a b s t r a c tThis study evaluated the effect of colostrum from Azawak cows on plasma protein profile, growth, and survival in Red kids from Niger. Forty (40) newborn kids were allocated to one of two treatment-groups: control (free access to water and the mother) and colostrum (free access to water and the mother, but with additional 50 mL of colostrum/animal/day of birth and 25 mL/animal/day from the 2nd to 15th day of age). Blood samples were collected into EDTA vacutainer tubes by jugular puncture at 10 and 30 days of age. Total protein was quantified by the Biuret method. The agarose gel electrophoresis was used to determine the serum levels of albumin, ␣-globulin,  1 -globulin,  2 -globulin, ␥-globulin and the albumin/globulin ratio. The animals from the colostrum group showed higher body weight and average daily gain when compared to the control group (P < 0.001). The average concentration in protein at the both sampling times reached higher values in the colostrum than in the control group. At D10, the colostrum group tended (P < 0.07) to show higher levels of ␣-globulin and had higher values (P < 0.05) for  1 -globulin. At D30, total protein and  2 -globulins were higher in colostrum group. Colostrum from Azawak cows seems to have positive effects on some plasma proteins levels and on growth rate in Red kids.
The aim of this study is to evaluate the efficacy of frozen Azawak colostrum supplementation on body weight (BW), average daily gain (ADG), reproductive parameters (mean age at first parturition, fertility, fecundity, prolificacy) and mortality rate among red kids. The study was conducted at the goat farm secondary centre of Maradi in Niger from September 2010 to September 2011. The control animals (n = 20) were left with their mother, while the treatment animals (n = 20) received in addition 50 ml/animal/day of bovine colostrum at birth and 15 ml/animal/day from d2 to d15. Weight was measured weekly from birth to d365. Mortalities were also recorded over the same period. For reproductive parameters, observations began at weaning (d197). Growth rate was higher (p < 0.001) in supplemented animal, and the treatment effects on ADG were observed up to 150 day after the end of supplementation. A similar long-lasting trend was also observed in relation to the mortality rate (25% for ColG vs. 55% for ConG; p = 0.05). The age at first kidding tended to be lower in the treated group (13.8 ± 0.7 vs. 14.1 ± 0.8 month; p < 0.1). In conclusion, mild bovine colostrum supplementation induces a long-lasting positive impact on growth rate and to a lower extent on reproduction parameters and survival rate.
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