China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (10): 4313-4323.doi: 10.16431/j.cnki.1671-7236.2024.10.012

• Nutrition and Feed • Previous Articles     Next Articles

Nutritional Effects of 25-hydroxyvitamin D3 on Primiparous and Mulitiparous Periparturient Dairy Cows

QIU Qing1,2, ZHAO Meng3, WANG Dian4,5, CHEN Yakun2, ZHAO Liansheng2, ZANG Changjiang1   

  1. 1. Xinjiang Key Laboratory of Herbivore Nutrition for Meat & Milk, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China;
    2. National Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science of CAAS, Beijing 100193, China;
    3. Modern Farming (Group) Co., Ltd., Ma'anshan 243000, China;
    4. College of Animal Science and Technology, Inner Mongolia Agricultural University, Hohhot 010018, China;
    5. Inner Mongolia You Ran Herding Co., Ltd., Hohhot 010070, China
  • Received:2024-04-07 Online:2024-10-05 Published:2024-09-30

Abstract: 【Objective】 This study was aimed to explore the organism response of dairy cows with different parities to 25 hydroxyvitamin D3,analyze the influence of parity on the production performance of dairy cows,postpartum disease incidence and the growth performance of progeny calves,and then reveal the specific role of periparturient dairy cows parity on the nutritional effect of 25 hydroxyvitamin D3. 【Method】 Twenty-six healthy Holstein dairy cows with a consistent body condition score (3.25) and 21 days before the expected date of calving were selected and assigned to primiparous group (parity=1,n=11) and mulitiparous group (parity≥2,n=15) according to parity size. All dairy cows were fed a uniform ration,which was supplemented with 3 mg of 25-hydroxyvitamin D3 per head per day for 82 days (the 22nd days was the expected calving day). Daily milk production was recorded,and milk samples were collected at 0,7,and 21 days post-calving for milk composition testing. Feed and blood samples were collected at 21 and 7 days prior to calving (―21 and ―7 days),on the day of delivery (0 days),and 7 and 21 days after calving. Blood samples were collected from dairy cows and progeny calves to test the routine nutrients in feed,blood immunity and antioxidant indexes,and blood bone and collagen metabolism indexes,respectively. The body weight and body size of progeny calves were measured at both 0 and 60 d. 【Result】 ①Compared with primiparous dairy cows,the milk yield of mulitiparous dairy cows at 7 and 21 d postpartum was extremely significantly or significantly increased (P<0.01 or P<0.05),the non-fat milk solids of mulitiparous cows at 7 d postpartum were significantly decreased (P<0.05). ②Compared with mulitiparous dairy cows,the immunogbulin G (IgG) content of blood in primiparous dairy cows was significantly decreased (P<0.05). The calcitonin (CT) contents of blood in mulitiparous dairy cows at ―21 and ―7 d of calving were significantly increased (P<0.05). The tartrate-resistant acid phosphatase (TRAP) levels of blood in mulitiparous dairy cows at 7 d of calving were extremely significantly increased (P<0.01),the contents of CT and IgM were significantly decreased (P<0.01),while the tumor necrosis factor-α (TNF-α) content was extremely significantly increased (P<0.01). The contents of IgM and TNF-α of blood in mulitiparous dairy cows at 21 d of calving were significantly or extremely significantly increased (P<0.05 or P<0.01). ③At 60 days of age,the body height of progeny calves of mulitiparous dairy cows was extremely significantly higher than that of progeny calves of primiparous dairy cows (P<0.01). 【Conclusion】 A significant difference was observed in the nutritional effects of 25-hydroxyvitamin D3 in primiparous and mulitiparous periparturient dairy cows. The administration of 25-hydroxyvitamin D3 during the perinatal period resulted in an enhancement of haematological immunocompetence in primiparous dairy cows,as well as an acceleration of bone and collagen metabolism in mulitiparous dairy cows. Additionally,the progeny calves of these dairy cows exhibited an increase in body height at 60 days of age.

Key words: 25-hydroxyvitamin D3; periparturient dairy cows; parity; productive performance; calving performance

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