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Table 3 Effect of lipid supplementation to lactation diets on the change in subsequent wean-to-estrus interval (WEI) and subsequent farrowing ratea,b

From: Optimizing dietary lipid use to improve essential fatty acid status and reproductive performance of the modern lactating sow: a review

     

Normal temperatures

High temperatures

Study

Referencec

Sows, nd

Sourcee

Level

Δ WEI, d

Δ Farrowing rate, %

Δ WEI, d

Δ Farrowing rate, %

1

[42]

64

Animal fat

10

−3.2

 

8.3*

 

2

[43]

52

Dried-fat

10

2.4

0.7

  

3

[24]

112

Corn oil

10

2

2.4

  

4

[30]

36

Soy oil

5

0.2*

   

5

[31]

84

A-V blend

2

  

1.4

10.0*

4

  

1.3

14.1*

6

  

1.2

7.2*

6

[32]

55

A-V blend

2

   

13.2*

4

   

4.2

6

   

13.2*

CWG

2

   

11.6*

4

   

5.8

6

   

13.9*

  1. aSummary of the results from 6 published studies from 1983 to 2012 that were not included in previous reviews and reported on supplemental dietary lipids in lactating sows diets
  2. bImprovement of lipid supplementation relative to lactation diets containing no added lipids
  3. cReferences are presented in chronological order
  4. dn refers to the number of observations per treatment
  5. eAnimal-vegetable blend (A-V blend), choice white grease (CWG)
  6. *P < 0.05
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Journal of Animal Science and Biotechnology

ISSN: 2049-1891