Dietary protein level and ruminal degradability for mohair production in Angora goats2

Sahlu, T.; Fernandez, J.M.; Lu, C.D.; Manning, R. O.

doi:10.2527/1992.7051526x

Cited by 42 publications

(14 citation statements)

References 25 publications

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“…Despite some researchers suggested that there was a correlation between plasma urea level and dietary protein level in sheep (Lindberg and Jacobbsson, 1990;Waghorn et al, 1990), Kronfeld et al (1982) suggested the opposite. This finding was in agreement with those obtained by Shalu et al (1992Shalu et al ( , 1993, Katunguka (1997) and Hatfield et al (1998). It was reported that normal blood glucose level in sheep was between 44.0-81.2 mg/dL.…”

Section: Blood Parameterssupporting

confidence: 93%

Effect of different dietary crude protein levels on performance, N digestibility and some blood parameters in Kivircik lambs

Keser¹,

Bilal²

2008

Acta vet. (Beogr.)

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In this study, 45 weaned Kivircik male lambs with an average initial body weight ŠBW¹ of 26.23 kg were randomly assigned to five experimental groups (G10, G12, G14, G16, G18) fed 10, 12, 14, 16, 18 % crude protein (CP), respectively. It was observed that G16 had higher BW than the first three groups (p<0.05), but there were no significant differences between G16 and G18. G16 had higher daily body weight gain ŠBWG¹ than other groups. During the study, when compared with first three groups, G16 had significantly higher BWG (p<0.05), but no significant difference was observed between G16 and G18. The lowest DMI was observed in G10 (p<0.05), however, there were no differences between G14, G16 and G18. The best and the lowest feed efficiency were observed in G16 and G10, respectively. When the analysis results of faeces samples were compared, the lowest nitrogen (N) excretion was detected in G10 and G12, and the highest N excretion was detected in G18 (p<0.05). However, there were no significant differences between G14 and G16. Percentages of N digestibility's of G16 and G18 were higher than those of other groups (p<0.05). There were no significant differences between G16 and G18, and between G10, G12 and G14. The analysis results of serum samples obtained from experimental groups showed that, except for serum urea and albumin levels, there were no significant differences between the level of other metabolites. G10 had lowest serum albumin level (p<0.05), and there were no significant differences between the other groups. Serum urea levels of G14, G16, G18 were similar and higher than those of G10 and G12 (p<0.05). The lowest serum urea level was determined in G10 (p<0.05). Consequently, when it was considered that feeding Kivircik lambs with higher protein level than 16 % had no advantage for performance and would be cause of economic loss, it can be said that 16 % CP was optimal

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Section: Blood Parameterssupporting

confidence: 93%

Effect of different dietary crude protein levels on performance, N digestibility and some blood parameters in Kivircik lambs

Keser¹,

Bilal²

2008

Acta vet. (Beogr.)

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“…It was reported that a plasma urea concentration below 12 mg/dL is due to the low level of crude protein in the ration or low amount of digestible protein in the rumen, and levels above 18 mg/dL are due to excessive amounts of crude protein or digestible protein in the rumen or low amounts of energy fermentable in the rumen, or an imbalance between those (23). On the other hand, it was reported that goats have higher plasma urea nitrogen than cattle and sheep (24); however, the results in this study are higher than the values reported for Angora goats (25). The reason for the discrepancies between these reports could be the differences among sources of nitrogen and energy constituting the ration composition used in the studies (23).…”

Section: Discussioncontrasting

confidence: 83%

Effects of supplementation of inorganic sulfur on some biochemical parameters in Angora goat’s diet containing high nitrate levels

Özdemir¹,

Eryavuz²,

Avcı³

et al. 2014

Turk J Vet Anim Sci

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The purpose of this study was to determine the effect of supplementation of sulfur to a diet containing sodium nitrate at a level that would cause chronic nitrate poisoning on some rumen and biochemical parameters in Angora goats. A total of 18 male Angora goats were used. The animals in the control group were fed the basal diet, while the animals were fed experimental concentrate containing 1500 mg/kg sodium nitrate in the nitrate group (N) and experimental concentrate containing 1500 mg/kg sodium nitrate plus 1.8% sodium sulfate in the nitrate-sulfur group (NS) throughout the study, which lasted for 6 months. While there were no differences among groups in live weights, nitrate supplementation to the diet increased the rumen nitrate content and the blood methemoglobin (MetHb) levels and decreased plasma vitamin A and carotene in the N and NS group. The supplementation of sulfur to a diet containing high sodium nitrate alleviated the negative effects of nitrate on the blood MetHb and plasma carotene significantly (P < 0.05). The results of this study suggest that Angora goats can tolerate diets containing the high sodium nitrate levels used in the present study, except for the results in regard to blood MetHb and plasma vitamin A and carotene.

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“…2 Likewise, lactating ewes or does consume twice as much water as that typical for nonlactating females: 7 to 15 L/day versus 3.5 to 7 L/day, respectively. [3][4][5][6] High sulfate concentrations in the range of 3500 to 5000 parts per million (ppm) may result in suppressed copper absorption from the intestine. Obviously, lactating dairy animals require even greater quantities of water.…”

Section: Watermentioning

confidence: 99%

“…6 If the goal is to have the females lamb or kid as yearlings, nutrition is crucial from weaning to breeding. Some operations place importance on breeding ewes and does so that they have their first offspring by 1 year of age.…”

Section: Feeding Yearlings Femalesmentioning

confidence: 99%

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Feeding and Nutrition

Rankins¹,

Pugh²

2012

Sheep and Goat Medicine

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Dietary protein level and ruminal degradability for mohair production in Angora goats2

Cited by 42 publications

References 25 publications

Effect of different dietary crude protein levels on performance, N digestibility and some blood parameters in Kivircik lambs

Effect of different dietary crude protein levels on performance, N digestibility and some blood parameters in Kivircik lambs

Effects of supplementation of inorganic sulfur on some biochemical parameters in Angora goat’s diet containing high nitrate levels

Feeding and Nutrition

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