Effect of Formaldehyde Treated Barley in Awassi Ewes Rations in Milk Production and some Chemical and Microbial Traits of Yogurt

Hassan, Ghanim M.; Almallah, Omar D.; Abo, Nadir Y.; Abdullah, Mohammed N.

doi:10.33899/rjs.2019.163153

	Effect of Formaldehyde Treated Barley in Awassi Ewes Rations in Milk Production and some Chemical and Microbial Traits of Yogurt
Rafidain Journal of Science
Article 7, Volume 28, Issue 3, 2019, Pages 17-23 PDF (532.32 K)
Document Type: Research Paper
DOI: 10.33899/rjs.2019.163153
Authors
Ghanim M. Hassan^* ¹; Omar D. Almallah^* ²; Nadir Y. Abo^* ³; Mohammed N. Abdullah^* ³
¹Department of Feeds Science/ College of Agriculture and Forestry/ University of Mosu
²Department of Animal Production/ College of Agriculture and Forestry/ University of Mosu
³State Board of Agriculture Research/ Ministry of Agriculture/ Iraq
Abstract
This study was conducted in research department of animal resource/ Al-Rashidiya, at ministry of agriculture by using 14 of genetically improved awassi ewes, average body weight 56.00 ± 2.10 kg and age ranged between 3-5 years. Ewes were allocated according to their weight and milk production into two groups. The first was control (T1), fed on ration consist mainly of untreated barley and contain 9.69% of degradable protein and 3.77% of undegradable protein as dry matter. The second group (T2) was fed on same control ration but barley grain were treated with formaldehyde and contain 9.63% degradable protein and 6.37% of undegradable protein as dry matter, the two rations are nearest in its content of metabolizable energy. Results are indicated to a significant increase ( p > 0.05 ) in milk production in T2 which were 1.322 kg/day as compared to T1 which were 1.128 kg/day, milk components did not differ significantly between the two groups, but the quantity of lactose, fat and protein increased significantly ( p > 0.05 ) in T2 as compared to T1. No significant differences were noted in yogurt composition, but the total number of bacteria and colonic bacteria decreased in T2 ( 52.10 x 10³and 4.16 x 10¹) compared to T1 ( 55.66 x 10³ and 5.33 x 10¹) respectively.
Keywords
barley; Formaldehyde; Milk production; microbial tests

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