TY  - JOUR
T1  - Pregnancy Rate in Anestrous <I>Bos taurus </I>x<I> Bos indicus</I> Crossbred Cows with Low Body Condition after Treatment with a Cidr Insert, Estradiol and Synthetic Progesterone in a Tropical Environment
AU - Palacios, Felipe Montiel AU - Huerta, Rosendo Cuicas AU - Gonzalez, Ruben Garcia AU - Aguirre, Concepcion Ahuja 
JO  - Journal of Animal and Veterinary Advances
VL  - 10
IS  - 14
SP  - 1774
EP  - 1778
PY  - 2011
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2011.1774.1778
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2011.1774.1778
KW  - Anestrous
KW  -CIDR
KW  -Mexico
KW  -progesterone
KW  -Bos taurus x Bos indicus
KW  -estradiol
AB  - The effect of treatment with natural and synthetic progesterone and estradiol on pregnancy rate in anestrous and lactating <I>Bos taurus</I> x <I>Bos indicus</I> crossbred cows with low body condition in a tropical environment was determined. On day 0, 107 anestrous cows were assigned randomly to five treatments; CIDR+ECP+P4 (n = 24), 1.9 g natural progesterone contained in a vaginal insert (CIDR), left 9 days <I>in situ</I> + i.m. 2 mg Estradiol Cypionate (ECP) and 100 mg synthetic Progesterone (P4); CIDR+ECP (n = 22): CIDR + i.m. 2 mg ECP; CIDR+EB+P4 (n = 20), CIDR + i.m. 10 mg Estradiol Benzoate (EB) and 100 mg P4; CIDR+EB (n = 21), CIDR + i.m. 10 mg EB and control (n = 20) i.m. 5 mL saline solution. The CIDR-treated cows received artificial insemination 48-56 h after CIDR removal and the control cows at 12 h after detected estrus. Pregnancy rate was 20.8% for CIDR+ECP+P4, 22.7% for CIDR+ECP, 10% for CIDR+EB+P4, 9.5% for CIDR+EB and 0% for the control group (p&gt;0.05). Treatments used in this study resulted in similar pregnancy rates in anestrous <I>Bos taurus </I>x<I> Bos indicus </I>crossbred cows with low body condition.
ER  -