Wafa, W., Farag, M., El-Kishk, M. (2020). Productive and Reproductive Performances of Primi-parous Friesian Cows Treated with Yeast Culture. Journal of Animal and Poultry Production, 11(9), 331-337. doi: 10.21608/jappmu.2020.118216
W. M. Wafa; Mona A. Farag; M. A. El-Kishk. "Productive and Reproductive Performances of Primi-parous Friesian Cows Treated with Yeast Culture". Journal of Animal and Poultry Production, 11, 9, 2020, 331-337. doi: 10.21608/jappmu.2020.118216
Wafa, W., Farag, M., El-Kishk, M. (2020). 'Productive and Reproductive Performances of Primi-parous Friesian Cows Treated with Yeast Culture', Journal of Animal and Poultry Production, 11(9), pp. 331-337. doi: 10.21608/jappmu.2020.118216
Wafa, W., Farag, M., El-Kishk, M. Productive and Reproductive Performances of Primi-parous Friesian Cows Treated with Yeast Culture. Journal of Animal and Poultry Production, 2020; 11(9): 331-337. doi: 10.21608/jappmu.2020.118216
Productive and Reproductive Performances of Primi-parous Friesian Cows Treated with Yeast Culture
1Cattle Breeding Research Department, Animal Production Research Institute, Agricultural Research, Dokki, Giza, Egypt.
2Animal Nutrition Research Department, Animal Production Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
Abstract
This study was conducted to evaluate the effect of dietary supplementation of dairy cows with yeast culture (YC) on productivity and reproduction of primi-parous cows. Animals in the 1st group were fed the control ration (G1), while those in G2 and G3 were fed control ration with 20 and 40 g/h/d yeast culture (n=5 in each) during experimental period of 90 days prepartum and 90 days postpartum. Results show that CF digestion pre- and post-partum, body weight (30 and 90-d postpartum), body condition score (one-d prepartum and 90-d postpartum), daily actual and 4% FCM milk yield, milk fat, total solids and solids not fat contents were higher (P<0.05) in G2 and G3 than in G1, being the highest in G3. Uterine involution was earlier (P<0.05) by 7.6 d and calf performance parameters was better in G3 than in G1. Postpartum 1st estrus interval, days open, P4 at estrus, service period and number of services/conception reduced (P<0.05) in G3 with best conception rate. Serum immunoglobulins (IgG, IgM and IgA) at 0 and 24 h post-calving, RBCs and WBCs counts, hemoglobin, hematocrit, and serum biochemicals in cows and their calves in G3 were the highest (P<0.05), whilst ALT and AST activities were the lowest in cows and calves in G3. The current study may conclude that dietary supplementation pre- and post-partum with yeast culture (40 g/h/day) can enhance productive and reproductive performances of primi-parous cows, and immune response, healthy status of cows and their offspring.
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