology, with four independent variables: temperature in the last heating zone (120–160°C), moisture content (14–18%), screw speed (120 rpm–180 rpm), and cottonseed meal content (9 g–27 g 100 g−1), in a single screw extruder. The optimal food had 27.25% crude protein, 4.24% crude fat, 12.21% crude fiber, 46.95% nitrogen-free extract, and 9.35% ash. The composition of essential amino acids in the optimal diet was 1.00 g kg−1 of lysine, 1.25 g kg−1 of phenylalanine, 2.04 g kg−1 of leucine, 0.87 g kg−1 of isoleucine, 0.98 g kg−1 of threonine, 1.15 g kg−1 of valine, and 0.65 g kg−1 of histidine. The fatty acids present in the highest concentration in the optimal diet were 2.14% linoleic acid, 1.11% oleic acid, and 0.81% palmitic acid. The gossypol content of the optimal diet was less than 0.1%, which ensures the safety of cottonseed meal as a protein source. The optimum conditions of the extrusion process were 120°C temperature, 120 rpm screw speed, 14.00% humidity, and 27 g 100 g−1 cottonseed meal.

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Section: Gossypolmentioning

confidence: 99%

Section: Gossypolmentioning

confidence: 99%