Chagas, Juana
- Institutionen för norrländsk jordbruksvetenskap, Sveriges lantbruksuniversitet
Forskningsartikel2020Vetenskapligt granskadÖppen tillgång
Nutritional and performance viability of cactus Opuntia-based diets with different concentrate levels for Girolando lactating dairy cows
Inacio, Jonas Gomes; da Conceicao, Maria Gabriela; dos Santos, Djalma Cordeiro; Vieira de Oliveira, Julio Cesar; Chagas, Juana Catarina Cariri; de Oliveira Moraes, Glaucia Sabrine; dos Santos Silva, Evannielly Thuanny; Ferreira, Marcelo de Andrade
Sammanfattning
Objective: The aim of this research was to evaluate the effect of different concentrate levels in diets based on cactus Opuntia Stricta (Haw.) Haw cladodes on the performance of lactating Girolando cows.Methods: The experiment involved 10 Girolando multiparous dairy cows at 512.6 kg of body weight (BW) and producing 13.2 kg milk/d, allocated into two 5x5 Latin squares. The experimental treatments consisted of control diet composed by cactus Nopalea cochenillifera. Salm-Dyck. cladodes (Nopalea), forage sorghum silage and concentrate at 20% on dry matter (DM) basis, and four concentrate levels diets (20%, 24%, 28%, and 32%) plus cactus Opuntia stricta (Haw.) Haw. cladodes (Opuntia) and forage sorghum silage.Results: Regarding cows fed control diet, the nutrients intake were greater than for cows fed with cactus Opuntia and concentrate. Regarding concentrate levels, intakes of DM, organic matter (OM), crude protein (CP), non-fiber carbohydrates (NFC), and total digestible nutrients of cows increased linearly. Organic matter, CP, and NDF digestibilities were similar in between to control diet and cactus Opuntia-based diets. The digestibility of NFC increased linearly when the concentrate was inserted. The N balance was the same for control diet and cactus Opuntia-based diets, irrespective the concentrate levels.Conclusion: For cows producing 14 kg/d with 3.5% of fat, it is recommended 32% of concentrate to be included in cactus Opuntia-based diets, and the increase in concentrate level promotes a linear increase in milk yield.
Nyckelord
Cactacea; Dairy Cattle; Feeding Efficiency; Semiarid
Publicerad i
Asian-Australasian journal of animal sciences
2020, Volym: 33, nummer: 1, sidor: 35-43
Utgivare: ASIAN-AUSTRALASIAN ASSOC ANIMAL PRODUCTION SOC
SLU författare
Globala målen
SDG2 Avskaffa hunger, uppnå tryggad livsmedelsförsörjning och förbättrad nutrition samt främja ett hållbart jordbruk
UKÄ forskningsämne
Husdjursvetenskap
Publikationens identifierare
DOI: https://doi.org/10.5713/ajas.18.0916
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/103554