ABSTRACT A trial was conducted to research the impact of reducing dietary crude protein (CP) levels from 14.8% 12.6% in finishing diet (90–120 kg body weight) lean pigs, with an essential AA supply (8.8 g Lys, 2.1 Met, 6.7 Thr, 5.5 Ile, and Val, per kilogram feed) intact males females under commercial setting. The productive performances nitrogen (N) balance, blood markers related metabolism, apparent digestibility nutrients, carcass, meat quality were evaluated. This CP restriction did not...

A total of 32 fresh hams intended for the Spanish Protected Designation Origin "Teruel ham" were used to evaluate impact gilt immunocastration (vs. entire gilts) on weight losses during dry-curing process. After processing, 20 dry-cured (10 each group) chosen at random assess instrumental and chemical characteristics. Hams from immunocastrated gilts tended (P = 0.057) present lower losses, they fattier < 0.05) both subcutaneous intramuscular levels had water activity volatile compounds that...

Two experiments were carried out; one with female pigs and the other male destined for Teruel dry-cured ham production, to evaluate effect of immunocastration (entire gilts-EG vs. immunocastrated gilts-IG surgically castrated males males-IM) diet (control high energy low crude protein amino acids) on meat quality fat composition. Fifteen samples eight each treatment analyzed in both experiments. In case males, six per determine boar taint. Immunocastration is a good strategy gilts intended...

Increasing fatness and avoiding puberty are desirable in gilts intended for high-quality dry-cured ham production. A total of 48 Duroc x (Landrace Large White) females 26.5 ± 3.70 kg body weight (BW) were used to evaluate the impact immunocastration find optimum application time second dose on growth; sex hormones; reproductive tract development; carcass, meat, fat quality. Gilts allocated four experimental treatments (n = 12): control (entire gilts, EG) immunocastrated (IG), providing at...

It is desirable to increase fatness in gilts destined for Teruel dry-cured ham production. A total of 192 Duroc × (Landrace Large White) 40.3 ± 4.80 kg body weight (BW) were used assess the impact immunocastration and feeding on growth performance, serum metabolites sex hormones, reproductive organ development, carcass quality. Six treatments arranged factorially (2 3) with two types gilt (entire (EG) vs. immunocastrated (IG)) three experimental diets (control high energy low crude protein...

A trial was carried out to study the effect of type castration and diet on pigs destined for Teruel ham production, which is a Spanish protected designation origin dry-cured ham. total 144 Duroc × (Landrace Large White) male were used. Half them surgically castrated other half immunocastrated with three doses at approximately 25, 58 79 kg body weight. Furthermore, diets (control vs. high energy low crude protein-CP- amino acids-AA) tested from 80 137 Growth performance, serum sex hormones...

A total of 62 highly prolific Danbred sows was used to evaluate the implications increasing dietary amino acid (AA) concentration during late gestation (from day 77 107 pregnancy) on body condition and reproductive performances. Sows were assigned one two treatments (n = 31, with similar number in second-, third- fourth-cycle); control diet (containing 6 g standardized ileal digestible lysine -SID Lys-)/kg) high AA level 10 SID Lys/kg following ideal protein concept for remaining essential...

The objective of this trial was to study the impact slaughter weight (SW) class: heavy (≥120 kg) or light (&amp;lt;120 on carcass fatness, development main lean cuts and fat composition in barrows gilts intended for dry-cured ham shoulder elaboration. A total 181 Duroc × (Landrace Large White) pigs used, being 94 87 gilts. Carcasses from had lower compactness but higher shoulder:ham ratio than those allometric growth coefficient whereas shoulder, loin shoulder/ham were barrows. An...

Aim of study: To evaluate the effect type male castration (surgical vs. immunological) on characteristics Teruel dry-cured hams. Area and Zaragoza (Spain). Material methods: A total 14 hams from Duroc × (Landrace Large White) pigs intended for Spanish Protected Designation Origin ˈTeruel hamˈ were used. Half them belonged to surgical castrated males (SCM) other half immunocastrated (IM). Ham weight losses during processing, physical chemical analyzed. Main results: There no differences...

Abstract Currently, gilts intended for Spanish high quality dry-cured ham are characterized by lack of fatness detected at backfat depth covering the and also in intramuscular fat content, necessary an optimum dry-curing process consumer acceptability, respectively. Trying to solve it, a trial was carried out with 90 Duroc x (Landrace Large White) females assess impact immunocastration different diets on meat quality. Half were entire (EG) other half immunocastrated (IG) two injections...

Aim of study: To evaluate the impact feed level during first month gestation on body weight evolution, backfat and loin muscle depths reproductive performances in highly prolific sows.Area Galicia (Northwestern Spain).Material methods: Thirty-six Danbred sows were assigned to three experimental groups (n=12) receiving, from day 1 30 pregnancy, 2.5, 3.0 or 3.5 kg/d a standard diet (8.83 MJ net energy 138.5 g crude protein/kg). In each group, number second-, third- fourth-cycle was same. All...

In heavy gilts, avoiding puberty is desirable because an impairment of growth performances have been observed during the estrus days. The immunocastration could solve it. A total thirty Duroc x (Landrace Large White) 54.2 ± 4.14 kg body weight (BW), were used to assess effects immunization against GnRH on genital organs development and serum sex hormones. There two experimental groups (n=15): intact gilts (IG) or immunocastrated (IMG). Immunization was carried out by injections Vacsincel®...