By-Product of Cotton Agribusiness as an Alternative Protein Source for Rams

Fagton Negrão, Anderson Zanine, Marinaldo Ribeiro, Daniele Ferreira, Alexandre Souza, Michelle Parente, Henrique Parente, Luiz Geron, Anny Lima, Rafael Reis and Túlio Lins
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Fagton Negrão: Department of Animal Science, Federal Institute of Education, Colorado do Oeste, Rondônia 76993-000, Brazil
Anderson Zanine: Department of Animal Science, Federal University of Maranhão, Chapadinha, Maranhão 65500-000, Brazil
Marinaldo Ribeiro: Department of Animal Science, Federal University of Goiás, Goiânia, Góias 74690-900, Brazil
Daniele Ferreira: Department of Animal Science, Federal University of Maranhão, Chapadinha, Maranhão 65500-000, Brazil
Alexandre Souza: Department of Animal Science, Federal University of Mato Grosso, Cuiabá, Mato Grosso 78735-901, Brazil
Michelle Parente: Department of Animal Science, Federal University of Maranhão, Chapadinha, Maranhão 65500-000, Brazil
Henrique Parente: Department of Animal Science, Federal University of Maranhão, Chapadinha, Maranhão 65500-000, Brazil
Luiz Geron: Department of Animal Science, State University of Mato Grosso, Pontes e Lacerda, Mato Grosso 78250-970, Brazil
Anny Lima: Department of Animal Science, Federal University of Maranhão, Chapadinha, Maranhão 65500-000, Brazil
Rafael Reis: Department of Animal Science, Federal Institute of Education, Colorado do Oeste, Rondônia 76993-000, Brazil
Túlio Lins: Department of Animal Science, Federal Institute of Education, Colorado do Oeste, Rondônia 76993-000, Brazil

Agriculture, 2020, vol. 10, issue 7, 1-11

Abstract: The aim of this study was to evaluate the effect on intake, digestibility and fractionation of carbohydrates and proteins of cottonseed cake as an alternative protein source in rams diets. The diets were composed of corn silage, soybean meal, ground corn, urea, and cottonseed cake (0, 70, 140 and 210 g/kg dry matter (DM)) in a roughage/concentrate ratio of 50:50. Thirty-two Santa Ines rams, average age 12 months and weight 27.48 ± 4.96 kg were distributed in a completely randomised design. A reduction of 0.161 g/day in crude protein (CP) intake was observed for each gram of cottonseed cake inclusion. The intake of non-fiber carbohydrate (NFC) decreased by 0.511 g/day for each gram of cottonseed cake inclusion. Similarly, the ratio between intake of DM ( p = 0.034), CP ( p < 0.001), NFC ( p = 0.004) and body weight decreased with cottonseed cake inclusion. Inclusion of cottonseed cake caused decreases in the digestibility coefficients of DM ( p < 0.001), CP ( p < 0.001) and NFC ( p = 0.002). A reduction of 0.716 g was observed in carbohydrate fraction A + B 1 ( p = 0.006). The inclusion of cottonseed cake in the rams feed should be carried out with caution because this by-product promotes linear reduction in intake and digestibility nutrient, in addition to modifying the amounts of digestible and indigestible fractions in the diets.

Keywords: alternative feed; digestibility; intake; ovine; sustainability (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
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