Energy metabolism and respirometry of lambs fed sun or shade dried hays of banana crop residues

• Published in: Tropical animal health and production Vol. 56; no. 4; p. 139
• Main Authors: Geraseev, Luciana Castro, Santos, Sarah Silva, Chaves, Amália Saturnino, de Carvalho, Pedro Paulo Xavier, da Motta, Sthephane Alverina Briguente, Machado, Fernanda Samarini, Duarte, Eduardo Robson, Passetti, Rodrigo Augusto Cortêz
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01-05-2024; Springer Nature B.V
• Subjects: Animal Feed - analysis; Animal Nutritional Physiological Phenomena; Animal production; Animals; Biomedical and Life Sciences; Carbon dioxide; Crop residues; Crops; Desiccation; Diet; Diet - veterinary; Digestibility; Digestion; Dry matter; Drying; Energy consumption; Energy intake; Energy loss; Energy Metabolism; Food intake; Food preservation; Fruits; Hay; Lamb; Leaves; Life Sciences; Maintenance; Male; Metabolism; Methane; Musa - chemistry; Nutrient availability; Nutrients; Organic matter; Oxygen Consumption; Regular Articles; Residues; Respirometry; Shade; Sheep, Domestic - physiology; Veterinary Medicine/Veterinary Science; Zoology; Byproduct; Musa spp; Respirometric parameters; Nutritional value
• ISSN: 0049-4747; 1573-7438
• DOI: 10.1007/s11250-024-03984-2

We aimed to evaluate the effects of different drying methods for banana residues on the energy metabolism and respirometry of growing lambs. Twenty Santa Inês x Dorper lambs were fed five experimental diets: Tifton 85 grass hay (Control), shade-dried banana leaf hay (LH Shade), shade-dried pseudostem banana hay (PH Shade), sun-dried banana leaf hay (LH Sun), and sun-dried banana pseudostem hay (PH Sun). Nutrient intake and digestibility were assessed in metabolic cages, whereas O
2
consumption and CO
2
, methane, and heat production were measured in a respirometry chamber with animals fed at maintenance and
ad libitum
levels. Nutrient and energy intake was not influenced by diet. Pseudostem hay had higher apparent digestibility of dry matter (71.5%), organic matter (72.4%), and neutral detergent fiber (58.0%). However, this led to greater energy loss in the form of methane (12.1%). The banana residue hays and drying methods did not alter oxygen consumption, CO
2
production, or heat production of animals fed
ad libitum
or during maintenance. On the other hand, the use of leaf hay resulted in a reduction of 24.7% in enteric methane production of animals fed
ad libitum
. The inclusion of pseudostem hay is recommended in sheep feedlot diet. This residue provided greater use of DM, however promoted a greater loss of energy in the form of methane, resulting in similar energy consumption. The drying methods did not reduce the availability of nutrients and the sun drying method is recommended, since it is a faster drying method.