Performance of grazing cows fed supplements from coproducts of biodiesel industry replacing soybean meal.

Autor: Alves Júnior RT; Centro de Ciências Agrárias, Universidade Federal da Paraíba, Rodovia BR 079 Km 12, Areia, 58397-000, Paraíba, Brazil., Signoretti RD; Polo Regional Alta Mogiana, Agência Paulista de Tecnologia dos Agronegócios, Avenida Rui Barbosa, Colina, São Paulo, 14770-000, Brazil., Henriques LT; Faculdade de Medicina, Universidade Federal de Juiz de Fora, Rua Espírito Santo 993, Juiz de Fora, Minas Gerais, 36036-900, Brazil., Silva EEPD; Centro de Ciências Agrárias, Universidade Federal da Paraíba, Rodovia BR 079 Km 12, Areia, 58397-000, Paraíba, Brazil., Bittencourt CA; Programa de Pós-Graduação em Ciência Animal, Universidade Federal do Paraná, Rua Pioneiro, Palotina, Paraná, 2153, Brazil., de Oliveira JS; Centro de Ciências Agrárias, Universidade Federal da Paraíba, Rodovia BR 079 Km 12, Areia, 58397-000, Paraíba, Brazil., Pinheiro JK; Centro de Ciências Agrárias, Universidade Federal da Paraíba, Rodovia BR 079 Km 12, Areia, 58397-000, Paraíba, Brazil. jessyca.pinheiro@yahoo.com.br., Gonzaga Neto S; Centro de Ciências Agrárias, Universidade Federal da Paraíba, Rodovia BR 079 Km 12, Areia, 58397-000, Paraíba, Brazil.
Jazyk: angličtina
Zdroj: Tropical animal health and production [Trop Anim Health Prod] 2024 Aug 30; Vol. 56 (7), pp. 245. Date of Electronic Publication: 2024 Aug 30.
DOI: 10.1007/s11250-024-04083-y
Abstrakt: The objective of the present study was to evaluate the substitution of soybean meals by biodiesel co-products on the performance and nutrient balance of lactating cows on pasture. Twelve dairy cows (7/8 Holstein-Gir) in early lactation were included in this feeding trial. These animals had an average daily milk yield of 21.1 kg and were distributed in a 4 × 4 triple Latin square experimental design. Protein supplements fed to these lactating cows contained peanut meal, cotton and sunflower as a complete replacement for soybean meal. Nutrient intake and digestibility, milk production, microbial protein synthesis, energy and protein balance were the parameters assessed in this study. Supplements containing different biodiesel co-products did not influence (P > 0.05) the level of forage intake, supplementation and nutrient by lactating cows, except for the total digestible nutrients (TDN) intake which was higher (P ≤ 0.05) in cows supplemented with cottonseed meal. The cotton meal also promoted higher digestibility of TDN (P = 0.001) and total carbohydrates (TCHO; P = 0.001) of the diet and, as a result, higher energy consumption (P = 0.01) and lower negative energy balance (P = 0.01). Cottonseed meal is a co-product of the biodiesel industry that has the ability to replace soybean meal as a source of protein in the supplement without affecting performance and promoting greater energy availability, demonstrating its ability to reduce the effects of negative energy balance in cows at the beginning of lactation kept on tropical pastures.
(© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
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