Archiva Zootehnica Vol. 6, 2001

Table of contents

3

Draganescu C, Doina Grossu, G. Margineanu, St. Popescu Vifor
Note on the animal production and animal science in Romania

7

Elena Ghita, Ionica Drinca, M. Paraschivescu
Preservation of pure breed sheep dam/sire in crossings from commercial stocks

11

Fl. Pricop, Lavinia Stanescu, I. Betianu, V. Teodorescu
Genetic determinism of feather color in ROSO SL-2000 hybrid broilers

17

Fl. Pricop
Genetic determinism of sex in poultry

25

Doina Grossu, Monica Pârvu, Monica Iliescu, Andreea Iofciu
Efficiency of dietary energy utilization in hens under thermal stress

31

Alexandrina Dihoru, I. Voicu, Margareta Olteanu, C. Dragomir
Ingestion and digestion aptitudes of Sudan hay-based diets by cattle and buffaloes

34

Rodica Diana Criste, Taranu Ionelia, Anca Bercaru, Gh. Burlacu, Claudia Mihaila, R. Burlacu
Research on phosphorus (P) availability in diets for layers raised under conditions of heat stress (320C), premise for decreasing the inorganic supplements

43

Veronica Hebean, I. Moldovan, D. Preoteasa, Mihaela Habeanu, Al. Lionide, Claudia Mihaila
New calcium sources used in pig feeding

51

Nicolae M., C. Dragomir, Smaranda Pop, A.Calin
Influence of dietary corn silage level on young Brown cattle performance

57

Nicolae M., C. Popescu, A. Calin, C. Dragomir
Influence of compound feed amount on silage intake and weight gain in steers

63

Monica Iliescu, Doina Grossu, Andreea Iofciu, S. Diaconescu
Nutritive value of rice polishing used in growing pigs feeding

71

Margareta Olteanu, Alexandrina Dihoru, I. Voicu, C. Dragomir
Studies on the ruminal degradation in cows fed on alfalfa and barley-based diets

75

Georgeta Ciurescu, I. Moldovan, Anca Vasile
Bioproductive effect of a protein concentrate on the performance of broiler chicks

83

Dorica Voicu, Gh. Burlacu, I. Voicu
Investigations on the energy metabolism in growing cattle. growing buffaloes and weathers fed on different diet structures

89

Dragomir C., M. Nicolae, T. Stoica, G. Petrescu, C. Popescu
Optimizing the structure of calf diets focusing on IDP quality

95

Smaranda Pop, M. Nicolae, C. Dragomir, G. Petrescu, A. Calin, D. Colceri
Influence of the dietary protein level on the quality of cow milk

101

Smaranda Pop, M. Nicolae, C. Dragomir, A. Calin
Influence of restricted/unrestricted feeding on the production performance of growing Brown cattle

107

Mihaela Habeanu, Veronica Hebean, I. Moldovan, Constanta Bem, Claudia Mihaila
Research on dietary phosphorus bioavailability in weaned piglets using exogenous enzymes

113

Monica Pârvu, Andreea Iofciu, Doina Grossu, Monica Iliescu
Efficiency of toasted fullfat soybeans utilization in broiler feeding

121

Elena Popescu-Miclosanu, Consuela Roibu
Research on the influence of dietary energy on the growth performance and meat quality in the Muscovy ducks. 1. Effects of high and medium levels of metabolic energy

125

Elena Popescu-Miclosanu, Consuela Roibu
Research on the influence of dietary energy on the growth performance and meat quality in the Muscovy ducks. 1. Effects of medium and low levels of metabolic energy in mixed feed

133

Cristina Tabuc, Floarea Borcea, Carmen Badea, Daniela Marin
Reduction of the polluting effect of droppings using a dietary microbial preparation in broiler feeding

139

Carmen Gratiela Badea
Physical methods used to determine milk replacer structure

143

Hisham Fouad Greiss, Georgeta Dinita, Doina Brailoiu Tanase
Study on the addition of balanced secondary and micronutrients to mulberry plantations in Egyptian conditions

151