Access the full text.
Sign up today, get DeepDyve free for 14 days.
K. Plaut, Theresa Casey (2012)
Does the circadian system regulate lactation?Animal : an international journal of animal bioscience, 6 3
D. Spiers, J. Spain, J. Sampson, R. Rhoads (2004)
Use of physiological parameters to predict milk yield and feed intake in heat-stressed dairy cowsJournal of Thermal Biology, 29
J. Restle, Paulo Pacheco, J. Moletta, I. Brondani, Liliane Cerdótes (2003)
Grupo genético e nível nutricional pós-parto na produção e composição do leite de vacas de corteRevista Brasileira De Zootecnia, 32
LJ Cerdótes, DC Restle, MF Alves Filho, BL Nörnberg, JL Nörnberg, I Heck, MF Silveira (2004)
Production and composition of milk of cows of four genetic groups submitted to two feeding managements during the lactation periodRevista Brasileira de Zootecnia, 33
(2001)
Nutrients requirements of dairy cattle
P. Kendall, P. Nielsen, J. Webster, G. Verkerk, R. Littlejohn, L. Matthews (2006)
The effects of providing shade to lactating dairy cows in a temperate climateLivestock Science, 103
E Detmann, MA Souza, SC Valadares Filho, AC Queiroz, TT Berchielli, EOS Saliba, LS Cabral, DS Pina, MM Ladeira, JAG Azevedo (2012)
Métodos para análise de alimentos, (Suprema, Visconde do Rio Branco)
T. Valente, E. Detmann, A. Queiroz, S. Filho, D. Gomes, J. Figueiras (2011)
Evaluation of ruminal degradation profiles of forages using bags made from different textilesRevista Brasileira De Zootecnia, 40
Y. Chilliard, A. Ferlay, J. Rouel, G. Lamberet (2003)
A review of nutritional and physiological factors affecting goat milk lipid synthesis and lipolysis.Journal of dairy science, 86 5
Isis Lazzarini, E. Detmann, Cláudia Sampaio, M. Paulino, S. Filho, Marjorrie Souza, F. Oliveira (2007)
Dinâmicas de trânsito e degradação da fibra em detergente neutro em bovinos alimentados com forragem tropical de baixa qualidade e compostos nitrogenadosArquivo Brasileiro De Medicina Veterinaria E Zootecnia, 61
Liliane Cerdótes, J. Restle, D. Filho, M. Nörnberg, J. Nörnberg, I. Heck, M. Silveira (2004)
Produção e composição do leite de vacas de quatro grupos genéticos submetidas a dois manejos alimentares no período de lactaçãoRevista Brasileira De Zootecnia, 33
D. Almeida (2017)
Effects of supplementation levels on performance and metabolic and nutritional characteristics of cows, suckling female calves and heifers on grazing
B. Rémond, D. Pomiès, C. Julien, J. Guinard-Flament (2009)
Performance of dairy cows milked twice daily at contrasting intervals.Animal : an international journal of animal bioscience, 3 10
M. Klopčič, W. Koops, A. Kuipers (2013)
Technical note: A mathematical function to predict daily milk yield of dairy cows in relation to the interval between milkings.Journal of dairy science, 96 9
M. Tekerli̇, Z. Akinci, I. Dogan, A. Akcan (2000)
Factors affecting the shape of lactation curves of Holstein cows from the Balikesir Province of Turkey.Journal of dairy science, 83 6
(1996)
Nutrients requirements of beef cattle
A. Clements, F. Ireland, T. Freitas, H. Tucker, D. Shike (2017)
Effects of supplementing methionine hydroxy analog on beef cow performance, milk production, reproduction, and preweaning calf performance.Journal of animal science, 95 12
V. Gantner, S. Jovanovac, M. Klopčič, M. Cassandro, N. Raguž, K. Kuterovac (2009)
Methods for estimation of daily and lactation milk yields from alternative milk recording scheme in Holstein and Simmental cattle breedsItalian Journal of Animal Science, 8
K. Harvatine (2012)
Circadian patterns of feed intake and milk composition variability.
A. Silva, M. Paulino, L. Amorim, E. Detmann, L. Rennó, M. Duarte, F. Moura, Luciano Melo, P. Paiva, Marcos Manso, Victor Carvalho (2017)
Weight, body condition, milk production, and metabolism of Nellore cows when their calves are submitted to different supplementation levelsTropical Animal Health and Production, 49
P. Rodrigues, Leonardo Menezes, R. Azambuja, R. Suñé, I. Silveira, Fernando Cardoso, Fernando Cardoso (2014)
Milk yield and composition from Angus and Angus-cross beef cows raised in southern Brazil.Journal of animal science, 92 6
Beef cows’ milk yield is typically determined by measuring milk yield once daily and then doubling this value to estimate daily production. However, it is not known whether this is accurate. Thus, we aimed to determine the association between morning and afternoon milk yield in grazing Nellore cows. Eighty Nellore cows were used, with initial weight of 516.0 ± 1.0 kg. The experiment was a completely randomized factorial scheme, with 20 replications and four treatments (i.e., + or − pre-partum supplementation in combination with + or − post-partum supplementation): PRMM—1 kg of supplement/cow/day for 90 days pre-partum; MMPS—1 kg of supplement/cow/day for 90 days post-partum; PRPS—1 kg of supplement/cow/day for 90 days pre-partum and 90 days post-partum; and MM—only mineral mix ad libitum during pre- and post-partum. Milk was sampled on days 45, 135, and 225 post-partum (early, middle, and late lactation, respectively). No effects were observed of pre- and post-partum supplementation on milk yield (P > 0.05). The afternoon/morning proportion of 0.45 in the early third of lactation was higher than other stages, which had a proportion of 0.41 (P < 0.05). Post-partum supplementation increased milk protein in the morning and afternoon milking (P < 0.05). There was also no effect of pre- and post-partum supplementation on afternoon-morning proportion other milk components (P > 0.05). We conclude that estimating daily milk production of grazing beef cattle by multiplying a once daily milking amount times two is not accurate. Under the conditions of this study, proportion of total daily production represented by the ratio of afternoon/morning milking was 0.45 in early lactation (first third) and 0.41 in mid- and late lactation.
Tropical Animal Health and Production – Springer Journals
Published: May 28, 2018
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.