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פותח על ידי קלירמאש פתרונות בע"מ -
The effect of maize grain supplementation of diets based on wheat straw and poultry litter on their utilization by beef cattle
Year:
1993
Source of publication :
Animal Feed Science and Technology
Authors :
אהרוני, יואב
;
.
ברוש, אריה
;
.
הולצר, צבי
;
.
Volume :
40
Co-Authors:
Brosh, A., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
Holzer, Z., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
Levy, D., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
Aharoni, Y., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
Facilitators :
From page:
165
To page:
175
(
Total pages:
11
)
Abstract:
Six diets were formulated in a factorial design of three poultry litter levels (15, 30 and 45% on a dry matter (DM) basis: low (L), medium (M) and high (H), respectively), and two maize grain levels (0 and 20% on DM basis: - and +, respectively). The rest of the ration in all diets was wheat straw. The in vivo digestibility of DM components, nitrogen balance and digesta mean retention time of these diets were tested on 15 beef intact male calves (initial weight 150 kg). They were allocated (five animals per diet) in individual digestion stalls to diets L-, M-, and H- for a first experimental period, and then to L+, M+ and H+ for a second period, in which each calf had the same poultry litter level as in the first period. Daily DM intake of diets L-, M-, H- was 2.04, 2.19 and 1.79 kg, and of diets L+, M+, H+ was 3.07, 3.37 and 3.16 kg, respectively. The respective digestibility coefficients of organic matter were 50.5, 56.4, 54.3 and 61.3, 61.8, 66.7%, and nitrogen retention was -8.47, -4.04, -9.80 and 8.41, 18.87, 14.21 g day-1. The replacement of 20% of the diet by maize grain almost doubled the digestible intake (14.8, 17.1, 13.2 MJ day-1 in diets L-, M-, H- and 29.2, 31.0, 30.8 MJ day-1 in diets L+, M+, H+, respectively). The mean retention time of fibres in the gastrointestinal tract and in the rumen was inversely related to the proportion of poultry litter in the diet, while the mean retention time of fluid was not affected. © 1993.
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More details
DOI :
10.1016/0377-8401(93)90154-C
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
30112
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:52
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Scientific Publication
The effect of maize grain supplementation of diets based on wheat straw and poultry litter on their utilization by beef cattle
40
Brosh, A., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
Holzer, Z., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
Levy, D., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
Aharoni, Y., Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa Post 31999, Israel
The effect of maize grain supplementation of diets based on wheat straw and poultry litter on their utilization by beef cattle
Six diets were formulated in a factorial design of three poultry litter levels (15, 30 and 45% on a dry matter (DM) basis: low (L), medium (M) and high (H), respectively), and two maize grain levels (0 and 20% on DM basis: - and +, respectively). The rest of the ration in all diets was wheat straw. The in vivo digestibility of DM components, nitrogen balance and digesta mean retention time of these diets were tested on 15 beef intact male calves (initial weight 150 kg). They were allocated (five animals per diet) in individual digestion stalls to diets L-, M-, and H- for a first experimental period, and then to L+, M+ and H+ for a second period, in which each calf had the same poultry litter level as in the first period. Daily DM intake of diets L-, M-, H- was 2.04, 2.19 and 1.79 kg, and of diets L+, M+, H+ was 3.07, 3.37 and 3.16 kg, respectively. The respective digestibility coefficients of organic matter were 50.5, 56.4, 54.3 and 61.3, 61.8, 66.7%, and nitrogen retention was -8.47, -4.04, -9.80 and 8.41, 18.87, 14.21 g day-1. The replacement of 20% of the diet by maize grain almost doubled the digestible intake (14.8, 17.1, 13.2 MJ day-1 in diets L-, M-, H- and 29.2, 31.0, 30.8 MJ day-1 in diets L+, M+, H+, respectively). The mean retention time of fibres in the gastrointestinal tract and in the rumen was inversely related to the proportion of poultry litter in the diet, while the mean retention time of fluid was not affected. © 1993.
Scientific Publication
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