Causes of Reproductive Inefficiency in Lactating Dairy Cattle - AgWeb

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Energy Balance Nutrient Intake Body Condition Loss Maintenance Milk Production Body Condition Gain Reproduction
• Elephant seals The Cow is not Alone! – 28 d lactation (fastening) – Pup body weight gains = 10% of BW/d – Use of maternal body reserves • 42% loss of body weight (reduction of 58% in body fat and 14% in lean weight) • Baleen whales – 50 x 10 3 kg body weight gain during pregnancy – 7 mo lactation producing 90 kg/d of milk at ~40% fat and 12% protein – Almost no feed intake
Page 1 and 2: Causes of Reproductive Inefficiency
Page 3 and 4: Physiological Factors Affecting Rep
Page 5 and 6: Lucinda's Lactation: 67,914 lb At P
Page 7 and 8: Effect of Milk Yield on Reproductiv
Page 9 and 10: Embryo Quality: Dry vs. Lactating C
Page 11: Dairy Cow Lactation Cycle Energy (d
Page 15 and 16: 1. Basal metabolism 2. Activity 3.
Page 17 and 18: 3.0 > 3.25 3.0 < 2.75 3.25 > 3.25 E
Page 19 and 20: Effect of BCS at 65 DIM on Proporti
Page 21 and 22: Resumption of Cyclicity Influences
Page 23 and 24: Effect of BCS at 60 DIM on AI Submi
Page 25 and 26: Effect of BCS Change on Pregnancy p
Page 27 and 28: Average BCS: 2.84 3.57 4.36 Effect
Page 29 and 30: Effect of BCS Change during the Dry
Page 31 and 32: Association Between Days Open and B
Page 33 and 34: Impact of Mastitis on Pregnancy Ris
Page 35 and 36: Effect of Uterine Pathogen Load on
Page 37 and 38: Subclinical Endometritis and P/AI a
Page 39 and 40: Correlation Between Occurrence of M
Page 41 and 42: Relationship Among AI Protocol, Pre
Page 43 and 44: Timing of First GnRH and Ovulation
Page 45 and 46: Effect of Synchronization Protocol
Page 47 and 48: Take Home Messages • Lactation is
Page 49 and 50: • TAI programs Take Home Messages
Page 51 and 52: • 4 TH Conference • November 12

Causes of Reproductive Inefficiency in Lactating Dairy Cattle - AgWeb

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