Protein supplementation to early lactation dairy cows grazing tropical grass: Performance and ruminal metabolism

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Lucas Jado Chagas ◽  
Camila Delveaux Araujo Batalha ◽  
Marina Arruda Camargo Danés ◽  
José Maurício Santos Neto ◽  
Fernanda Lopes Macedo ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Protein Supplementation ◽  
Early Lactation ◽  
Tropical Grass

scholarly journals THE NUTRITIONAL BALANCE OF EARLY LACTATION DAIRY COWS GRAZING IN INTENSIVE SILVOPASTORAL SYSTEMS

2017 ◽  
Vol 18 (0) ◽  
Author(s):  
Elisa Sierra Montoya ◽  
Julian David Chará ◽  
Rolando Barahona-Rosales
Keyword(s):  
Dairy Cows ◽  
Negative Energy ◽  
Protein Supplementation ◽  
Metabolizable Energy ◽  
Early Lactation ◽  
Tropical Conditions ◽  
Forage Intake ◽  
Daily Milk Yield ◽  
To Receive ◽  
Daily Milk

Abstract A study was carried out to estimate the balance of metabolizable protein (MP), metabolizable energy (ME), calcium, and phosphorus in 12 recently calved (RC) and early lactation (EL, 42 - 50 days after calving) Gyr x Holstein dairy cows grazing in a Leucaena leucocephala and Cynodon plectostachyus intensive silvopastoral system (ISS) and receiving energy and protein supplementation. Dry matter (DM) availability from the grazing paddocks, nutrients offered and their balance were estimated. On average, the available forage DM per animal.day-1 was 44.7 kg for C. plectostachyus and 11.8 kg for L. leucocephala. EL cows had greater requirements of MP, ME, and minerals than RC cows. In RC cows, ME, MP, and mineral requirements were supplied by the total diet, while EL cows exhibited a negative energy balance. For both RC and EL cows, ME was the limiting dietary factor, whereas MP and P were found to be in excess. If cows were only to receive ISS forages with no supplementation, estimated daily milk yield would be 10 and 12 litters for RC and EL cows, respectively. Under tropical conditions, based on ISS forage intake, RC and EL cows can meet most of their ME, MP, calcium, and phosphorous requirements.

scholarly journals Effect of protein supplementation on milk production and metabolism of dairy cows grazing tropical grass

2013 ◽  
Vol 96 (1) ◽  
pp. 407-419 ◽  
Author(s):  
M.A.C. Danes ◽  
L.J. Chagas ◽  
A.M. Pedroso ◽  
F.A.P. Santos
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Protein Supplementation ◽  
Tropical Grass

scholarly journals Supplementation with Partially Hydrogenated Oil in Grazing Dairy Cows in Early Lactation

2002 ◽  
Vol 85 (3) ◽  
pp. 580-594 ◽  
Author(s):  
G.F. Schroeder ◽  
G.A. Gagliostro ◽  
D. Becu-Villalobos ◽  
I. Lacau-Mengido
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Hydrogenated Oil ◽  
Grazing Dairy Cows ◽  
Partially Hydrogenated Oil
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