Comparison of Milk yield and its composition for Local mountain, Damascus and Maraz Does breed raised in Akre region

Abstract

This study was done using 30 Local mountain does, 20 Maraz does and 19 Damascus does raised at three commercial flocks at Rasel Ain, Gali and Khalilka village in Akre region, during December, 2022 to July, 2023. Overall mean of milk traits which consist of average daily milk yield (ADMY), milk yield before weaning (MYBW), milk yield after weaning (MYAW) and total milk yield (TMY) were 0.928, 117.15, 77.81 and 194.97 kg, respectively. Breed and sex of kids had a high significant effect on all the above traits, while age of doe and month of kidding didn't affect the mentioned traits significantly. Overall mean of milk composition% (fat(F), protein(P), lactose(L), total solid(TS) and solid non-fat(SNF) before weaning were 2.86, 3.84, 4.81, 11.55 and 8.67 %, respectively and after weaning were 3.97, 3.41, 4.45, 12.48 and 8.57%, on the same order. Effect of breed was significant before weaning on all milk composition% except L%, while this effect was significant (P≤0.01) after weaning on all milk composition%. The effect of age of doe before weaning was significant (P≤0.01) on F%, P% and SNF% only, in addition, this effect was not significant on all milk composition after weaning. The effect of month of kidding was not significant of all milk composition before and after weaning except TS% was significant (P≤0.01). The effect of sex was significant (P≤0.01) on F%, P% and SNF%, before weaning and on F, TS and SNF% after weaning. The correlations between average daily milk yield (ADMY) and each of MYBY, MYAW and TMY were positive and highly significant. The correlations between ADMY with milk composition before and after weaning including P, L, TS and SNF% were all negative except that with F% and were significant.