RT article T1 Terminal Crossbreeding of Murciano-Granadina Goats to Boer Bucks: Effects on Reproductive Performance of Goats and Growth of Kids in Artificial Rearing A1 Pérez-Baena, Ion A1 Jarque-Durán, Marta A1 Gómez, Ernesto A. A1 Díaz, José-Ramón A1 Peris, Cristòfol K1 Murciano-Granadina K1 Boer K1 L01 Animal husbandry K1 L10 Animal genetics and breeding K1 L53 Animal physiology - Reproduction K1 L60 Animal taxonomy and geography K1 Goats K1 Kids K1 Reproductive performance K1 Growth AB The aim of this work was to improve the growth characteristics of Murciano-Granadina (MG) kids through terminal crossbreeding of MG goats to Boer bucks. Four experiments were carried out, using a total of 354 MG goats, half of which were mated with MG bucks (n = 12) and the other half with Boer bucks (n = 12). The kids were raised in artificial rearing until slaughter weight (9 kg). The birth weight and average daily gain were recorded in crossed kids (n = 197 and 145, respectively) and purebred kids (n = 257 and 169, respectively). Crossed kids presented significant differences (p < 0.001) compared to MG purebred kids in birth weight (+ 24%), mortality in artificial rearing (−37%), average daily gain (+32%) and milk powder conversion rate (−16%). However, the reproductive performance rates of MG goats mated with Boer bucks were slightly worse (pregnancy rate: 78.5% vs. 86.6%, p < 0.05; kidding rate: 62.0% vs. 75.7%; p < 0.01; prolificacy: 1.9 vs. 2.1 kids/parturition), especially when the matings took place in non-breeding season (experiments conducted at latitude 38–39° N). It is concluded that the terminal crossbreeding of MG goats to Boer bucks (those not used to produce replacement kids) could be an interesting option for ethical goat production. PB MDPI SN 2076-2615 YR 2021 FD 2021 LK http://hdl.handle.net/20.500.11939/7859 UL http://hdl.handle.net/20.500.11939/7859 LA en NO Pérez-Baena, I., Jarque-Durán, M., Gómez, E. A., Díaz, J. R. & Peris, C. (2021). Terminal Crossbreeding of Murciano-Granadina Goats to Boer Bucks: Effects on Reproductive Performance of Goats and Growth of Kids in Artificial Rearing. Animals, 11(4), 986. DS MINDS@UW RD May 20, 2022