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Season of birth is associated with first-lactation milk yield in Holstein Friesian cattle

Mieke Van Eetvelde UGent, Md. Mostofa Kamal, Leen Vandaele UGent and Geert Opsomer UGent (2017) ANIMAL. 11(12). p.2252-2259
abstract
The aim of the present research was to assess factors associated with first-lactation milk yield in dairy heifers, including maternal and environmental factors, factors related to the development of the heifer and factors related to its offspring such as gender of the calf. In addition, the potential underlying mechanism, in particular metabolic adaptations, was further explored. Data on body growth, reproduction and milk yield of 74 Holstein Friesian heifers on three herds in Flanders (Belgium) were collected. At birth, body measurements of the heifers were recorded and blood samples were taken (in order) to determine basal glucose and insulin concentrations. Body measurements were assessed every 3 months until first calving, and gender and weight of their first calf were recorded. Information on fertility and milk yield of the heifer and its dam were collected from the herd databases. Daily temperature and photoperiod were recorded from the database of the Belgian Royal Meteorological Institute. Linear mixed models were run with herd as a random factor, to account for differences in herd management. Heifers grew 867 +/- 80.7 g/day during their first year of life and were inseminated at 14.8 +/- 1.34 months. First calving took place at 24.5 +/- 1.93 months, at a weight of 642 +/- 61.5 kg and heifers produced 8506 +/- 1064 kg energy corrected milk during their first 305-day lactation. Regression models revealed that none of the maternal factors such as milk yield and parity, nor the growth of the heifer during the 1(st) year of life were associated with milk yield during first lactation. Age, and to a lesser extent BW at first parturition were positively associated with first-lactation milk yield. In addition, the season of birth, but not calving, had a significant influence on milk yield, with winter-born heifers producing less than heifers born in any other season. The lower yielding winter-born heifers had higher insulin concentrations at birth, whereas glucose concentrations were similar, the latter being suggestive for lower insulin sensitivity of the peripheral tissues. Furthermore, environmental temperature at the end of gestation was negatively correlated with neonatal insulin concentrations. In conclusion, results of the present study suggest heifers born during the hotter months are born with a higher peripheral insulin sensitivity, finally leading to a higher first-lactation milk yield.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
heifer, milk yield, birth season, age at first calving, insulin concentration, INTRAUTERINE GROWTH RESTRICTION, DAIRY-COWS, HEAT-STRESS, INSULIN-SECRETION, FETAL SHEEP, AGE, HEIFERS, CALVES, FERTILITY, LACTATION
journal title
ANIMAL
Animal
volume
11
issue
12
pages
2252 - 2259
Web of Science type
Article
Web of Science id
000416121800017
ISSN
1751-7311
1751-732X
DOI
10.1017/s1751731117001021
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8548493
handle
http://hdl.handle.net/1854/LU-8548493
date created
2018-02-08 13:18:15
date last changed
2018-03-02 10:31:19
@article{8548493,
  abstract     = {The aim of the present research was to assess factors associated with first-lactation milk yield in dairy heifers, including maternal and environmental factors, factors related to the development of the heifer and factors related to its offspring such as gender of the calf. In addition, the potential underlying mechanism, in particular metabolic adaptations, was further explored. Data on body growth, reproduction and milk yield of 74 Holstein Friesian heifers on three herds in Flanders (Belgium) were collected. At birth, body measurements of the heifers were recorded and blood samples were taken (in order) to determine basal glucose and insulin concentrations. Body measurements were assessed every 3 months until first calving, and gender and weight of their first calf were recorded. Information on fertility and milk yield of the heifer and its dam were collected from the herd databases. Daily temperature and photoperiod were recorded from the database of the Belgian Royal Meteorological Institute. Linear mixed models were run with herd as a random factor, to account for differences in herd management. Heifers grew 867 +/- 80.7 g/day during their first year of life and were inseminated at 14.8 +/- 1.34 months. First calving took place at 24.5 +/- 1.93 months, at a weight of 642 +/- 61.5 kg and heifers produced 8506 +/- 1064 kg energy corrected milk during their first 305-day lactation. Regression models revealed that none of the maternal factors such as milk yield and parity, nor the growth of the heifer during the 1(st) year of life were associated with milk yield during first lactation. Age, and to a lesser extent BW at first parturition were positively associated with first-lactation milk yield. In addition, the season of birth, but not calving, had a significant influence on milk yield, with winter-born heifers producing less than heifers born in any other season. The lower yielding winter-born heifers had higher insulin concentrations at birth, whereas glucose concentrations were similar, the latter being suggestive for lower insulin sensitivity of the peripheral tissues. Furthermore, environmental temperature at the end of gestation was negatively correlated with neonatal insulin concentrations. In conclusion, results of the present study suggest heifers born during the hotter months are born with a higher peripheral insulin sensitivity, finally leading to a higher first-lactation milk yield.},
  author       = {Van Eetvelde, Mieke and Kamal, Md. Mostofa and Vandaele, Leen and Opsomer, Geert},
  issn         = {1751-7311},
  journal      = {ANIMAL},
  keyword      = {heifer,milk yield,birth season,age at first calving,insulin concentration,INTRAUTERINE GROWTH RESTRICTION,DAIRY-COWS,HEAT-STRESS,INSULIN-SECRETION,FETAL SHEEP,AGE,HEIFERS,CALVES,FERTILITY,LACTATION},
  language     = {eng},
  number       = {12},
  pages        = {2252--2259},
  title        = {Season of birth is associated with first-lactation milk yield in Holstein Friesian cattle},
  url          = {http://dx.doi.org/10.1017/s1751731117001021},
  volume       = {11},
  year         = {2017},
}

Chicago
Van Eetvelde, Mieke, Md. Mostofa Kamal, Leen Vandaele, and Geert Opsomer. 2017. “Season of Birth Is Associated with First-lactation Milk Yield in Holstein Friesian Cattle.” Animal 11 (12): 2252–2259.
APA
Van Eetvelde, M., Kamal, M. M., Vandaele, L., & Opsomer, G. (2017). Season of birth is associated with first-lactation milk yield in Holstein Friesian cattle. ANIMAL, 11(12), 2252–2259.
Vancouver
1.
Van Eetvelde M, Kamal MM, Vandaele L, Opsomer G. Season of birth is associated with first-lactation milk yield in Holstein Friesian cattle. ANIMAL. 2017;11(12):2252–9.
MLA
Van Eetvelde, Mieke, Md. Mostofa Kamal, Leen Vandaele, et al. “Season of Birth Is Associated with First-lactation Milk Yield in Holstein Friesian Cattle.” ANIMAL 11.12 (2017): 2252–2259. Print.