Effects of postpartum dietary fat and body condition score at parturition on plasma, adipose tissue, and milk fatty acid composition of lactating beef cows1

The development of body condition score (BCS) and milk fatty acid composition and its mutual relationships were evaluated in the first 4 weeks of lactation of 50 Czech Fleckvieh cows. Average BCS values ranged from 4.14 at calving to 3.6 points in the 4th week of lactation. The percentage of saturated fatty acids (SFA) tended to slightly increase (69.1 to 71.3%), whereas the percentage of unsaturated fatty acids (UFA) tended to decrease (30.9 to 28.7%). The animals used were divided to three groups according to the BCS change between calving and week 4 of lactation. The cows with a minimum BCS loss during the first 4 weeks postpartum (–0.03 points) showed higher (+2.16 to 5.24%; P < 0.05) SFA proportions than those having BCS loss more than 1 point. An opposite tendency was observed for UFA, with the highest (+1.23 to 5.26%; P < 0.05) proportion found in the animals with the greatest BCS loss (≥ 1 point). These results indicate that high proportions of milk UFA related with a deep negative energy balance expressed by the highest BCS loss (≥ 1 point). The correlations between BCS at calving, BCS in the 1st and 2nd week of lactation, and proportion of fatty acid groups determined in the 4th week ranged from r = 0.29 to r = 0.41 (P < 0.05).

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114 Effect of Body Condition Score on Fatty Acid Composition of Equine Visceral Adipose Tissues

Journal of Animal Science ◽

10.2527/ssasas2017.0114 ◽

2016 ◽

Vol 95 (suppl_1) ◽

pp. 56-56

Author(s):

A. L. Greene ◽

R. M. Humphrey ◽

A. Theradiyil Sukumaran ◽

E. N. Ferjak ◽

R. L. Lemire ◽

...

Keyword(s):

Fatty Acid Composition ◽

Fatty Acid ◽

Acid Composition ◽

Body Condition ◽

Body Condition Score ◽

Adipose Tissues ◽

Condition Score ◽

Visceral Adipose

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Lipogenic activity in Rasa Aragonesa ewes of different body condition score

Canadian Journal of Animal Science ◽

10.4141/a04-020 ◽

2005 ◽

Vol 85 (1) ◽

pp. 101-105 ◽

Cited By ~ 4

Author(s):

A. Arana ◽

J. A. Mendizabal ◽

R. Delfa ◽

P. Eguinoa ◽

B. Soret ◽

...

Keyword(s):

Enzyme Activity ◽

Adipose Tissue ◽

Fatty Acid ◽

Body Condition ◽

Fatty Acid Synthase ◽

Body Condition Score ◽

Lipogenic Enzyme ◽

Adipocyte Size ◽

Metabolic Characteristics ◽

Condition Score

The aim of the study was to assess the effect of body condition score on tissue and metabolic characteristics of the adipose depots in sheep of Rasa Aragonesa breed. Ewes were uniformly assigned according to their body condition score (BCS) (scale 0 to 5), to four groups: 0.75–1.75, 2–2.75, 3–3.75, and 4–4.5. The amount of fat and the adipocyte size in the different adipose depots increased as BCS did (P < 0.001) while the number of adipocytes did not change. The greatest ability to accumulate or mobilize fat was the subcutaneous depot (slope of the regression between amount of fat and BCS, b = 1.92; P < 0.001). Fatty acid synthase (FAS) lipogenic enzyme activity was affected by BCS, while G3-PDH and G6-PDH activities were not. Key words: Adipose tissue, body condition score, adipocyte size, lipogenic enzyme activity, ewes

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