Methane Emission, Carbon Footprint and Productivity of Specialized Dairy Cows Supplemented with Bitter Cassava ( Manihot esculenta Crantz).

Autor:	Molina-Botero IC; Tropical Forages Program, International Center for Tropical Agriculture (CIAT), Km 17, Palmira 763022, Valle del Cauca, Colombia., Gaviria-Uribe X; Tropical Forages Program, International Center for Tropical Agriculture (CIAT), Km 17, Palmira 763022, Valle del Cauca, Colombia., Rios-Betancur JP; Colanta, Calle 74# 64ª-51, Medellín 050044, Antioquia, Colombia., Medina-Campuzano M; Colanta, Calle 74# 64ª-51, Medellín 050044, Antioquia, Colombia., Toro-Trujillo M; Colanta, Calle 74# 64ª-51, Medellín 050044, Antioquia, Colombia., González-Quintero R; Tropical Forages Program, International Center for Tropical Agriculture (CIAT), Km 17, Palmira 763022, Valle del Cauca, Colombia., Ospina B; Corporacion Clayuca, International Center for Tropical Agriculture (CIAT), Km 17, Palmira 763022, Valle del Cauca, Colombia., Arango J; Tropical Forages Program, International Center for Tropical Agriculture (CIAT), Km 17, Palmira 763022, Valle del Cauca, Colombia.
Jazyk:	angličtina
Zdroj:	Animals : an open access journal from MDPI [Animals (Basel)] 2023 Dec 20; Vol. 14 (1). Date of Electronic Publication: 2023 Dec 20.
DOI:	10.3390/ani14010019
Abstrakt:	The objective of this research was to determine the effect of cassava ( Manihot esculenta Crantz) supplementation on enteric methane (CH 4 ) emissions, carbon footprint, and production parameters in dairy cows. Daily concentrate supply for Jersey and Jersey * Holstein breeds was evaluated in four treatments (T): T1: 100% commercial concentrate; T2: 70% concentrate + 30% cassava leaves; T3: 70% concentrate + 30% cassava roots; and T4: 70% concentrate + 15% cassava leaves + 15% cassava root chips. Measurements of CH 4 emissions were performed using the polytunnel technique. Average daily dry matter intake ranged from 7.8 to 8.5 kg dry matter (DM). Cassava leaves were characterized by a high crude protein (CP) content (171 g CP/kg DM), with 5 times more neutral detergent fiber (NDF) content than cassava root (587 vs. 108 g NDF/kg DM). Average enteric CH 4 emissions per animal ranged from 194 to 234 g/d ( p > 0.05 ). The carbon footprint was reduced by replacing 30% of the concentrate with cassava leaves and/or roots. Energy-corrected milk production was 1.15 times higher in Jersey * Holstein animals than Jersey cows (47 vs. 55 kg). Therefore, supplementation with cassava leaves and/or roots is a nutritionally and environmentally sustainable strategy.
Databáze:	MEDLINE
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